Infrared film challenge

FujiLove

FujiLove

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I've got three rolls of Infrared medium format film going spare. It expired over 20 years ago, so I've no idea if it will be any good, but it has been frozen/refrigerated since new. One roll each to the first three people to PM me. :-)

It's completely free. The only payment is a couple of posts on here if you manage to produce anything interesting.
 
Inbound!
 
Sorry, all three rolls have now been claimed.

Happy shooting and looking forward to see if we can make anything of it. :)
 
BTW - let me know if this thread disappears...it was moved to the 'freebies' section earlier by the admins.

Ta.
 
For the avoidance of any RTMs - it's been agreed that the thread can remain in F&C on the basis that it's a 'challenge' thread along the same lines as the traveling camera threads.
Title also edited accordingly :)

i.e. Gentlemen, we want to see what you can do with that IR film when it arrives :D
(and although I don't really frequent the film section, I'm a lover of IR so I'll be looking out for it with anticipation)
 
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Coincidentally, I got given a load of 135 film today, and one of them was Ektachrome Professional EIR, expired 2003. Unfortunately, the spec sheet says it should be frozen immediately. I'm going to hazard a guess that it's been some years since this saw the inside of a freezer.
 
I've dropped the film in the post this morning, so hopefully it should be with you guys in the next couple of days. Now we just need a few bright sunny days to make the most of the IR.
 
Film received today, thank you very much! Can't make any promises about when I'll use it but it will be quite soon :D
 
Same here - want to use it in the Rolliecord, but I need to put a good film through that first to make sure the seals etc. are in order. Mind you, looks really sunny on Saturday, so may be tempted to go IR!
 
I'm tempted to get out this weekend too, though I'll need to do a bit more reading about the film first. According to references I found through googling, Konica recommend shooting at f/5.6 and 1/60s, though I can't find whether that includes filter factors and it probably doesn't take the age into account. I've found this post from a couple of years ago on APUG where a chap is using 20-year old film and his results at the recommended settings with a red filter are far too dark.

The massive dev chart gives a time of 4.5 minutes in 1:100 Rodinal with the film metered at ISO6, which includes a red filter (not an IR filter). That seems quite a short development time, though that could be because I've only used Rodinal in 1:100 for stand developing. Does anyone have experience with other IR film and can advise?

So, how should I rate it? I'm tempted to use my red filter and rate it at ISO5, possibly bracketing with an ND filter. Any thoughts?
 
Strappy said:
I'm tempted to get out this weekend too, though I'll need to do a bit more reading about the film first. According to references I found through googling, Konica recommend shooting at f/5.6 and 1/60s, though I can't find whether that includes filter factors and it probably doesn't take the age into account. I've found this post from a couple of years ago on APUG where a chap is using 20-year old film and his results at the recommended settings with a red filter are far too dark.

The massive dev chart gives a time of 4.5 minutes in 1:100 Rodinal with the film metered at ISO6, which includes a red filter (not an IR filter). That seems quite a short development time, though that could be because I've only used Rodinal in 1:100 for stand developing. Does anyone have experience with other IR film and can advise?

So, how should I rate it? I'm tempted to use my red filter and rate it at ISO5, possibly bracketing with an ND filter. Any thoughts?
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I got my roll today, but don't know when I'll be able to shoot it as the old camera that I found in the loft turns out to be 127 (I thought it was 120) so I've stuck it in the freezer now until I have a camera that I can shoot it through.

If your using a standard red filter (not IR) then I would meter it at about ISO 8 to 12 as the standard speed of the film (without filter) according to the datasheet is 32 and a red filter normally absorbs about a stop and a half. The Konica f5.6 1/60th assumes a standard red Wratten 25 filter.

Based on the times for the other dilutions of Rodinal in the massive dev chart I think the 1:100 listing is probably a mistake as 4.5 minutes seems way too short, I would go with the 1:75 or 1:50 time listed.

There are some examples of it with a various red filters at http://www.digitaltruth.com/products/product_tests/infrared_film_004.php and http://www.digitaltruth.com/products/product_tests/infrared_film_004-2.php. The R25 examples are those with a standard non-IR red filter.
 
The expired EIR I had recommended loading and unloading the camera in the dark. Is that the case with all IR film, do you know?
 
abdoujaparov said:
The expired EIR I had recommended loading and unloading the camera in the dark. Is that the case with all IR film, do you know?
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Most older IR films like HIE and EIR lacked an anti-halation layer so you had to load them in complete darkness to prevent light-piping. Newer IR films such as Konica IR750, EFKE IR820, Rollei IR400 etc can be loaded in subdued light as they have an anti-halation layer.
 
Thank you :)

For the sake of clarity (and my being hard of thinking), should I take off a stop for each decade of the film's age from your estimate of ISO8-12 or will it be OK as it's been frozen?
 
Strappy said:
Thank you :)

For the sake of clarity (and my being hard of thinking), should I take off a stop for each decade of the film's age from your estimate of ISO8-12 or will it be OK as it's been frozen?
Click to expand...

I think that 8 to 12 should be fine as Konica recommends using it at 32 for normal (no filter) photography, but it seems that a lot of the past users tended to rate it at 50 or 64 when using a filter so about 8 - 12 should still be in the right range.
 
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