Rollei Infrared

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sdimarino2001
Posts: 2
Joined: Sat Jun 24, 2006 2:50 am
Location: Italy

Rollei Infrared

Post by sdimarino2001 »

hello!

Did anyone try this film? I recently bought some Rollei Infrared Films and I would like knowing how to develop in standard developer such as Rodinal, Tetenal Ultrafin.

At the same time I didn't find any informations about exposure time in relation of light conditions like clear sky, cloudly, etc....

Could you help me?

Thanks

Fotohuis
Posts: 141
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Location: the Netherlands
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Post by Fotohuis »

Here is already a lot of information:

viewtopic.php?t=222&sid=65abf8bf77c3327 ... 362c4512f9

About Rodinal and Rollei IR-400: try 1+25 and start with the prescriped APX400 time.
More data will follow later.

And for some reliable Rollei developer info:
http://www.fotohuisrovo.nl/documentatie ... 0films.pdf

and an article in the Fine Art Foto (German):
http://www.fotohuisrovo.nl/documentatie ... -06(0).pdf
The last one with written permission from the publisher (Hillebrand) and Rollei/Maco. (c) Copyright.
"De enige beperking in je fotografie ben je zelf"

http://www.FotohuisRoVo.nl
http://gallery.fotohuisrovo.nl/

steveb
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Joined: Sun Jun 04, 2006 3:56 am
Location: Buckinghamshire, UK

Post by steveb »

Robert, perhaps you can answer this query, all the documentation I've seen so far indicates the film is rated at ISO 400 with no IR filter, My tests with the 120 Rollei IR film at 400 with no filter show this is correct. This development chart...
Fotohuis wrote: And for some reliable Rollei developer info:
http://www.fotohuisrovo.nl/documentatie ... 0films.pdf
..also indicates ISO 400, but the data on 3 boxes of 4x5 Rollei IR film just purchased differs. This says ISO 200 without filter, ISO 64 with a black filter. Do you know what data is most up to date or accurate?

Fotohuis
Posts: 141
Joined: Fri Sep 16, 2005 12:25 pm
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Post by Fotohuis »

Yes, I have seen that in the recent delivery of the 4X5" sheetfilm on the packing.
A simmular thread: http://www.apug.org/forums/showthread.php?t=28769
in fact with no answer.

It should be the same emulsion but I can test only the 35mm and 120 rollfilm version which both gives the same results.
They also made a mistake in the packing: RI410 was 10 sheets, but all packings are filled with 25 sheets which Rollei has corrected in their price list now.

I will ask some feed back from Rollei/Maco about this issue.

About our development table:
Not so different as published by Rollei/Maco. We can not endorse a full E.I. for R3 from iso 25 till 6400. Yes, with RLS 50-200 and RHS 200-1000 maybe 1600 but already with a high G.
With RHS under E.I. 200 nothing will improve anymore, not more schadow detail and no less grain or so.
It's a very interesting film if you know what you're doing which each depth developer in the right range. Very suitable under tungsten light and low available light level situations.
Also available in sheet film with new much lower prices now due to an increase of their much higher market share in B&W films.
"De enige beperking in je fotografie ben je zelf"

http://www.FotohuisRoVo.nl
http://gallery.fotohuisrovo.nl/

steveb
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Joined: Sun Jun 04, 2006 3:56 am
Location: Buckinghamshire, UK

Post by steveb »

Last night I loaded 10 4x5 sheets into film holders, I'll be exposing some of these later today as a test. I'll develop them later this week and post my results.

Fotohuis
Posts: 141
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Location: the Netherlands
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Post by Fotohuis »

Here is the answer from Rollei/Maco:

Lieber Robert.
Es ist mittlerweile an so vielen unterschiedlichen Stellen zu unterschiedlichsten Zeiten über den I
R 820/400 berichtet, geschrieben worden, dass folgende Info helfen sollte:

MACO schneidet aus jeweils einer Masterrolle sowohl
35mm, 60mm, 70mm, 80mm, 127mm.
Daraus werden dann die verschiedenen Packungen angefertigt.
Es handelt sich daher immer um den IDENTISCHEN FILM, gleichgültig in welcher Darreichungsform.

