The Digital Video Information Network - Photon Management http://www.dvinfo.net/forum/ Shine an ever-loving light on you. en Fri, 20 Nov 2009 23:53:55 GMT vBulletin 60 http://www.dvinfo.net/forum/images/misc/rss.jpg The Digital Video Information Network - Photon Management http://www.dvinfo.net/forum/ Apple behind the scenes white background question... http://www.dvinfo.net/forum/photon-management/467928-apple-behind-scenes-white-background-question.html Wed, 18 Nov 2009 03:44:03 GMT In this video: Apple - Pro - Profiles - Andrew Zuckerman - Behind the scenes ... they have the cleanest white background that rolls up. Where do you get that? All I've been able to find are the folded up ones that are always wrinkled... I did see a green screen with a foam backing that was really clean and rolled up but I've had no luck on finding a white one. Any suggestions?

Thanks,
Michael ]]> Photon Management Michael LaHatte http://www.dvinfo.net/forum/photon-management/467928-apple-behind-scenes-white-background-question.html New LED lamps. http://www.dvinfo.net/forum/photon-management/467898-new-led-lamps.html Tue, 17 Nov 2009 18:42:28 GMT A few weeks ago, I had a small run Chinese lighting outfit make some MR16 LED bulbs to my specifications, I plan on using them in my Anton Bauer Ultralight 2 heads. I should have then in a few weeks, and will post screen caps if they actually work out. My specifications are: One 5600K lamp... A few weeks ago, I had a small run Chinese lighting outfit make some MR16 LED bulbs to my specifications, I plan on using them in my Anton Bauer Ultralight 2 heads.

I should have then in a few weeks, and will post screen caps if they actually work out.

My specifications are: One 5600K lamp and one 3200K lamp, both using Cree chips, no more than 10W draw, minimum of 400 Lumens @ 1 meter, minimum of 55 degree spread, no more than a 110 degree burn temp, 12 to 16V DC, minimum of 10,000 on and off cycles, price per unit no more than $45 USD landed cost, and able to be fitted to a standard MR16 socket.

Stay tuned... ]]> Photon Management Enzo Giobbé http://www.dvinfo.net/forum/photon-management/467898-new-led-lamps.html Grid Pattern from light screens http://www.dvinfo.net/forum/photon-management/467725-grid-pattern-light-screens.html Sat, 14 Nov 2009 16:39:33 GMT I just got a couple Lowel Omnis & a Tota. The light "instructions" indicate that the protective screen should be used in case of lamp shattering. The screen throws a grid pattern, of course. When using the lights without a diffuser or gel, does anybody actually use the protective screens?

Thanks,
Matt ]]> Photon Management Matt Vanecek http://www.dvinfo.net/forum/photon-management/467725-grid-pattern-light-screens.html Alzo 730L On Camera LED Video Light http://www.dvinfo.net/forum/photon-management/467660-alzo-730l-camera-led-video-light.html Fri, 13 Nov 2009 09:41:57 GMT Has anyone tried this on camera LED light from ALZO? ALZO 730L On Camera Video LED Light (http://alzovideo.com/alzo_on_camera_video_light_730l.htm) Has anyone tried this on camera LED light from ALZO?

ALZO 730L On Camera Video LED Light ]]> Photon Management Desmond Sukotjo http://www.dvinfo.net/forum/photon-management/467660-alzo-730l-camera-led-video-light.html My Cool Lights Experience http://www.dvinfo.net/forum/photon-management/467508-my-cool-lights-experience.html Wed, 11 Nov 2009 14:32:39 GMT Hello,

I have written a little writeup about a recent job where I used Richard A's "Cool Lights", LEDs and Flourescent.

I thought it might be of use to the lighting forum to get the opinion of one who has used these lights in a working situation.

The focal point of the article is the use of the new 250w LED lights.

I do not have an affiliation with Cool Lights, but I want to spread the word when someone like Richard makes products that I can budget for and also improve my end product.

