Metering at ISO 25 seems like a game changer. Thanks for the tip. I'm definitely going to try it. Is it safe to have the IR film normal b+w processed/developed by a lab? Or do you need to have it processed in a special way? Your shots came out great 👍
HI Clem Thanks for your comment and glad the tip will help you. As for processing there are no special requirments as long as you have a good lab to process them. Thanks Jason
The R720 filter’s a bit too strong to use with Rollei IR film, it’s really for the long gone Kodak IR, which was extremely sensitive to IR. Rollei’s more sensitive than Ilford SFX, which is more extended red sensitivity, but not quite as sensitive as Kodak, so you can use a less sensitive filter like an R520, which you can see through a bit on a very bright, sunny day, better for getting the IR effect of near black sky and white foliage.
You have 2 ways to do this. If the film is rated at 400ISO set your light metre to 25ISO take your reading then add your IR filter to the lens then manually set the exposure to what the light metre said. Or you can do the same with it sent to 400ISO and work it out from that. 1/250 at f16 would become 1/250 at 2.8. of you culd change the shutter say 1/125 at f4. I hope this helps.
To save bit of time I use a hand-held light metre. But I have done both in setting the camera to 25ISO then putting the filter on also doing it at 400ISO the taking stops off. I hope this helps.
Lovely images! Thanks for sharing your approach!
Thank You for your kid comment I am glad you like the video
Metering at ISO 25 seems like a game changer. Thanks for the tip. I'm definitely going to try it. Is it safe to have the IR film normal b+w processed/developed by a lab? Or do you need to have it processed in a special way? Your shots came out great 👍
HI Clem Thanks for your comment and glad the tip will help you. As for processing there are no special requirments as long as you have a good lab to process them. Thanks Jason
Great video. Thanks for doing this
Thanks for your comment glad you like the video.
The R720 filter’s a bit too strong to use with Rollei IR film, it’s really for the long gone Kodak IR, which was extremely sensitive to IR. Rollei’s more sensitive than Ilford SFX, which is more extended red sensitivity, but not quite as sensitive as Kodak, so you can use a less sensitive filter like an R520, which you can see through a bit on a very bright, sunny day, better for getting the IR effect of near black sky and white foliage.
Darren thanks for your comment and information. I have not used SFX for years so will have another go at some point and do another video.
Thank you! So much. I’m using ilford’s SPX 200. What would you recommend I set the ISO to?
HI I guess you mean SFX 200. I would just use a red filter and meter through that at 200ISO.
So if I am shooting at f16 at 1/250 how do I over expose 5 stops? I too have an Olympus
You have 2 ways to do this. If the film is rated at 400ISO set your light metre to 25ISO take your reading then add your IR filter to the lens then manually set the exposure to what the light metre said. Or you can do the same with it sent to 400ISO and work it out from that. 1/250 at f16 would become 1/250 at 2.8. of you culd change the shutter say 1/125 at f4. I hope this helps.
Do you still switch to 25ISO when metering TTL with the filter on?
To save bit of time I use a hand-held light metre. But I have done both in setting the camera to 25ISO then putting the filter on also doing it at 400ISO the taking stops off. I hope this helps.
Apparently red filter 29 and polariser will give you good results.I think that's what the late Simon Marsden used.
Thanks for your comment. I used a red filter years ago. I am getting some more film and have a red filter and see what the difference is 👍
Precise exposure must not matter that much, since from ISO 400 to ISO 25 is 4 stops, not 5. Maybe the hot day added a stop of exposure.
Thanks for your comment and information.