Efke 820IR

[Joe Forks]

I don't know if this is old news or not, but I'm posting it anyway.

A quote from the Freestyle Web site:

Freestyle has partnered with Fotokemika to bring you Efke IR820 (true infrared) film in multiple formats!

This is the exact same formulation you knew as Maco IR820c Precision Infrared film. It has a spectral sensitivity up to 820nm and available in a variety of formats including 35mm, 120 size, 127 size, 4x5, 5x7 and 8x10.

When used with filters that are deep to opaque red it is effective in creating scenes where foliage and clouds are pure-white, while water and blue sky is coal black.

Warm skin tones and lips will appear white. It has infrared spectral sensitivity up to 820nm.

[vinny]

It's been out for a few weeks but it's already out of stock in 4x5 and 8x10 in 25 sheet boxes.

vinny

[Brian C. Miller]

Have you used Ilford SFX200? The pictures look the same. As long as Ilford is producing SFX, I'm not touching Efke/Maco/whatever.

[Jan Pedersen]

Ilfords SFX200 don't come in sheets and does not really get into the IR like the Efke IR film does.

[Brian C. Miller]

What filter did you use with Efke IR?

[Andrew O'Neill]

Well, that's good news. I'll have to try some.

[Joe Forks]

It's been out for a few weeks but it's already out of stock in 4x5 and 8x10 in 25 sheet boxes.

vinny

That's what I was afraid of, because that is what I ordered right before I posted this! Typical of my luck. I Haven't heard from them yet regarding my order last night.

Best
Joe

[Marco Annaratone]

I have used the Maco IR 820c for many years.

IF (all capital...) the formulation is indeed the same the Efke 820ir can be developed in XTOL 1+1 13 minutes at 20 C with abundant prewash. Best is to use a dark red 89B filter. DO NOT USE a true infrared filter like 87C. The film dies after 820nm, the 87C wakes up after 1000nm...you get the picture (pun intended: actually, you won't get the picture). Sensitivity depends on amount of infrared radiation, but with the 89B filter on is anywhere --- in a sunny day --- between 2 and 8 ASA.

Cheers!

[Joe Forks]

I have used the Maco IR 820c for many years.

IF (all capital...) the formulation is indeed the same the Efke 820ir can be developed in XTOL 1+1 13 minutes at 20 C with abundant prewash. Best is to use a dark red 89B filter. DO NOT USE a true infrared filter like 87C. The film dies after 820nm, the 87C wakes up after 1000nm...you get the picture (pun intended: actually, you won't get the picture). Sensitivity depends on amount of infrared radiation, but with the 89B filter on is anywhere --- in a sunny day --- between 2 and 8 ASA.

Cheers!

Hoya R72 should be fine for this film, correct? If I am reading this chart correctly http://www.hoyaoptics.com/pdf/R72.pdf

[Marco Annaratone]

The 89B cuts above 650nm, the Hoya R72 above 720nm. Both will work fine with the Efke. The former will simply capture a bit more 'deep red' radiation than the latter, it's a matter of taste. I tend to tread lightly on the IR 'look' because I believe it bores the viewer after a while if it's "in your face" too much, so my personal preference goes to the 89B.