Thanks
Attached Files
File Type: pdf Cool Lights.pdf (537.1 KB)
]]> Photon Management Tim Polster http://www.dvinfo.net/forum/photon-management/467508-my-cool-lights-experience.html Have to buy a light set but... http://www.dvinfo.net/forum/photon-management/467483-have-buy-light-set-but.html Wed, 11 Nov 2009 01:11:49 GMT Hola guys, i have to buy a set of light for my interview in indoor locations....I ve just bought 2 500w Ianiro lights. What else do u suggest me 2 buy? thx Hola guys,
i have to buy a set of light for my interview in indoor locations....I ve just bought 2 500w Ianiro lights. What else do u suggest me 2 buy?

thx ]]> Photon Management Marcus Martell http://www.dvinfo.net/forum/photon-management/467483-have-buy-light-set-but.html artificial fire light http://www.dvinfo.net/forum/photon-management/467398-artificial-fire-light.html Mon, 09 Nov 2009 22:20:57 GMT Are there any artificial fire light rigs you can hire that can re-produce the effect of an actor sitting next to a fire? I tried googling it but you can imagine the junk that came up. I'm sure its been used many times but the question is are they commercially hireable or are they self built rigs by dop's and gaffers?

cheers for any advice/links

Andy. ]]> Photon Management Andy Graham http://www.dvinfo.net/forum/photon-management/467398-artificial-fire-light.html Packing your light kit http://www.dvinfo.net/forum/photon-management/467306-packing-your-light-kit.html Sun, 08 Nov 2009 04:19:34 GMT Ok, this may sound like a noob question, but this is my first interview light kit, and I wanted to see what others do. Most of my lighting equipment is industrial-strength PARs used for event lighting, and I've been packing that for several years, and don't need to look *too* pro.

I just bought a [url href="http://www.bhphotovideo.com/c/product/300828-REG/Lowel_401450_Interview_Three_Light_Kit_Soft.html"]Lowel 3-light interview kit[/url], and it came with a soft case. I'm curious as to how people generally pack these things, since the soft case is all open with no compartments. Do people generally just throw everything in the bag? What about leaving the lights in their boxes, and packing those in there at one end with the light stands, umbrellas, etc.? While I would like it to look nice coming out of the case, when arriving at a client's place, I'm more concerned about protecting the fixtures and lamps.

If I were going to buy or build a case, it would have nice compartments for everything, but that's not going to happen anytime soon--I'll be using the one that came with the kit for the foreseeable future.

Thanks!
Matt ]]> Photon Management Matt Vanecek http://www.dvinfo.net/forum/photon-management/467306-packing-your-light-kit.html FLO vs LED http://www.dvinfo.net/forum/photon-management/467263-flo-vs-led.html Sat, 07 Nov 2009 02:15:41 GMT I shoot corporate interviews on location. Some air travel but mostly in town. I like shooting wide open with my EX1 and having some high key daylight in the background like a window, although sometimes its just an office interior. I like pretty high contrast ratios on a subjects face that add a bit... I shoot corporate interviews on location. Some air travel but mostly in town. I like shooting wide open with my EX1 and having some high key daylight in the background like a window, although sometimes its just an office interior. I like pretty high contrast ratios on a subjects face that add a bit of drama and character. I don't want light splashing all over uncontrolled. The option of using battery power sounds cool but I doubt i would use it a lot.

Any thoughts on flo vs led for my situation?

thanks in advance ]]> Photon Management Greg Kiger http://www.dvinfo.net/forum/photon-management/467263-flo-vs-led.html Need critique of these greenscreen / lighting kits http://www.dvinfo.net/forum/photon-management/467237-need-critique-these-greenscreen-lighting-kits.html Fri, 06 Nov 2009 18:47:49 GMT Hey Everyone, So after browsing some sites looking to put together a beginners green screen kit, these are some of the options ive come up with. Let me know if there are details i may be missing about some of the products that would sway my decision, or if you have had a positive or negative... Hey Everyone,

So after browsing some sites looking to put together a beginners green screen kit, these are some of the options ive come up with. Let me know if there are details i may be missing about some of the products that would sway my decision, or if you have had a positive or negative experience with any of these companies / products.


