Are there still any film stock available for B&W IR? Either in 35mm or 120 format. I am looking at the current catalog at freestyle and it seems its Ilford SFX and some Rollei products, which are extended red sensitivity. I admit I am not sure if they are they same. I do have the staple red 25 filter and a wratten 29 filter, but do I need something like a hoya r72 to use these films? I want to give this a try as I have never tried these kind of film stock before. Thank you.
Don't go spending a fortune on a Hoya infrared filter, get one from SRB Photographic instead; they're much cheaper but brilliant quality (and no, I don't work for themAre there still any film stock available for B&W IR? Either in 35mm or 120 format. I am looking at the current catalog at freestyle and it seems its Ilford SFX and some Rollei products, which are extended red sensitivity. I admit I am not sure if they are they same. I do have the staple red 25 filter and a wratten 29 filter, but do I need something like a hoya r72 to use these films? I want to give this a try as I have never tried these kind of film stock before. Thank you.
I searched the web and found comparative photographs for multiple IR films using R23, R25, R29 and 720 filters. I then tried several films and I found that I got the best results with Rollei IR 400 with either R29 or 720 filters. I like the 720 filter better but since one cannot see through it one must use a tripod. So far I have only used Rollei IR 400 film in 120. The only thing that is better for black & white IR film is HIE which if one can find it only comes in 35mm.
Ilford SFX.
Three different exposures of the same scene - one without a filter and metered at 200, one with an R72 filter and exposed at six (6) stops more than the unfiltered one and another with an R72 filter and exposed at nine (9) stops more than the unfiltered one - all to show variations of how much Wood Effect is available:
View attachment 244614
The only thing that is better for black & white IR film is HIE which if one can find it only comes in 35mm.
Nothing was better than HIE, I agree. But it came in sheet film sizes too. I have about 20 sheets of HIE in 8x10 in my stash.
How did you get your hands on 8x10? When I was buying 4x5 in the 90's, Kodak wasn't making any. What's the expiry date?I would have loved to have shot 8x10 HIE. The closest I've come to it is Efke IR 8x10, of which I have about 25 sheets left.
Ilford SFX.
Three different exposures of the same scene - one without a filter and metered at 200, one with an R72 filter and exposed at six (6) stops more than the unfiltered one and another with an R72 filter and exposed at nine (9) stops more than the unfiltered one - all to show variations of how much Wood Effect is available:
View attachment 244614
Rollei IR400 is Aviphot 400. (400 is effective aerial film speed; it's more like 250 ISO.)
Retro 80S is Aviphot 80 (and about 50 ISO). HR50 is the same film, with a preflash to moderate the cotrast.
RPX 25 appears to be Aviphot 40, but I have yet to try it with an IR filter. It's a fabulous film; super sharp and very fine grained. And the box speed us about right, for a change!
I bought some expired Konica IR from someone on this forum, really great film. This is with a red filter.
Bishop Hall by Bryan Chernick, on Flickr
Kinkaku-ji by Bryan Chernick, on Flickr
Paul what if anything could you see with a SRB IR filter on the camera and what was the best speed to use the SFX at?View attachment 244639 View attachment 244640 Ok, managed to upload a couple: Ilford SFX200 through an SRB Photographic infrared filter
Thank you for all the information, the scene I was picturing was some structures in the desert near here, cant wait to try them out. Got a couple of rolls of SFX to try and will get some RPX and rollei too. Does anyone have preferred developer? My only developer is Rodinal. I have been wanting to try something else.
Does anyone have preferred developer? My only developer is Rodinal. I have been wanting to try something else.
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