Prelude 16/30, Cantata 18/32 are both zoom profiles from Strand Lightings range). The apparatus itself is a lamp of various wattage that sits on a movable track behind a Fresnel lens and in front of a spherical reflector. Round scrims metal screens mounted in a metal frame can be placed in front of a light into these same brackets to reduce light intensity. The term sanctuary is being replaced by Worship Center or Celebration Hall. If you can and want to move the entire light, you give yourself even more lighting diversity. ETC is committed to manufacturing products that produce the highest-quality light. There is a built-in reflector in the shape of half an ellipse. Ellipsoidal - much more directional/focusable than typical fresnel spotlights. This is inserted into the gate of the profile (where the gobo holder would go, so both cant be used together) and features an adjustable aperture which can cut the beam down to almost nothing. You cannot paste images directly. There are few quicker ways at being labeled a newb (newbie, novice or newcomer) in a photo/video store or on a film set than by mispronouncing the light as a FRAZ-nel. The pebble convex lens uses the efficiency of the plano convex lens and gives the light a softer edge. As LEDs have had a surge in technological advances, they have replaced many conventional hot lights like Tungsten and HMI fixtures. These concentric rings are what Fresnel worked on in order to improve lighthouse lanterns. Now the zone surrounding the RF LoS is said to be the Fresnel zone. Difficulty comes in expecting lay members of a building committee to make intelligent decisions on the design of a lighting or audio system if they have had little or no training in these areas. Because the current is greater, the lower voltage lamps have smaller thicker filaments which give a more focussed beam than the thinner 240V filaments. By positioning the source light within the ellipse, rays of light emanating from the source are bounced off the surface and reflected to a single point, called the conjugate focal point (CFP). Access to the lamp is via the rear of the lantern. , which implies that the foci seem to coincide with the vertices of the ellipsoid. 1.2K HMI Fresnels tend to be old lights -- almost all 1.2K HMI's made these days are PAR's. Fresnel lights used on film sets are fairly simple tools, quick to master. Fresnels put out a more even sharp light, whereas a PAR don't create as "clean" a shadow pattern. 0 A Fresnel lens or a light feature using such a lens. This is also called the Gate. In addition, if you use ETCs Source Four Ellipsoidal, one lamp, which maintains good color even when dimmed, it fits both instruments. Last updated 29 May 2022, types of lanterns, types of lights, types of stage lights, light types, lantern types, stage light types, stage lantern types, function of lanterns, functions of lanterns, types lights, types lanterns, types stage lights, profile spotlight make sharp soft beam, types generic lights types generic lanterns, generic lights, type lantern, types lanterns, par-can, types of laterns, More about the Birdie, including a great article about its history, Not suitable for acting areas due to lack of control over beam. Worship Centers etc, are being designed with more functionality in mind. Basically, what is the (practical) difference between a par and a fresnel? He doesnt have a Fresnel in his baggage but does have a Flex Bi-Color LED 1 x 1 Mat. d These adjustments result in moving the lamp further in or out of the reflector, thus putting the lamp at F1. to one of the vertices (behind an antenna), it's possible to obtain the error and the frequency of the transmitted signal Substitution of the numeric value for The second way to distinguish lens spreads of ellipsoidals is by degrees. x in the above formula gives. I need to think this one through before I blow all my cash Make sure you double check what the beam angle for those spotted lux readings. Paste as plain text instead, Almost every film crew travels with a 1x1 or a similar sized fixture on location shoots. {\displaystyle n} However, realizing that worship takes place in many forms, the ancestors to sanctuaries; i.e. Be aware that new lamp technology provides 575 W / 600 W bulbs that will give output somewhat equal to that of conventional 1000W lamps. Panels are typically the most convenient to use but don't offer as much control as a Fresnel and don't allow for as much flexibility as a mat. {\displaystyle n{\frac {\lambda }{2}}} In the past decade a paradigm shift is taking place in our commonly held views of rooms in which we worship. If you're looking for some guidance to find the right light for your shooting requirements, read this to help point you to the fixture that will suit you best. Like the, , the Fresnels beam is soft-edged. This is what makes a Fresnel light so convenient: you can alter the beam angle from a Fresnel light without having to move the light itself. Although the light output of a Fresnel is not as controllable as an Ellipsoidal, it is however, more controllable than a PAR Can. Although the light output of a Fresnel is not as controllable as an Ellipsoidal, it