Another silly question: Could those ir lamps used for heating be of use in the lab? They emit red light but I dont know if only that or white light also.
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Another silly question: Could those ir lamps used for heating be of use in the lab? They emit red light but I dont know if only that or white light also.
Bounce the light on a cd/dvd surface and see if there are present other colors than red.Quote:
Originally Posted by Eugen Mezei
Why do you not order those:Quote:
Originally Posted by Eugen Mezei
https://www.fotoimpex.com/darkroom/a...oom-light.html
I have them installed in simple IKEA lamps and they work fine. To be sure I illuminate the white ceiling and walls with them only.
Hope this helps.
I see they are good for paper, but I don't see a reference to X-Ray film. Have you tested with film and found them safe?Quote:
Originally Posted by the4x5project
The reason is, I already have the IR lamps. (And can buy more of them locally.) Ordering from Fotoimpex would mean around 30 €.Quote:
Originally Posted by the4x5project
Besides that, I am curious.
I have bought a kit (developer + fixer) for X-ray film. Looking at the chemical composition I see in neither of them a hardener. I thought X-ray film is hardened when developing, either in the developer or at least in the fixer.
I think X-Ray film is just prone to scratches when wet. I doubt hardener in fixer does much good as the film has already been wet in the developer and stop for several minutes. I think being careful with process is better than depending on chemicals.
Still hardener for fixer exist. On the bottle of the Tetenal hardener they even give the time for X-ray film. (They are longer as for normal film.)
Did I have with you the discussion on Flickr? (In the Polypan-F group.) As there were also two posters thinking that the hardening effect dissapears after the film is dry.
I don't use Flicker. I don't say the hardening effect disappears. The film becomes really prone to scratching when wet - thus it can scratch in the developer and stop long before it gets to the fixer. Hardening fixer is fine to use but may not stop scratches.
Yes, I did. Works fine with x-Ray and all things orthochromatic.Quote:
Originally Posted by j.e.simmons