Rollei Infrared 400 Black and White Negative Film (35mm Roll Film, 36 Exposures, 2 Pack)

BH #ROIR362 • MFR #81040122
Rollei
Rollei Infrared 400 Black and White Negative Film (35mm Roll Film, 36 Exposures, 2 Pack)

2

Pieces

Key Features
  • IR-Sensitive Panchromatic B&W Neg. Film
  • ISO 400/27° without Filtration
  • Infrared Sensitivity Up to 820nm
  • Very Wide Exposure Latitude
Rollei/Agfa's Infrared 400 is a unique infrared-sensitized panchromatic black and white negative film with a nominal sensitivity of ISO 400/27° without filtration. It is sensitive to IR wavelengths up to 820nm and can be used to produce unique halation effects with filtration and by varying the exposure length. It is suitable for working in both daylight and tungsten conditions and is characterized by a fine grain structure, notable sharpness, and high resolving power. Additionally, a good contrast profile offers clear separation between shadow and highlight regions. The film's polyester base has been tested to an LE-500 (life expectancy 500 years) archival rating and also features anti-curling and anti-static coatings, as well as a special coating to promote smooth film transportation within the camera. Additionally, this clear base is particularly well-suited to scanning applications.
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Rollei 81040122 Overview

Rollei/Agfa's Infrared 400 is a unique infrared-sensitized panchromatic black and white negative film with a nominal sensitivity of ISO 400/27° without filtration. It is sensitive to IR wavelengths up to 820nm and can be used to produce unique halation effects with filtration and by varying the exposure length. It is suitable for working in both daylight and tungsten conditions and is characterized by a fine grain structure, notable sharpness, and high resolving power. Additionally, a good contrast profile offers clear separation between shadow and highlight regions. The film's polyester base has been tested to an LE-500 (life expectancy 500 years) archival rating and also features anti-curling and anti-static coatings, as well as a special coating to promote smooth film transportation within the camera. Additionally, this clear base is particularly well-suited to scanning applications.

This item contains two 36-exposure rolls of 35mm film.

Rollei 81040122 Specs

Film TypeInfrared-sensitive panchromatic black and white negative film
Film Format35 mm (36 exposures)
SensitivityISO 400/27° without filtration
ProcessStandard black and white chemistry
Must be handled in complete darkness
Base100 µ-thick clear polyester base
GranularityRMS x 1000: 11.0
Resolution160 lines/mm
1000:1 contrast
Packaging Info
Package Weight0.05 lb
Box Dimensions (LxWxH)2.2 x 1.7 x 1.4"
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question

What's the effective speed, when using an IR pass filter?
Asked by: Anonymous
The manufacturer rates the film at ISO 25 for RG645, FG665 (Wratten 89B) or RG715 (Wratten 87C) filters.This is probably about right for noon in Death Valley on the 4th of July. Anywhere else, your shutter time will be greater than one second and so reciprocity failure means the relationship between EV and exposure isn't linear, and so can't be represented by a single number. In other words: there is no ISO film speed. Also, if you don't have a light meter that measures IR, speed ratings are useless.. With IR pass filters in most situations, correct exposure has to be determined by trial and error. So bracket every shot at least two stops each way. At about 4:00 pm on a cool day, the right exposure (with a Lee #87 filter -- 730 nm cutoff) was ONE MINUTE. It's best to shoot your first roll on a bright, warm day.
Answered by: Mark R.
Date published: 2018-08-28

question

Do you have any developing times & tempertures for this film? I could not find any on your website.
Asked by: Anonymous
The ROLLEI Infrared ISO 400 film has no real anti-halo-layer, or better said, the anti-halo-layer is included in the emulsion. Therefore, it is recommendable, to do at least a pre-soaking of a minimum of 30 seconds. If you are using D76 developer, at 20 degrees Celsius, the developing time will be 6 minutes. For the further processing, the stop bath, fixing bath and watering, the process is the same as for all conventional B&W films. Further processing instructions for this film can be found at the following link: http://bit.ly/1zqccxk
Answered by: Heather S.
Date published: 2018-08-28

question

The product highlights say that this film is rated to 820nm, but under the specifications the film is rated to 720nm. I'm confused at to which one the film is rated to. Thank you!
Asked by: Anonymous
According to the Specifications sheet from Rollei, the film is rated up to 820nm. http://bit.ly/YBntv7
Answered by: Manzell L.
Date published: 2018-08-28
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