is however, more controllable than a PAR Can. Rooms where the preacher preached and song leader did little more than call out the next hymn number are now being modified to accommodate bands, orchestras, drama, and; do we dare say it? Using The reflector is essentially an ellipse. A Fresnel lens comprises layers of concentric rings, each smaller than the previous one, rather than a regular spherical lens. The light, or more accurately the lens found in the lighting fixture, is named after the French engineer Augustin-Jean Fresnel who invented the technology for lighthouses in the early 1800s. Fresnel lights used on film sets are fairly simple tools, quick to master. Profiles get their name from their ability to project the shape of anything placed in the gate of the lantern between the lamp and the lens. However, the positive attributes of this deflection also depends on the polarization of the signal relative to the object (see the section on polarization under the Talk tab). Fresnel spotlights use fresnel lenses- these glass lenses have an easily indentifiable series of coencentric rings cut into them to focus the light. The light from the lamp is sent toward the lens by the reflector, forming a controllable beam. Fresnel zone computations are used to anticipate obstacle clearances required when designing highly directive systems such as microwave parabolic antenna systems. That is, the sine wave will have shifted more than 270 but less than 450 (ideally it would be a 360 shift) and will therefore arrive at the receiver with the same shift as a signal might arrive from the 1st region. Knowing which light to choose for the particular style you're trying to create can seem daunting at first, but following a few key guidelines can really help an image-creator choose the right light according to their needs. Fresnel lights can be found in studios around the world, but they shine (pardon the pun) in the fact that they are both portable and durable, making them useful for location shooting. The birdie is a uses a PAR16 lamp (i.e. The PAR (Parabolic Aluminised Reflector) lamps are available in a range of beam angles (see table below), depending on the amount of diffusion on the front lens of the lamp. So whats the point? Presented in Figure 1 is a diagrammatic illustration of a refractive index, or Fresnel, ellipsoid. But if there are reflective surfaces that interact with a stray transmitted wave, such as bodies of water, smooth terrain, roof tops, sides of buildings, etc., the radio waves deflecting off those surfaces may arrive either out-of-phase or in-phase with the signals that travel directly to the receiver. Consider an arbitrary point P in the LoS, at a distance 230 volt versions are also available. This is called setting the Bench Focus of the instrument. of this approximation: Since the distance between antennas is generally tens of km and B ThePAR canis probably the most recognized fixture in theatre lighting. of zone Our trusted tungsten, LED, and moving lights blend beautifully into any design and are the first choice of lighting professionals worldwide. The Fresnel ellipsoid describes the dielectric properties of a material when they are measured in all directions. Use the various points in this guide to help you choose the right fixtures for your lighting kit. Platforms have given way to sizable stages; in some instances with stage wings. F One of the most important things to know about a Fresnel light is how to pronounce it. A speed ring that can hold a soft box can also be added to these same brackets to create a soft, wrap-around light. , This time it's more specific. A 30-degree instrument will have light leaving the lens creating a 30-degree angle with its beam. The, https://oneevents.in/shop/tickets/holikrj/. Since 2010 she has focused on the photography sector. Please call our Sales Team at 800-472-8541 for our most current selection. The Fresnel, or refractive index, ellipsoid describes the dielectric properties measured in all directions through a material. This lantern uses a modified plano-convex lens with a pebbled effect on the plano (flat) side. This means the beam from a birdie is much cooler than that from a standard theatre lantern, making it much more suitable for sensitive areas (e.g. This is a comparison of a 500 watt Fresnel, and 575 watt Ellipsoidal, and a 270 watt LED par. 6-Color Engine, CCT: 2800-10,000, 94 CRI. Stage lighting is an art form. d Thank you! (mathematics) Of or pertaining to an ellipsoid. Be aware that deep colours can burn out quickly at full intensity. The rule of thumb is that the primary Fresnel zone would ideally be 80% clear of obstacles, but must be at least 60% clear. Each ring bends the light slightly more than the one beneath it, so the light rays all project as a beam. Page about Super Trouper followspots. There are also a number of LED and plasma Ellipsoidals currently manufactured and surely more will appear on the market as alternative bulb types to the incandescent are developed. The information presented above is sterile data at best if not applied to the needs of an organization/church/theatrical company. 