Green Screen option 1:
- Impact Background Support System:
B&H Photo Video | Digital Cameras, Camcorders
- Impact 10'x12' Green Chroma Sheet:
B&H Photo Video | Digital Cameras, Camcorders


Green Screen option 2:
TubeTape Green Screen and Support Stand:
TubeTape Messages


Lighting option 1:
- ImageWest.tv $299 kit:
imageWest - Professional Studio Lighting
- Light subject w/ CFL's from local hardware store.


Lighting option 2:
- Amazon 1200 Watt Fluorescent kit:
http://www.amazon.com/Exclusive-Fluo...7495324&sr=1-2
- Amazon 600 Watt Fluorescent kit: (for subject?)
http://www.amazon.com/Kaeser-Cool-Fl...pr_product_top


Lighting option 3:
- Get everything from hardware store and rig my own lights. Read one article that suggested that "Fluorescent pans (fixtures with two or more tubes) make great soft lights".


Let me know what you think about these options or if you would suggest something not on the list. Thanks! ]]> Photon Management Shawn Whiting http://www.dvinfo.net/forum/photon-management/467237-need-critique-these-greenscreen-lighting-kits.html 2001 A space Odyssey http://www.dvinfo.net/forum/photon-management/467178-2001-space-odyssey.html Thu, 05 Nov 2009 18:50:38 GMT I think its in the sequence of TMA, where there is a room full with people. A presentation of some sort is been given.
I'm interested in the lighting of that room?

Has anyone noticed the walls are the lights. I'd be interested to learn how it was achieved.

If any one has any thoughts or ideas, i'd be interested to learn what the knowledge you have. I've tried searching on the internet and books but nothing has come up.

Cheers
Andrew ]]> Photon Management Andrew Carter http://www.dvinfo.net/forum/photon-management/467178-2001-space-odyssey.html Kino flo diva lite 400 vs ??? http://www.dvinfo.net/forum/photon-management/467130-kino-flo-diva-lite-400-vs.html Wed, 04 Nov 2009 21:07:26 GMT I have shot a few jobs with a rented kino flo diva lite 400 as my key. Seems like a nice light, works with my style of bright open daylite background interviews. Dimmable, enough output, daylight or tungsten, cool, etc. My question - before I go buy one are there other / better options I should... I have shot a few jobs with a rented kino flo diva lite 400 as my key. Seems like a nice light, works with my style of bright open daylite background interviews. Dimmable, enough output, daylight or tungsten, cool, etc.

My question - before I go buy one are there other / better options I should consider?

thanks ]]> Photon Management Greg Kiger http://www.dvinfo.net/forum/photon-management/467130-kino-flo-diva-lite-400-vs.html Creamsource LED light. http://www.dvinfo.net/forum/photon-management/467032-creamsource-led-light.html Tue, 03 Nov 2009 11:52:24 GMT Ours arrived today: Outsight

This is one BRIGHT light. I can vouch for the claim that it's as bright as a 575W HMI. Apart from being the usual dimmable LED light source it can also create random or regular flashes to simulate lightning as well as sync to black. DMX control is also provided.
Construction is excellent, all machined Al. The blue anodising makes this instrument standout.
My only concern is this light is really multiple light sources and can produce multiple shadows as a result. There appears to be a diffuser coming for this light which should get around this issue.
Worth noting that the unit costs around the same as a top shelf 575W HMI.
Everything else is covered in the specs. We also acquired the cable to run this light off a bank of AB Li-Ion bricks although at full power of 400W I would estimate runtime as under 1 hour. ]]> Photon Management Bob Grant http://www.dvinfo.net/forum/photon-management/467032-creamsource-led-light.html <![CDATA[Need advice on green screen & lighiting]]> http://www.dvinfo.net/forum/photon-management/466851-need-advice-green-screen-lighiting.html Sat, 31 Oct 2009 08:39:36 GMT Hey Everyone,

I'm going to list my questions with numbers so i can track your responses easier.


1. So This will be my first attempt at using green screen, and i was wondering if anyone had any beginner info for me, especially related to this camera (hmc150).

