IR-Filters : LUSENET : Large format photography : One Thread

hi does anybody has experience (or links) about the different IR-Filters ?? I'm not into it, but might be interesting to me. Thanks, montespluga

-- montespluga (, April 22, 2001


You can give this a try for a starting point.

-- Robert Pellegrino (, April 22, 2001.

thanks Bob

did you made experience with it ?? As I understand IR-Photography, it does bring some new features, meanwhile its a bit tricky: Am I wrong ?? My intention would be using it for architectual photography. regards: montespluga

-- montespluga (, April 22, 2001.

I have done some work with IR filters and Ilford SFX. SFX is a near infrared film i.e. extended red sensitivity range towards the IR. When you use an IR filter that does not pass visible light, you'll need to experiment with numerous levels of exposure. You will find that most true IR films do NOT carry an ISO rating; it is a trial and error affair at first. As I use an Arca-Swiss 6x9 with roll film, the multiple exposure tasks are a bit more convenient than with sheet film. You might want to give the SFX film a try without an IR filter it is rated at 200 ISO and provides results similar to HP4 Plus. Standard red filters for black and white film, will produce a more intensified filter result than would be the case with standard pan film. You can then work into using the various IR filters and compare the results on a single subject. As I said before roll film does help simplify this process, you can take a baseline shot on frame 1 with no filter and normal metered exposure at ISO 200 then work into the various filters and exposures on the same roll. I hope this helps.

-- Robert Pellegrino (, April 22, 2001.


I worked not so much but sometimes with IR up to now almost in 35 mm but the problems are quite similar. But last year I sold the last 10 paks 4x5 inch Kodak IR thad arrived in Swiss! So I did in autum the first test with the 4x5es! So it worked fine but I not finished with all my testings! Some rules I think it is good with these films: 1. Film loading in total darkness a lamp in a room should be cooled down bevor you loading the film. 2.Take not old filmholders take the newest 3. If possible stay in the shaddow with the camera if not take the black focussing clothes or a jacket espesially when you move the darkslide out of the holder! And for the filter the 092 B+W (89B) is very good but expensive the Hoya R72 is cheaper and the hase same effect!

-- Armin Seeholzer (, April 22, 2001.

Check out the Infared Mailing List at; tm#12910

-- Gene Crumpler (, April 22, 2001.

Try this link and the links you will find thereon:

The only available LF IR film is made by Maco and doesn't go as deeply into the IR as the former Kodak product. To get a dramatic IR effect of white vegatation (the Wood effect) you will need to use a filter that is almost or completely opaque to visible light. One example is the B+W filter 092, which cutoffs wavelengths below about 680 to 710 nm. Maco has a table of filter recomendations:

-- Michael Briggs (, April 22, 2001.

Thanks a lot. It's so much material that it takes to me a while to study it. As a little information: which was the best source I did find. (Big manual) montespluga

-- montespluga (, April 23, 2001.

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