How will the IR cut filter affect regular color film? If I put the filter on the lens for the M8 I certainly dont want to be removing it for film.
IR Filter and film
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Sailor Ted
Well-known
? 😕
egpj
50 Summilux is da DEVIL!
Depends on the spectral sensitivity of the film. Not sure about color films but I do not think it will matter much to B&W. The B+W 486 will trim out light dispersion in the atmosphere though. Should make for some dramatic skies but that is more toward the UV end of the spectrum. Think I'll order one to play with.
jaapv
RFF Sponsoring Member.
Don't - leave some for us please 😉egpj said:
pfogle
Well-known
As as I can see, the filter should act just like an ordinary UV filter, since film isn't sensitive to IR anyway.
egpj
50 Summilux is da DEVIL!
Yep, no one would stand to have magenta casting in their 10.00 dollar throw away camera. That would be outrageous! So they designed film to only be responsive within the visible spectrum. Unless you want the stuff that is for NIR photography.
HenningW
Well-known
Film does not respond the same as human vision
Film does not respond the same as human vision
Pretty well all film has much greater UV sensitivity than your retina. Also, even apart from the UV response, there is no film that has the same spectral response in the visible region as any person's vision, let alone everybodies vision. Films have responses that we have learned to live with and adjust with filters to approximate what we want to see in the final product, nothing else.
Asking a digital sensor to now match human vision out of the box (or in the Leica box) is asking too much. The only problem, of course, is that the spectral response of the Leica sensor sandwich is much greater in a region that we haven't had to deal with very much before.
Henning
Film does not respond the same as human vision
Pretty well all film has much greater UV sensitivity than your retina. Also, even apart from the UV response, there is no film that has the same spectral response in the visible region as any person's vision, let alone everybodies vision. Films have responses that we have learned to live with and adjust with filters to approximate what we want to see in the final product, nothing else.
Asking a digital sensor to now match human vision out of the box (or in the Leica box) is asking too much. The only problem, of course, is that the spectral response of the Leica sensor sandwich is much greater in a region that we haven't had to deal with very much before.
Henning
x-ray
Veteran
Lay the filter on a whote piece of paper and see if there is any color cast. I used to shoot with a DICOMED 4x5 digital scanning back which required the use of an IR filter over the lens. The filter had a cyan color that would certainly have given problems with color film. In those days there were 3 different filters, one for tungsten, one for fluorescent studio lights and one for HMI or daylight. It seems like they were around $400 each.