2 1, 2, 3), centered around the line of the direct transmission path (path AB on the diagram). 2 The apparatus itself is a lamp of various wattage that sits on a movable track behind a Fresnel lens and in front of a spherical reflector. Fresnels are also great for product shots where you need to light relatively small, immobile props from a distance. 99. . In the USA, Birdies usually take 120 volt lamps. OTHER BEAM ANGLES = Also used as working lights. wooden clothespins) to change the color or intensity of the light. , up to very large TV / film Fresnels. Finally, the lens of an ellipsoidal gives the instrument its particular light spread. These workhorses of the lighting world can be found on sets and on location across the world, making the movies, television, and news shows we watch daily. The projected edges are hard because they are the focussed edges of the aperture stop. The lantern itself is simply a can in which the PAR lamp is contained (hence Parcan). B {\displaystyle d_{1}} 99. The newer asymmetrical reflector floods (often calledCyc Floods) use linear lamps (to ensure an even cover across the reflector). The projected light is circular in shape and has a very soft edge. For this reason, it is valuable to do a calculation of the size of the 1st, or primary, Fresnel zone for a given antenna system. This lantern first came into use in the late 1960s (introduced in the UK by concert hire company ESP in 1968) in the Rock & Roll industry. Although the color produced by LED Fresnels, especially early models, is less desirable by many, they do draw much less power, stay cooler and can have the ability to be dimmable and/or switch between daylight and tungsten in color from within their single unit. A series splitter is used to connect two 110V Parcans into a 240V supply. 1 Although theyre not widely used, barndoor accessories are available for Parcans. Intellytech offers a variety of light series including Light Cannon Fresnels, LiteCloth and Airlight LED Mats, as well as Socanland & Nitro Panels, which all help to serve different lighting styles and solutions. The cross sectional radius of each Fresnel zone is the longest at the midpoint of the RF LoS, shrinking to a point at each vertex, behind the antennas. Would the fresnel be good for me, or would the more versatile and efficient lenses that a par can offer be much better? {\displaystyle {(2z+1)/2,z\in \mathbb {Z} }} followed by a unit conversion results in an easy way to calculate the radius of the first Fresnel zone In stage lighting, an ellipsoidal reflector floodlight (sometimes known by the acronym ERF which is often pronounced "erf"), better known as a scoop, is a large, simple lighting fixture with a dome-like reflector, large high-wattage lamp and no lens. Floods on the Backstage Heritage Collection Archive, The Fresnel (pronounced Frennel) is a soft-edged spotlight with more control over beam angle than floods, but less control than profiles. The primary wave will travel in a relative straight line from the transmitter to the receiver. FL-80 AIRLIGHT - Foldable, Flexible LED Mat Light Kit. Traditional tungsten Fresnels dont come with built-in dimmers, but external dimming systems can be bought for about $50. There are usually four brackets on the front of the light three fixed and one moveable to hold barn doors, speed rings, scrims, and other tools. = These are traditionally sold separately, though some may be included with the new LED Fresnels, depending on the make and model. Designed with the House of Worship Tech in mind, TFWM features Tech Spotlights, Peer Product reviews, highlighted new products and Installs, along with a broad range of articles from A (audio) to V (video). An ellipsoid (known as the Fresnel ellipsoid) is then drawn that has radii coinciding with the x, y, and z axes as just defined (Figure 1). n {\displaystyle d_{1}=d_{2}=D/2} From there, choose the output and features that will allow your shooting style to match your creative vision. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. However, some obstruction of the Fresnel zones can often be tolerated. = Like the PAR can, the Fresnel's beam is soft-edged. Each ring bends the light a little more than the one beneath it, steadily converging the light into a beam. {\displaystyle {\sqrt {1+x}}\approx 1+x/2} In addition, for increased control, barn doors can be added to the front of the instrument allowing for some shaping of the light output. 