Is this an infrared negative?

[AndreiF]

Hello! This is what is says at the description:
"Another special feature is its extended infrared range up to 750 nm, which can produce creative effects with the appropriate filter."

https://www.macodirect.de/en/film/black-white-films/1865/rollei-superpan-200-35mm-36-exposures?c=617

 

[Svenedin]

I think it would be better called a film with “extended red sensitivity” rather than a true infrared film. The sensitivity of this film does not extend very far into the infrared spectrum.

 

[pentaxuser]

Are there any "IR" films on the market that extend beyond 750nm. Ilford's SFX has about the same extended red sensitivity but certainly manages the IR effect with a R72 filter at the expense of a very low EI. Speeds of between 3 and maximum 12 being quoted . This Rollei Superpan may be as close as any film gets to IR.
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pentaxuser

 

[AndreiF]

Thank you for the answers! I see the Rollei infrared goes "up to 820 nm", is it a big visual difference from 750nm to 820nm?

 

[darkroommike]

Thank you for the answers! I see the Rollei infrared goes "up to 820 nm", is it a big visual difference from 750nm to 820nm?

Quite a bit different, with sensitivity to 820nm you can actually still get an image after filtering out all the visible light. Do this and green foliage will "glow" with the Wood effect, sadly the days this year with green foliage are limited (in the N. Hemisphere). To filter out all the visible light you will need at least a 720nm cut off filter. The old Kodak IR went way, way out to around 900nm. http://125px.com/docs/film/kodak/f13-HIE.pdf

 

[AndreiF]

Thank you for the answer!

 

[BrianVS]

Freestyle states that the Rollei 200 film is based on the discontinued AGFA film:

http://www.gommamag.com/v4/downloads/data/006_page/agfa_other/aviphot_pan200.pdf

Spectral Response Curve certainly shows it is IR sensitive. Most IR film did not extend much farther than the curve shown above.

 

[pentaxuser]

It would be nice if consumers were told by Maco what the differences are: between Rollei 80S; Rollei IR and Superpan which appears to be Aviphot 200. Are all three of the aforementioned Rollei films the same Aviphot 200? This rears its head periodically and there are numerous responses but frankly the more I see, the less clear I am.

I do hope that we are not approaching a kind of "Fake News" in the analogue film world.

pentaxuser

 

[AndreiF]

On that website it is not included at "infrared films" section, but then they give that unclear information about being close to the infrared spectum. Anyway I bought some to test it
I ll let you know