Rollei IR400 Development

[djnato10]

I am taking a trip here this coming week to an area with lots of foliage. I will be bringing six rolls of Rollei Infrared 400 film with, it will be my first time shooting this stuff.

I am curious if anyone has experience developing this at home with Tmax Dev? I have the Massive Dev Chart app and there are some times in there but they range from from 7.5 min. to 26 min. This seems like far too drastic of a difference in times to be accurate.

I am certainly no stranger to developing film, I primarily shoot b&w film and develop everything myself. There have been many times that I just needed to take things slow and test different dilutions and times to get things just right. This film is just confusing the hell out of me since I can't seem to find any information beyond the MDC times for Tmax Dev.


Thanks,
NATO

 

[vytasn]

Not Tmax, but I developed Rollei IR 400 in HC-110 last week for 8.75 minutes (Mdev recommendation), dilution B, and everything was good.

 

[J enea]

its supposedly the same film as retro 400s and superpan, so you can use those times as a trial on a roll before doing the whole batch.



I have the best luck with pyro-mc shooting 125 or 160 depending on the scene brightness/contrast

 

[HHPhoto]

Rollei IR 400 = Rollei Retro 400s = Rollei Superpan 200
= Agfa Aviphot Pan 200.
Agfa Aviphot Pan 200 is the original stuff, the original source of all these three different packagings:
http://www.agfa.com/specialty-products/solutions/aerial-photography/aviphot/

The only difference is that Rollei IR 400 in 120 format is converted (cut and spooled) by Harman technology, whereas Retro 400s and Superpan 200 in 120 are converted by Foma (Maco / Rollei-Film does not have any own production or converting capabilities, they are only a distribution company).

Agfa Aviphot Pan 200 as an aerial film has a strong S-shaped characteristic curve. Therefore it is not a real ISO 200/24° film in normal photography / ground applications. The real sensivity is lower, ranging from ISO 50/18° to 160/23° depending on the developer.
For T-Max developer I would start with ISO 100/21° - 125/22° for first tests.

Cheers, Jan