Der FILM het eine reale und eine Nennempfindlichkeit.
Das ist branchenüblich und wird auch von Ilford und Kodak entsprechend gehandhabt.
NETTO hat der Film mit Standardchemie in Standardzeit 200 ISO.
Bei Entwickler-Zeit-Verlängerungen um jeweils 1/3 pro Blende lässt sich der Film auf 400 bzw. 800 ISO praktisch ohne Qualitätseinbusse einsetzen. Das alles natürlich OHNE Filter.

Wenn aber jetzt Fotografen vom MACO IR820c auf den ROLLEI IR 820/400 umstellen, dann müssen sie um 2 Blenden knapper belichten. Daher= 2 Blenden, Ausgangswert 400 ISO.

Das "Problem" mit den ISO-Werten ist zumeist von theoretischer Natur.
In der Praxis zeigt sich, dass der BELICHTUNGSSPIELRAUM extrem gross ist und eine Blende Über- bzw. Unterbelichtung keine nachhaltigen Auswirkungen auf das bildmässige Resultat hat.

Mit freundlichen Grüssen,
Hartmuth Schroeder
Director of the
MACO PHOTO PRODUCTS
Hans O. Mahn & Co. KG
Brookstieg 4
D-22145 Stapelfeld/Hamburg GERMANY

So all films are from the same masterroll.
In RHS/AM74 this film will reach iso 400. In the standard chemicals (like D76/ID11) the effective iso rate will be around 200. (all without filter)
The exposure latitude of this film is rather high.

Hope to be helpfull with this direct information from Rollei/Maco.
"De enige beperking in je fotografie ben je zelf"

http://www.FotohuisRoVo.nl
http://gallery.fotohuisrovo.nl/

sdimarino2001
Posts: 2
Joined: Sat Jun 24, 2006 2:50 am
Location: Italy

Post by sdimarino2001 »

Hello!

First of all I wanna thank Robert and Steve for your collaboration.

I wanna try to fix some points:
35mm of this film could be exposed at ISO 200 if you develop in standard developer such as D76, ID11 and ...also Ultrafin, Rodinal?
ISO 200 is OK if you don't use filters; I know the exposure latitude of this film is rather high, but I like exposing in the right way. Wht do you think about filter like RED25A?

In the past I used Kodak HIE and it was very simple to expose the film in the right way and also to develop because they provide a lot of information about both processes.

I am amazing that ROLLEI/MACO doesn't provide detailed information about development chart and exposure time under different light conditions such as clear sky, cloudy sky, artificial light, etc.

It's a true limit!!

Kind regards

Stefano

Fotohuis
Posts: 141
Joined: Fri Sep 16, 2005 12:25 pm
Location: the Netherlands
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Post by Fotohuis »

A red filter will not give you any wood effect with the Rollei IR-400 film. You have to use at least 665nm or higher and no IR black filter over 715nm because the sensitivity of this IR-film is going down fast over 750nm. You can see that also in the graphics of the film and if you read the German article in the Fine Art Foto (the other link above) this is confirmed by some tests and users.

HIE is sensitive over 900nm, must be load and unload in total darkness and you have to take care with the development. Further this film is only available in 35mm and very expensive (if you can get it) here in the Netherlands, twice the price of Rollei. A lot of AF and automatic transport cameras are using IR light diodes for the film detection so also these cameras can not be used with HIE at all.

The choice of IR film is very limited since IR820C/IR750C and the Konica IR 750 also disappears from the market.

Some general IR information I found also on the web:
http://www.vividlight.com/Articles/2915.htm
"De enige beperking in je fotografie ben je zelf"

http://www.FotohuisRoVo.nl
http://gallery.fotohuisrovo.nl/

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