2. I'll be using the green screen behind subjects that im interviewing, so i probably wont buy that large of a sheet. Any advice on what i should be looking for in purchasing a green screen? Any place more reputable for ordering one online?


3. Other thing im worried about is lighting it evenly. Only thing ive got right now is clamp lights. Any sort of low budget solution to lighting the thing evenly?

4. The room im shooting the interviews in has fluorescent lights above, and daylight from the side, but i could kill the daylight with blinds if i dont want it hitting the green screen. Is that something i should be worried about?

5. Anything else I need to know?


Thanks so much!

- Shawn ]]> Photon Management Shawn Whiting http://www.dvinfo.net/forum/photon-management/466851-need-advice-green-screen-lighiting.html <![CDATA["Steven Studio" HMI 1.2K Fresnel Light.]]> http://www.dvinfo.net/forum/photon-management/466731-steven-studio-hmi-1-2k-fresnel-light.html Thu, 29 Oct 2009 06:17:14 GMT Following below are some notes I have written for this light kit for which there is currently no available English-Language user-documentation. I am no lighting technician so my notes below do not assure effective operation of the system or safety for the operator. Comments and additional... Following below are some notes I have written for this light kit for which there is currently no available English-Language user-documentation.

I am no lighting technician so my notes below do not assure effective operation of the system or safety for the operator.

Comments and additional information and in particular, safety cautions by lighting guys are therefore sought and will be most welcome.

The comments below are based on my own observations of one of these lamps recently purchased. I have published the notes below for the purpose of prompting purchasers/users to a need to educate themselves in the use and maintenance of all HMI fixtures, not to simply aquire or hire, then plug in and switch on.

I have taken the attitude that not to publish is more neglectful than publishing unauthorised notes which may be incomplete or miss an important detail.

Owners or users of the "Steven Studio" HMI and other lamps imported from China should conduct their own careful researches and observations and develop a best practice based on the best advice.



UNAUTHORISED HANDLING NOTES FOR “STEVEN STUDIO” 1.2K HMI LAMP.



PRODUCT DESCRIPTION.


The unbranded 1.2K HMI Fresnel lamp kit vended by Steven Studio is generally patterned after the style of ARRI and similar HMI lights.

The lamphouse construction consists of two-piece cast aluminium ends, which carry channels into which a combination of aluminium extrusion strips and pressed aluminium sheetmetal as vented side covers, steel sheetmetal internal heatshields and supports, are inserted and secured by machine screws.

Finish is a blue paint coat over the end pieces and silver anodising for the sides with the steel support cradle and base sled finished in black.

The upper front endpiece carries a hinged holder for barndoors and fresnel lens.

The upper rear endpiece is a vented cover which includes a small metal loop for a safety lanyard, chain or cable.

The lower front and rear end pieces support a worm and roller shaft and plain shaft which actuate the spot and flood focus. This functions by moving the lampholder and rear reflector towards or away from the fresnel lens. Both shafts are also the lampholder support.

The lampholder is for the G38 mount type OSRAM 1200W/SE metal halide globe.

Spot and flood adjustment is operated by two knobs, one each at front and rear attached to a common shaft.

Within the lower lamphouse, there is a terminal strip for wiring, integrated with encapsulated circuitry from which the heavy current leads to the lamp emerge. These leads feed through a support panel and heat shield via loose fitting grommets.

On one lower side panel there is fastened a short lead and connector. On the opposite lower side panel is the local on-off switch.

A slotted base panel is retained by overlap of two side covers.

The lower screws which secure these side covers also fasten a steel base frame formed from welded metal rod and flat bar.

Ventilation is by convective airflow.

The lamp is powered by an electronic ballast unit which permits frequency selection for 50Hz, 60Hz and “Flicker free”. There is a red push-button power switch on the front control panel. Also will be found to the left of the push-button is what appears to be a 25A circuit breaker. Circuit breakers are not customarily used as an on-off switch and such use might cause premature failure of the breaker.

The lamp, connecting cord and ballast are contained in a purposed blue panelled industry style transit case of apparent good construction quality and appearance.



WHAT YOU GET.


The lamphouse with barndoors, ballast unit, HMI lamp and supply cable will most likely arrive in the purposed transit case within a tight fitted cardboard box.

