Infrared Film Metering- Rollei IR400s/ M7

[aadi]

Hi, I'm planning to shoot Rollei IR400s infrared film on Leica M7. I'll be using B+W 092 filter.

Would it be OK to use the TTL metering with filter on and at box speed (iso 400), or should I do the metering without the filter and compensate later?
Also, none of my lens that take 39mm filter has IR marking on it. I'm guessing it would be ok to adjust the focusing distance to the f/4 or f/5.6 marking?

Soory to sound like such a n00b 😀

 

[Hatchetman]

meter without the filter. put the filter on. add five stops additional exposure. move focus ring 1/16 to 1/8 inch away from infinity. shoot.

 

[aadi]

Thanks for the answer!

 

[f16sunshine]

Does your M7 have the updated IR DX "Reader" ?
If it does your films will be fogged.
You may wish to choose another camera.

In the past I would bracket with Rollei IR and Hoya r72.
iso 50, 25, 12.5..... 25 being the base for exposure.
Your meter, The atmosphere, lens, and filter all have a bearing.
It's fun stuff to work with but needs a bit of flexing to get desired results.

 

[aadi]

Does your M7 have the updated IR DX "Reader" ?
If it does your films will be fogged.
You may wish to choose another camera.

It has the old pin-contact reader fortunately 😀

 

[f16sunshine]

Bingo 😀


10 chars

 

[FM2N]

Hi,
I shot the Rollei Infrared 400s using the M6TTL and a Heliopan RG715 filter. The meter was set to ISO 400 and I metered always with the filter on the lens.
No need for focus adjustments, because as far as I know, focus adjustment is only needed if using Kodak HIR. This film is (or was... ) more IR sensitive than Rollei Infrared 400s.

Neckarhaldenweg Torturm by M6TTL, on Flickr

 

[aadi]

Thanks for the info!

I shot a roll today, and just metered it with the filter on (the shutter speed reading seems well compensated for the filter).

But I didn't know that the focus adjustment is only needed for HIE film! :bang:

EDIT: I saw your Flickr stream. Seems like the film has no issues for Xpan as well? (I heard before Xpan can't shoot IR film because of the IR sensor inside the camera)

Hi,
I shot the Rollei Infrared 400s using the M6TTL and a Heliopan RG715 filter. The meter was set to ISO 400 and I metered always with the filter on the lens.
No need for focus adjustments, because as far as I know, focus adjustment is only needed if using Kodak HIR. This film is (or was... ) more IR sensitive than Rollei Infrared 400s.

Neckarhaldenweg Torturm by M6TTL, on Flickr

 

[FM2N]

Thanks for the info!

I shot a roll today, and just metered it with the filter on (the shutter speed reading seems well compensated for the filter).

But I didn't know that the focus adjustment is only needed for HIE film! :bang:

EDIT: I saw your flickr stream. Seems like the film has no issues for Xpan as well? (I heard before Xpan can't shoot IR film bevause of the IR sensor inside the camera)

As far as I know - common used IR-LEDs emitting infrared light at approximately 900nm. The Rollei Infrared is sensitive to circa 750nm (near infrared).
I think the LEDs used in the M7 and in the XPan are more or less the same, so the Rollei Infrared could not be fogged by the LEDs.
But the Kodak HIE is sensitive to at least 1000nm, so the IR-LEDs cause fogging. Maybe the HIR sensivity is the reason for the statement that the LEDs cause fogging?

 

[Moogie77]

Hi everybody,

I have similar challenge.

I would like to shoot infrared and planned to use the following combination:
Leica M6 (classic), CV 35mm color-skopar, Rollei Infrared 400S, Leica HOOET 13126 D Infrared-Filter. Alternatively I would also have a light red filter available. HC-110 developer.
I'd like to shoot in bright sun, forest with light coming through and also give night shots a try.

Do you have any recommendations for the f-stop, shutter speed, ...

Wish you all nice Sunday.

Thanks and best regards, Miguel

 

[Bob Michaels]

Hi, I'm planning to shoot Rollei IR400s infrared film on Leica M7. I'll be using B+W 092 filter.

