When you look at the data sheets for the IR400 http://www.maco-photo.de/files/images/TA_Rollei_Infrared400_eng.pdf and
Retro 400s http://www.maco-photo.de/files/images/Retro400S_Infrared_aviphot_pan400S_2006_01_09_en.pdf. The shape of the spectral sensitivity graphs is identical and importantly the portion above the 720nm cut of of an IR filter is the same.
I cannot speak for other countries' laws but if the OP is right then I think that there may be an infringement of the Trades Descriptions Act if it uses the same specifications for what may or may not be different products.
pentaxuser
It is down to us, the consumers, to be savvy in our shopping habits.
I know Rollei aren't the greatest company when it comes to being up front about their products, however they do continue to support film use so I'm happy to buy their products. .
I never bought IR 400, but I know that the current version of 400s is Agfa Aviphot pan 200, an aerial film: http://www.agfa.com/docs/sp/aerial/aviphot_pan200_2004-06-15_en.pdf .
It is sold by Maco under the names Superpan 200 and Universal 200 too. Please keep in mind, that it has only 100 ASA in most developers.
> Infrared alongside Aviphot pan400s
This brings in mind what I knew at a time: Aviphot pan 400 is discontinued by Agfa. The older versions of 400s contained this film. To remain the name Aviphot pan was / is sold using the same name.
In my opinion its totally different. On question is open. Does Agfa Aviphot Pan 400S really exist. Maco will tell me.I never bought IR 400, but I know that the current version of 400s is Agfa Aviphot pan 200, an aerial film: http://www.agfa.com/docs/sp/aerial/aviphot_pan200_2004-06-15_en.pdf .
It is sold by Maco under the names Superpan 200 and Universal 200 too. Please keep in mind, that it has only 100 ASA in most developers.
Former versions of 400s was made from other (technical) material.
Aviphot pan works well with a 720 nm IR filter. With the same filter you can use Aviphot Pan 80, a nearly grain free film: http://www.agfa.com/docs/sp/aerial/aviphot_pan80_2004-06-15_en.pdf .
In comparision to Avi 200 it tends to block highlights which requires some arrangments during development. Avi 200 is well tempered and needs not a special development. It's grain is quite smooth for a 100 ASA film.
In my opinion its totally different. On question is open. Does Agfa Aviphot Pan 400S really exist. Maco will tell me.
I have a lot of data-sheet which seem not online.
1. Superpan 80 and superpan 200 seem to be Pan 50 and Pan 150. if i see datasheet i can verify. Super means Contrasty for high altitudes. since its aerial film. Highcontrast color-version is called H100. i still have 70mm. good think about the avicolor films isgood push and pullabily. without losing colors.
2. Pan 200 is the normal Pan 200S is the soft-version.
Only dont know yet if there is really a 400S under Rollei as Retro 400S. Not really IR only extenden spectrum.
There is a True IR 400.
hte different overexposed/underexposed film come from large range these films have e.g. from 100-400 for the 200S. Its not superpan i am sure. they will confirm that. no different names for the same film only brands.
I have 200S PEO 70mm.
There was or is also a Pan 100 but not on film instead on plates up to 13 x18cm 5x7
I have detailed prospectus with aerial shot.
Fomos of Russia once(Still?) produced very good IR-films. i have datasheet. Agfa tested it versus Kodak and came the this conclusion. maybe they bought their technology. They were at photokina.
From old Agfa-site:
Aviphot Pan 200 PE1, PE0 and PE0-AR: Medium speed, fine grain panchromatic film with extended NIR sensitivity for low to medium altitude flights. Average gradient variation between 0.8 and 1.6.
Technical datasheet pdf (707 KB)
Aviphot Pan 400S PE1 (Discontinued) and PE0: High speed, low fog, fine grain panchromatic negative film with extended NIR sensitivity for low to medium altitude flights. Suitable for poor light conditions. Average gradient variation between 0.6 and 1.1
400S if 200 then 200S-i have it. S for soft for low-middle altitudes. 200 for middle-higher.I've done a bit more digging and comparison of data sheets. On the Maco website, which I completely concede may not be accurate, the Rollei IR film looks a lot closer to the Rollei Retro 400s film. As mentioned previously the spectral sensitivity graphs look the same for both. For Rollei Superpan 200 the graph looks quite different although it still has IR sensitivity http://www.maco-photo.de/files/images/Superpan200_aviphot_pan200_2004-06-15_en.pdf.
One give away is in the URL of the IR 400 datasheet includes retro 400s and Infrared alongside Aviphot pan400s which is the Agfa name for this film. maco-photo.de/files/images/Retro400S_Infrared_aviphot_pan400S_2006_01_09_en.pdf. I'm guessing that at least at some point in the past Retro 400 and IR 400 were the same film. If they are different now that will require some testing.
This is interesting, I've hear that the Retro 400s is actually aviphot Pan200 although I don't know why they wouldn't use Aviphot Pan400. I didn't realise that people consider that it is a 100 speed film in reality. Certainly the datasheets online would suggest that this isn't the case. I've used the IR 400 at 400 without a filter and developed in HC-110 for the recommended 8.5 minutes and whilst there was reasonable shadow detail, the mid tones were darker than I would have imagined. I've not printed any of the non-IR images yet but have scanned a few. I guess the test will come when I get in the darkroom.
Agfa Pan 400S YES Near IR so must be Rollei Retro 400S.What do you think from this theory :
Rollei Infrared is simular to Rollei R3
(discontinued some years ago)
with regards
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