The lamp unit includes the support cradle already assembled onto the lamphouse.

A stand must be obtained separately as there is no stand included in the kit.



The components are comprised of :-


Lamphouse including, assembled fresnel lens, support cradle and barndoors frame.

Connecting cable.

Electronic ballast unit including mains supply cable with two-pin connector. (The purchaser must arrange supply and rewiring of a plug suited to the local mains power supply systems.).

To be confirmed - New HMI globe in box. I received an Osram globe in box. (Please do not throw away this box. As the globe should not remain installed in the lamphouse when it is to be shipped over long distances, the box remains the only safe enclosure for shipping the globe.)



ON RECEIPT OF GOODS.


It is recommended that purchasers unpack, then pick up the lamphouse, turn it over several times in several directions and listen carefully for the sound of internal fasteners or fittings which may have come loose during the sometimes violent stresses of shipping.

Then perform a visual inspection. Pay particular attention to the ceramic lampholder, its metal cradle and fasteners, for chips, cracks or excessive looseness.

The ceramic lampholders normally have some looseness between the two clamping components when the globe is not fitted.

There will also be some permitted looseness in the fitment of the sliding lampholder assembly on the rods which carry it.

Check the polished metal reflector. It should be found supported in a cradle of three ceramic hooks. The upper hook may have been sprung in a severe impact and the reflector partially dislodged. Avoid touching the polished metal surface of the reflector as any skin oils will become baked on and create a permanent stain.

Check tightness of all visible external fasteners including the two screws for each of the support claws for the barndoors assembly.

Check the tightness of the rear safety cable loop fastener.



SAFETY PRECAUTIONS WHEN OPERATING.


Do not move the lamp when it is operating.

Allow plenty of time for the globe and the lamphouse itself to cool before moving the lamp or packing it into its transport case.

If the lamp fails, assume always that the globe may explode and wear appropriate personal protective equipment when troubleshooting or changing the globe.

Whilst the venting is louvred, this lamp is not intended to be operated in rain or under water sprays. Fluid spills or droplets might not enter the enclosure directly but may wick in along joints and cause the globe to explode or the ceramic components to crack due to shock cooling.

There is also a risk of lethal electric shock when moisture is involved. Do not assume the heat of the lamp will boil off small amounts of moisture. This may condense elsewhere inside the lamphouse, cause corrosion or conductive carbon tracks across insulation and make the lamp or the ballast fail.

Do not look directly at the operating lamp.

Do not operate the lamp if the fresnel lens door is opened, the fresnel lens is missing or cracked. The globe is a source of potentially harmful ultraviolet radiation. Furthurmore, in this state, there is no protection from debris thrown forward by a globe explosion.

Route the cables systematically and sensibly to avoid tripping hazards or the lamp being pulled to ground.

The lamphouse can become very hot and is a potential burn hazard to unprotected hands or skin. Loose flammable materials should not be directly mounted to the lamp as diffusers.

The lamp should not be placed and operated where flammable materials like curtains or foliage may brush against it.


Because of competitive costs, this lamp may become favored by some small or low-budget independent film makers and purchased outright, rather than rented.

Small or low budget projects often are supported by crew multi-tasking and may be populated by untrained onlookers or keen enthusiasts. All should be discouraged from approaching the lamp to assist move or operate it unless already properly trained in use of HMI lamps.



AUTHOR'S NOTE.

My personal preference for on-set crew maintaining or servicing a HMI lamp, would include use of a full mask capable of protecting head and neck from glass fragments moving at high speed, long sleeved welding gloves for hands. If possible, use a welding apron for protection of chest and abdomen, though for a 1.2K light this might be regarded as over-caution by some.

The lamp should be removed from set for servicing or troubleshooting.

Before the front hinged door is opened for repairs or globe change, the lamp should be positioned to face a natural shield like a wall to prevent any fragments of glass flying freely and injuring anyone else nearby. ]]> Photon Management Bob Hart http://www.dvinfo.net/forum/photon-management/466731-steven-studio-hmi-1-2k-fresnel-light.html