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01-12-2011, 09:28 AM   #1
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Can this be used in a darkroom ?

Is it possible to use a night vision goggles, like the one bellow, to more easily mount the films on the spiral in total darkness ?

The Goggles utilize built-in illuminator for added image clarity in total darkness.
Would this have an effect on IR films ?

"The soft, one-piece eyecup prevents[...] light leakage from the device"

The angle of view is 30 like a standard lens...



01-12-2011, 09:42 AM   #2
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Sure, but why would you want to? Whether it would fog film is something else...
01-12-2011, 09:59 AM   #3
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No IR support light will ruin the film
01-12-2011, 11:43 AM   #4
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Overkill much? I would just advise practice. I find a change bag is pretty handy so you don't have to be in complete darkness. Once you've done it a few dozen times, it's fairly easy.

01-12-2011, 11:50 AM   #5
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QuoteOriginally posted by Nachodog Quote
Overkill much? I would just advise practice. I find a change bag is pretty handy so you don't have to be in complete darkness. Once you've done it a few dozen times, it's fairly easy.
Yeah, just get the bag. It isn't very hard when you aren't in the dark, and that thing you misplaced is a lump over there.
01-12-2011, 03:17 PM   #6
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Film labs use or have used them to monitor the film process, but if you're having that much trouble, just get the plastic reels that automatically ratchet the film toward the center from the outside. As long as you rinse them well, the ball bearings don't gum up and they'll probably last longer than you can buy film. Lot cheaper and less dorky than goggles, too.
01-12-2011, 06:11 PM   #7
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QuoteOriginally posted by i83N Quote
No IR support light will ruin the film
Maybe, maybe not. Film generally isn't sensitive to IR (IR films being the exception.
We did use scopes like that in the industrial darkrooms when we had to troubleshoot machines that had decided to eat exposed but not developed film.
01-12-2011, 09:58 PM   #8
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They use a similar device in the processing room at Dwayne's in Kansas. I saw it in the NY Times photo essay on the last days for Kodachrome.


Steve

01-15-2011, 01:10 PM   #9
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The near end of the infrared spectrum starts at around 700nm wavelengths. I don't know what IR division that device operates in but just look Spectral Sensitivity Curve for the film in question on the data sheet and see where it falls off.

A few examples of film sensitivity fall off:

100TMX: ~700nm
HP5+: ~650nm
400TX: ~650nm
Ektar 100: ~700nm (cyan layer)
01-17-2011, 09:04 AM   #10
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The IR beam can be turned off.
I couldn't find the frequency...
01-17-2011, 08:55 PM   #11
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Technology can solve many problems, but not all problems need to be solved with technology! Take a roll of film, unexposed, and waste it. USe it as a practice roll and teach yourself the best way to load the reel. Once you can do it while looking at it, keep doing it without looking at it. Then do it with your eyes closed. If you can do it two or three times with your eyes closed, you are ready to do it in a changing bag.

I would recommend a changing bag as you can't misplace anything, just make certain you put it in there! And include a film can, the opaque plastic type. If after you get the film out of the cassette and you have trouble, you can roll it back up tight and put it in the film can to see what is happening in the light (with the reel, not the film).

I could get my adult students loading plastic reels in about 30 minutes with this technique. Good luck!
01-19-2011, 04:25 PM   #12
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Thank you, I do that since 1975...
01-19-2011, 06:32 PM   #13
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I did a little digging and found typical short range infrared illuminator used in night viewing devices are based on IR LEDs that come in a choice of 850nm to 940nm wavelengths. And apparently if you can see a soft, dim red glow from the illuminator, it is 850nm where a 940nm is invisible. If that is the case for your device, I'd say you pretty safe to use one of those. You could always write the manufacture and ask.

Last edited by tuco; 01-19-2011 at 09:50 PM.
01-20-2011, 01:18 AM   #14
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Thank you Tuco !
01-20-2011, 11:32 AM   #15
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Some people use those for developing large format by inspection or brush. Ken Lee, over at the large format photography forum uses them, for example.

edit: link -> http://www.largeformatphotography.info/forum/showthread.php?t=36670

Last edited by Vertex Ninja; 01-20-2011 at 02:03 PM.
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