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Astrum IR B+W Negative, or IR-200

St Ives - UK

A
St Ives - UK

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Across the Liffey

H
Across the Liffey

  • Tel
  • Feb 25, 2026
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This thread has reminded me that I have some 35mm IR film in my fridge salad draw. I'm waiting for some constant sunshine here in the UK before using it... It might be a while... :smile:

I love the tones in your images, but I actually prefer the ISO 12 images, but then I do prefer darker prints and the others could be printed that way.

As for exposure, when I've used it in the past with my Pentax MZ5N 35mm camera, I exposed with the IR filter on the lens used and bracketed the exposures over 2f's in 1/2f stop increments. Surprisingly the cameras meter did really well and I got a good set of negatives.

But on both film and digital exposures, I never used the IR red line on the lens, but used a middle f-stop of about f8 to be on the safe side. The red line was only slightly different than the 'normal' focus mark on the lenses anyway.

Terry S
UK
I would love to print this image so much in my darkroom:
IMG_4231.jpeg


Unfortunately, I don’t have an enlarger lens that covers 6x7. But at some point I definitely plan to.

It looks absolutely stunning, one of my favorite shots I think I’ve ever taken!
 
Great picture! Love that circular cloud in the corner.
 
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