Post your Infrared Photographs here

Sirius Glass · Mar 29, 2021

Post your Infrared photographs here. I have taken them for years but this inspired me to start a thread so people could show off their great work.

GLS said:
Hasselblad 501CM, Distagon 4/50 CFi, Rollei IR400, Hoya R72, DD-X, split-toned.

Truzi · Mar 29, 2021

Sirius, I came to this site primarily to learn, so haven't looked at the Galleries very often, thus I really can't comment on how active they are.

However, your threads encouraging people to post photos are quite active - I feel they contribute positively to the site.
These, and the "New Old Camera" thread, are the only ones I never fail to view.

GLS · Mar 29, 2021

OK. Here are some more of mine (all created with the Hasselblad and Rollei IR400).

Sirius Glass · Mar 29, 2021

I loved HIE, but after it disappeared I tried several other Infrared films. I like the Rollei IR 400 the best and I use the R25, R29 and 720 filters the best with it. The R23 is a little too weak for IR film, but it darkens the sky without turning it black that the R25 for panchromatic films and is stronger than the Orange filters.

Andrew O'Neill · Mar 29, 2021

120 SFX. 72R filter.

Maris · Mar 29, 2021

Noosa River from Gympie Tce. infrared
Gelatin-silver photograph on Ilford Classic VC FB photographic paper, image size 16.3cm X 16.3cm, from a Rollei Infrared negative exposed in a Seagull TLR fitted with a IR720 filter.

markjwyatt · Mar 29, 2021

These from this weekend. A roll from the batch I just bought here. Mamiya C330f; various lenses; 720 nm filter. Treat as ISO 6 w/filter. Dev. HC110 B, 6 minutes @ 20C.

Potted Plant by Mark Wyatt, on Flickr

spring by Mark Wyatt, on Flickr

Black and White, and Sky by Mark Wyatt, on Flickr

markjwyatt · Mar 29, 2021

Here are some from decades ago (Kodak HIE).

mystical man by Mark Wyatt, on Flickr

Mariah by Mark Wyatt, on Flickr

curve by Mark Wyatt, on Flickr

BAC1967 · Mar 30, 2021

How about some color IR. Zenza Bronica ETRSi expired Kodak Aerochrome film, Yellow filter.

High Desert Farm House by Bryan Chernick, on Flickr

Palouse Wheat and Windmill by Bryan Chernick, on Flickr

Renato Tonelli · Mar 30, 2021

Wow! Beautiful work everyone.
Insipiring me to load up some of that HIE that I have been hoarding.

BainDarret · Mar 30, 2021

An Infrared Ektachrome from the early 80s and a more recent Rollei IR 400 from the Carp Fair.

markjwyatt · Mar 30, 2021

BainDarret said:
An Infrared Ektachrome from the early 80s and a more recent Rollei IR 400 from the Carp Fair...View attachment 271034

Are you using a 25A with the Rollei IR? R72 or equiv. would make it very difficult to stop action.

BainDarret · Mar 30, 2021

markjwyatt said:
Are you using a 25A with the Rollei IR? R72 or equiv. would make it very difficult to stop action.

I use an R72 with the Rollei IR 400. My exposure with this combo is typically F/6.3 at 1/60th in full sun. I use a Fuji GS645W for IR these days.

markjwyatt · Mar 30, 2021

BainDarret said:
I use an R72 with the Rollei IR 400. My exposure with this combo is typically F/6.3 at 1/60th in full sun. I use a Fuji GS645W for IR these days.

Ok, I was typically f11 @ 1/8th of a second. So maybe stop and a half different. I was going for DOF, but since I am finding focus is not an issue (I did not use any IR focus mark/adjustment, which is not present on the C330f anyway), next time I can open up more.

Sirius Glass · Mar 30, 2021

Sirius Glass said:
I loved HIE, but after it disappeared I tried several other Infrared films. I like the Rollei IR 400 the best and I use the R25, R29 and 720 filters the best with it. The R23 is a little too weak for IR film, but it darkens the sky without turning it black that the R25 for panchromatic films and is stronger than the Orange filters.

I use the box speed for the light meter and adjust for the filter factor.

markjwyatt · Mar 30, 2021

Sirius Glass said:
I use the box speed for the light meter and adjust for the filter factor.

I have been using an effective ISO of 6 with the 720nm filter on. To Sunny 16, it may be more like ISO 16 (i.e., f11 at 1/8th). So somewhere in that range. What is the filter factor? 20? not sure a filter factor is really accurate (nor is my guessing).

pbromaghin · Mar 30, 2021

Does Ilford SFX count?

Andrew O'Neill · Mar 30, 2021

pbromaghin said:
Does Ilford SFX count?

I would think so!

markjwyatt · Mar 30, 2021

pbromaghin said:
Does Ilford SFX count?

I would think so...
I would think so...
I would think so....

I was echoing @Andrew ONeil's reply

Andrew O'Neill · Mar 30, 2021

MattKing · Mar 30, 2021

The same scene, on SFX, photographed with my C330 metered at box speed without filter, and with R72 filter and two different exposures - six stops more and nine stops more.

and two more scenes with from the same location, on the same roll, with the R72 filter and appropriate exposure adjustments:

Sirius Glass · Mar 30, 2021

pbromaghin said:
Does Ilford SFX count?

Yes but the Wood effect is better with Rollei IR 400.

Sirius Glass · Mar 30, 2021

markjwyatt said:
I have been using an effective ISO of 6 with the 720nm filter on. To Sunny 16, it may be more like ISO 16 (i.e., f11 at 1/8th). So somewhere in that range. What is the filter factor? 20? not sure a filter factor is really accurate (nor is my guessing).

Using box speed, taking a light reading and adjusting for the filter factor is more accurate that arbitrarily setting an effective ISO. Filter factors are supplied by the manufacturer, who actually know what they are doing, not like the random number pulled out of the air, guessing, without any knowledge.

R23 filter factor 2
R25 filter factor 3
R29 filter factor 4
720 aka 72R filter factor 5

GLS · Mar 30, 2021

Sirius Glass said:
720 aka 72R filter factor 5

My testing of Rollei IR400 tends to bear this out, i.e. I use EI 12 with an R72 filter.

Of course the IR intensity will vary depending on elevation, time of year, cloud cover and so on, so if in doubt bracket.

markjwyatt · Mar 30, 2021

Sirius Glass said:
Using box speed, taking a light reading and adjusting for the filter factor is more accurate that arbitrarily setting an effective ISO. Filter factors are supplied by the manufacturer, who actually know what they are doing, not like the random number pulled out of the air, guessing, without any knowledge....

...720 aka 72R filter factor 5

filter factor =5 (25 A = 8 filter factor) or 5 stops = 32 filter factor? What I used is effectively to 6 or 7 stops (or 64-128 filter factor). I am not finding R72 filter factors on Hoya or any websites. I found one unofficial listing of filter factor=20 to 40 .

I did not make this up, but checked to see what worked with other photographers on Photrio and Flickr, and back calculated filter factors as a check. It made sense that the filter factor for R72 should be higher than 25A, I think. I just found it easier to use effective ISO around 6-16 with the filter on. You end up in a very similar place.

In this image, I did lose a little in the highlights, but also in the shadows and the flat black fence (not surprising). The normal parts of the image (i.e., non- vegetative, NIR reflecting) have very normal looking densities. The negatives are not dense (nor thin).

Post your Infrared Photographs here

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