Would it be OK to use the TTL metering with filter on and at box speed (iso 400), or should I do the metering without the filter and compensate later?
.......

I have no experience with the Rollei film but I used to shoot much infrared film, Kodak HEI and the same emulsion in 70mm which was Aerographic 2424. I always used a 25A (red) filter as that best with that emulsion to give me the results I wanted. Of course, you may decide on a different filter with the Rollei film. I did a lot of testing, much bracketing, much note taking, much analysis and my conclusions may be applicable to your situation.

Using a standard light meter that measures visible, not IR, light, the EI adjustment varied quite a bit. I concluded that I need to apply what ever adjustment was necessary to adjust my meter reading to f11 @ 1/250th. So I quit using the meter and just shot f11 @ 1/250th with eyeball adjustments for subject luminance. Now I am sure your exposure will differ. But I bet you will eventually learn not to try to meter IR exposure with a light meter that reads visible light but will settle on a standard exposure.

Also, you will eventually tire of working to have light colored foliage and dark skies with bright white clouds. Many who shoot much IR film tire of that "one trick pony" concept. But if you think broadly, it will have many other artistic uses. I loved it IR film for nudes, especially older women as it hid many of the effects of father time.

 

[nikonosguy]

ok... I've done some ir... i shot this first photo on kodak hie, bessa r2, summarit, leica ir filter:

fortunately, the M 8 can, with the proper filters yield almost the same effect with almost zero work, and post...

and i have one roll of the hie, a few rolls of the rollei, and one roll of eir ektachrome color infrared... will be shooting those soon... but the real catcher is using the m8 as a color infrared camera...

 

[Moto-Uno]

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Would love some info , these were just shot on Rollie IR400 film , using a 720 filter and exposed at ISO 12 , which I developed in HC110 dil b for the time on the Massive Dev chart . And although the IR bloom ( Wood ) effect may be a "one trick pony" , it's the effect I want and don't seem to have gotten on these pics . If anything they only
look overexposed to me .( It was a bright sunny day ) Was I using the wrong subject matter ? Any suggestions ? I only have a couple more rolls . Thanks , Peter

 

[Moto-Uno]

 

[Moto-Uno]

And the last one, Peter

 

[aadi]

For what it's worth, here's a comparison of the Rollei IR400s film, without any filter and with B+W 092 filter. Both shot at box speed on aperture-priority mode on the M7. This was shot during fall last year, there was hardly ant green leaves left.

Pardon the light leak on the first image; it was frame 00 😎

 

[Moogie77]

Somebody has any idea for my challenge?

Hi everybody,

I have similar challenge.

I would like to shoot infrared and planned to use the following combination:
Leica M6 (classic), CV 35mm color-skopar, Rollei Infrared 400S, Leica HOOET 13126 D Infrared-Filter. Alternatively I would also have a light red filter available. HC-110 developer.
I'd like to shoot in bright sun, forest with light coming through and also give night shots a try.

Do you have any recommendations for the f-stop, shutter speed, ...

Wish you all nice Sunday.

Thanks and best regards, Miguel

 

[Ronald M]

I used to just read through the lens with the filter on. Calibrate the film speed so you get good exposures. I do not remember exactly, but I used Kodak HSI + 092 at something less than 400 . I never bracketed with the M6.

While running the test, find the proper focus point for IR with your lens for that film and filter. A nice picket fence at 45 deg angle will easily show where you are actually focusing.
Mark the fence where you actually focus.

 

[Moogie77]

Hi Ronald,

Thanks for your explanation. I will try that.

Hope the leica filter is not too dark and I can still measure through it.

Miguel

 

[Moto-Uno]

I'm hoping to pique the interest of any member that's used Rollie IR 400 film specifically . The bloom effect I've failed at getting when I used a 720 filter and exposed
at ASA 12 and developed in HC-110 . Any suggestions on your experiences that produce this would be much appreciated . Peter

I'm using it in 120 format in my GL690