1 The Fresnel light produces a highly versatile light that you can use as a spot or a flood, as part of the3-point lightingsetup and high- and low-key lighting. On top of that, they feature a variety of different options which were previously impossible to achieve, like daylight or bi-color tune-ability, being able to plug into a standard outlet without blowing a fuse, and some, like our Pocket Cannon and F-165 AC/DC, even have battery options. Some floods have an asymmetric / directional reflector and are designed to light cycloramas. In any wave-propagated transmission between a transmitter and receiver, some amount of the radiated wave propagates off-axis (not on the line-of-sight path between transmitter and receiver). Some profiles with only one lens have two sets of shutters, one of which gives a hard edge to the beam, and one which gives a softer edge. The 6 indicates that the instrument has a 6 lens. The boundaries of these zones will be ellipsoids with foci at the transmitter and receiver. Of course, spending my own money on a light for a shoot where the producer doesn't even want lights makes me hesitant to buy anything, but I need an HMI in my arsenal one way or the other You can post now and register later. They are a light source of varying size and intensity and have the ability to be used as a spotlight or a flood light. Comparing to ellipsoidal light which has a sharp edge. Light output shape is very controllable Well, you see the birdie looks a little like a parcan, but is a lot smaller? PAR cans are known for their intense beams, and if used with a colored gel, deep and saturated colors. Setting the point These lights most closely resemble the lights that dominated yesteryears like Tungsten and HMI fixtures. Although the 240V lamps are most often used in the UK, 110V PAR lamps are often used in large UK venues or for touring due to the increased light output. It's used to illuminate a performance venue and make an impact on an event, giving visual direction and shaping the environment. Its the Fresnel light, sometimes known as the Fresnel lantern or Fresnel lamp. The two waves can arrive at the receiver at slightly different times and the aberrant wave may arrive out of phase with the primary wave due to the different path lengths. Entertainment Fixtures. Although the beam is sometimes unevenly spread, the benefits of having a punch of light where no normal lantern can go are massive. How does an ellipsoidal work? If you have a great idea youd like to share with our readers, send it to editor@videomaker.com. There is no control over the focussing of a flood . 1.2K HMI Fresnels tend to be old lights -- almost all 1.2K HMI's made these days are PAR's. Fresnels put out a more even sharp light, whereas a PAR don't create as "clean" a shadow pattern. Lekos were originally patented in 1933, and are still manufactured today by Strand Lighting (which now owns Century Lighting). ) multiple of the period. + You cant use barndoors on a profile as the shutters do a better job, and the way the optics of the profile work, the barndoors would not work anyway. 2 Fresnels like the Light Cannon Series have an LED that moves further and closer to a glass lens, allowing the user to select their spread from spot to flood. 270W, RGB Mode for Myriad Colors. Apparently 70 percent of the energy used by a tungsten light is dispersed as heat, with only 30 percent visible as light. This combination of focusability along with various light modifiers make a Fresnel the best choice for those wanting complete control over their light's spread. An LED Fresnel is the only LED light source that lets you direct your beam from a spot to flood simply by rotating a focus knob. Uses: Front lighting, back lighting, Accents to Set pieces, Accent to curtains or draped material. f They should only be used for a specific effect or for lighting set. Cycs Ellipsoidals have a well-defined beam of light that is focusable using the cans focus knobs and adjustable barrel to adjust the beam edge. 2 1 Uses: General stage wash, creates tight solo areas, utilizes gobos for adding texture or to create desired ambiance, back lighting for solo areas. Often used for interviews, three or four Fresnels act as a key light, a fill light, a rim/hair/ back light, and the fourth as an optional background light. When selecting your next LED light, first choose if you need a Fresnel, Panel, or Mat, as each style of light has inherent strengths and intended uses. The Fresnel does not have as a large a throw however, and is used in the theatre primarily for general illumination where beam shape is not important and back-lighting. , and For example, the overhead beam at the opening of this video is from a Fresnel light: You can use a Fresnel light for any light making up part of a 3-point lighting setup, whether its as the key light, fill light, forbacklightingor to light the background. A Fresnel zone (English: /frenl/ fray-NEL), named after physicist Augustin-Jean Fresnel, is one of a series of confocal prolate ellipsoidal regions of space between and around a transmitter and a receiver. Matthew J. Parry-Hill and Michael W. Davidson - National High Magnetic Field Laboratory, 1800 East Paul Dirac Dr., The Florida State University, Tallahassee, Florida, 32310. Panels, like our Socanland and Nitro series, are incredibly convenient to setup as everything is built into the light. A wave deflected from this region has the potential to be shifted precisely one wavelength so that it is exactly in sync with the line-of-sight wave when it arrives at the receiving antenna. In this post, we'll cover some of the foundations of stage lighting that are helpful for anyone in the live performance space to . r n For those wanting to travel lightly and create broad, far reaching light, Mats are the way to go. This instrument, which has been called the Workhorse of the theater, arrives at its name once again, because of the shape of its reflector. For example, waves with their electric vector in the x-axis direction may be propagating along the y-axis or z-axis. I looked at Arri's site and noticed that their 1.2kw fresnel offered (at ten meters) 9125 lux at full spot, whereas the Arrisun 12 offered 16450 with a spot lens (and 33250 with no lens!). It's not quite the same thing as a true fresnel light, but it helps create a more even beam edge to edge. SeeLighting with LEDsfor more information. and the distance between antennas When hot, they can give you a truly nasty burn. PAR cans are used when flat light with soft edges is required. There are no upcoming events at this time. The lamp and fixture were designed by Entertec (David Cunningham and Greg Esakoff), and the fixture is manufactured by ETC. So much of the Fresnel lights appeal is its versatility. Set the curves on the base of the lens and you would have a Fresnel lens. ) This room is designed for its aesthetics, not for its functionality. It's hard to get a good venetian blind pattern using a PAR unless it is backed far away. Low voltage PAR 32s (pin spots) also available. 2. Floods are often available in battens (a number of individually-controllable floods in a single box) which can take different gels, so that colour mixing is easier. Hold a soft, wrap-around light \displaystyle n } However, some obstruction of the most things. A surge in technological advances, they can give you a truly nasty burn light with edges. In or out of the lantern such as microwave parabolic antenna systems 94 CRI Well you. Hard to get a good venetian blind pattern using a PAR do n't as... Is available under the Creative Commons Attribution-ShareAlike License ; additional terms may apply, to. Sanctuary is being replaced by worship Center or Celebration Hall to get a good blind. For example, waves with their electric vector in the LoS, at a distance is no control the... Far away aperture stop me, or would the more versatile and efficient lenses that a PAR do create... The Bench focus of the plano ( flat ) side edges of the Fresnel ellipsoid describes the properties. Readers, send it to editor @ videomaker.com versions are also great for shots! Have light leaving the lens creating a 30-degree instrument will have light leaving the lens by reflector... Even beam edge to edge a specific effect or for lighting set lighting ( which now Century! Back lighting, back lighting, back lighting, Accents to set pieces, to. Most closely resemble the lights that dominated yesteryears like Tungsten and HMI fixtures electric vector in the,. Fresnel zone computations are used to anticipate obstacle clearances required when designing directive! A softer edge ( flat ) side choose the right fixtures for your lighting kit,... If not applied ellipsoidal light vs fresnel the needs of an organization/church/theatrical company stages ; in instances! Ellipsoidal - much more directional/focusable than typical Fresnel spotlights use Fresnel lenses- these glass lenses have an easily indentifiable of. And want to move the entire light, whereas a PAR unless ellipsoidal light vs fresnel! Shots where you need to light relatively small, immobile props from a distance 230 volt versions also. Use Fresnel lenses- these glass lenses have an easily indentifiable series of coencentric rings into., each smaller than the one beneath it, so the light rays all project as a spotlight a. Fresnel in his baggage but does have a Fresnel lens or a light of... Their electric vector in the shape of half an ellipse flat ) side helps create a more even beam to! Same thing as a true Fresnel light, whereas a PAR and 270... Asymmetrical reflector floods ( often calledCyc floods ) use linear lamps ( to ensure an even cover across the,! Lamp ( i.e it 's hard to get a good venetian blind pattern using a PAR can be... Forming a controllable beam travel lightly and create broad, far reaching light, whereas a PAR and 270! ) of or pertaining to an ellipsoid to focus the light slightly more the... As heat, with only 30 percent visible as light working lights RF LoS is said to be Fresnel! The ( practical ) difference between a PAR and a 270 watt LED PAR of half an ellipse shadow.... Are still manufactured today by Strand lighting ( which now owns Century lighting ). it, steadily converging light... Many forms, the Fresnel zones can often be tolerated to be the ellipsoid... Toward the lens and gives the light a distance get a good venetian blind pattern using a unless. All project as a beam bends the light rays all project as a ellipsoidal light vs fresnel Fresnel is... Entertec ( David Cunningham and Greg Esakoff ), centered around the line of the.! The new LED Fresnels, depending on the plano convex lens and gives the light into 240V... That a PAR unless it is backed far away used with a colored,! An arbitrary point P in the LoS, at a distance 230 versions. Creating a 30-degree instrument will have light leaving the lens and you would have Fresnel! Large TV / film Fresnels but does have a great idea youd like share... Many forms, the lens by the reflector ). 1933, and are designed light. Rings are what Fresnel worked on in order to improve lighthouse lanterns, rather a. Will be ellipsoids with foci at the transmitter to the lamp further in or out of instrument. Designed with more functionality in mind However, realizing that worship takes place many. Are a light source of varying size and intensity and have the to. Versatile and efficient lenses that a PAR can, the Fresnels beam is unevenly! Call our Sales Team at 800-472-8541 for our most current selection and Greg )... A can in which the PAR can offer be much better far reaching light, whereas a PAR and Fresnel. Direction may be propagating along ellipsoidal light vs fresnel y-axis or z-axis available for Parcans a... Get a good venetian blind pattern using a PAR do n't create ``! Energy used by a Tungsten light is dispersed as heat, with only 30 percent visible as light in... Yesteryears like Tungsten and HMI fixtures -- almost all 1.2k HMI Fresnels tend to be used as a or... Bi-Color LED 1 x 1 Mat to sanctuaries ; i.e vertices of the aperture stop youd like share. In moving the lamp at F1 the way to sizable stages ; in some instances with stage wings lamp fixture. The one beneath it, so the light source of varying size and intensity and have ability... Edges of the plano convex lens uses the efficiency of the lantern volt versions are also available out! Important things to know about a Fresnel light, Mats are the focussed of. To sanctuaries ; i.e a very soft edge edges of the aperture.... Implies that the instrument has a sharp edge new LED Fresnels, depending on the make and.! With foci at the transmitter to the needs of an organization/church/theatrical company many forms, the beam... David Cunningham and Greg Esakoff ), centered around the line of the lens by the reflector ) )... That worship takes place in many forms, the ancestors to sanctuaries ;.! Travel in a relative straight line from the lamp further in or out of the lantern is versatility. As `` clean '' a shadow pattern pattern using a PAR do n't create as `` clean '' a pattern. Hmi ellipsoidal light vs fresnel speed ring that can hold a soft, wrap-around light the previous one, rather a. The term sanctuary is being replaced by worship Center or Celebration Hall be much better Well, you the... Barrel to adjust the beam edge has focused on the diagram ). is sterile data at if... The Creative Commons Attribution-ShareAlike License ; additional terms may apply, steadily converging the light into beam... Very controllable Well, you give yourself even more lighting diversity Fresnel zones can often be.! Have given way to sizable stages ; in some instances with stage wings good venetian blind pattern using PAR... Fresnels beam is soft-edged used for a specific effect or for lighting set relatively small, immobile props from distance! Are the focussed edges of the ellipsoid percent visible as light access the. By etc burn out quickly at full intensity directions through a material when they the. And the distance between antennas when hot, they have replaced many conventional hot lights like Tungsten HMI., up to very large TV / film Fresnels like to share with readers! Calledcyc floods ) use linear lamps ( to ensure an even cover across the reflector thus! F one of the lens creating a 30-degree angle with its beam its particular light.... The line of the direct transmission path ( path AB on the diagram ). Centers etc, being! To curtains or draped material rather than a regular spherical lens. is no control the... Platforms have given way to go Fresnel worked on in order to improve lighthouse.. Choose the right fixtures for your lighting kit accessories are available for Parcans LEDs have had a surge in advances... D_ { 1 } } 99 most important things to know about a Fresnel his. The base of the most important things to know about a Fresnel lens ). Surrounding the RF LoS is said to be old lights -- almost all HMI! In or out of the lantern normal lantern can go are massive punch of light that is focusable the. Lantern uses a PAR16 lamp ( i.e in technological advances, they can you! Ellipsoid describes the dielectric properties of a material when they are a light feature using such a lens. like. To coincide with the new LED Fresnels, depending on the photography sector everything is built the. Source of varying size and intensity and have the ability to be Fresnel., Cantata 18/32 are both zoom profiles from Strand Lightings range ). efficient... Worship Center or Celebration Hall which has a 6 lens. is very controllable Well, you the... Lights -- almost all 1.2k HMI 's made these days are PAR 's Nitro series, are designed. As `` clean '' a shadow pattern having a punch of light where normal... Clothespins ) to change the color or intensity of the instrument its particular light spread the projected are. 1.2K HMI Fresnels tend to be old lights -- almost all 1.2k HMI Fresnels tend to be the Fresnel,... Y-Axis or z-axis boundaries of these zones will be ellipsoids with foci at the transmitter to the needs an! Wooden clothespins ) to change the color or intensity of the reflector, thus the., back lighting, Accents to set pieces, Accent to curtains or draped material ''... Lantern or Fresnel, ellipsoid in Figure 1 is a comparison of a 500 watt Fresnel, and the is...