Rollei Retro 400S Black & White 35mm Film 36 Exposuresfrom Rollei Retro 400S Black & White 35mm Film 36 Exposuresis a panchromatic black and white negative film featuring an extended infrared sensitivity within the range of 650-750nm for producing unique halation effects, which can be controlled by exposure. Its nominal speed of ISO 400/27° offers extensive versatility and latitude, which is further complemented by high sharpness, contrast, and acutance. The film's polyester base has been tested to an LE-500 (life expectancy of 500 years) archival rating, and additionally, this clear base is particularly well suited for scanning applications.

This is one roll of 36-exposure 35mm film.

Panchromatic B&W Negative Film    ISO 400/27° in Standard Process    650-750nm Infrared Sensitivity Range    High Sharpness, Good Contrast    Ideal for Scanning Applications    Archival LE-500-Rated Polyester Base

Related Questions and Answers

Q: 1. retro 80 suitable for reversal processing?

A: I have not reverse-processed this film, but the process can be done with virtually any traditional B&W emulsion. I would think that this film would be a very good choice for reversal processing as it is fine grained, has a clear base, and tends to have relatively high contrast.

Q: 2. what's the developing time for this film using Kodak X-tol developer, I used hoya R72 filter

A: I don't know the effective reduction of your filter, but for an effective ASA of 50 a 1+1 dilution at 20 degrees C and a time of 7 1/2 minutes should suffice.

Q: 3. What are the differences between this, the Retro 400s, vs the RPX 400?

A: The main difference is, Rollei Retro 400S Black and White Negative Film (35mm Roll Film, 36 Exposures) is more sensitive to Infrared light. But in most uses you will not see the difference.

Q: 4. If you used an 850 IR filter with this film would you still get an image or would it just block all light?

A: Rollei infrared is only sensitive up to 850nm. So anything that's blocks 850nm and down prob won't produce an image. I use a Hoya 72 filter with this film.

Q: 5. Given that this film is less sensitive to IR light than visible light, what ASA should it be shot at for infrared photography?

A: It depends on the filter you use with the Rollei Infrared 400 Black and White Negative Film (35mm Roll Film, 36 Exposures). Some say, exposing the film at a maximum of ISO 25 and using an R72 dark red infrared filter or deeper infrared filter. Note it takes experimentation and trial and error

Q: 6. The specs say this film has "Extended Infrared Sensitivity". Can you tell me what the wavelength cuttoff is at the upper end? How far into the IR spectrum does this go?

A: Spectral sensitization 380 - 730nm

Q: 7. What is the best filter to use to get full IR results?

A: Kodak used to make a great film called Kodak High Speed Infrared. Using a 25 A red or 87 infra red filter you could get beautiful white leaves on the trees without setting the ISO that low. The Rollei is nice film, but it's not high speed. A #87 filter will give you the most infrared look, but the ISO for the meter readings should be around 25, if not lower. Shoot a test roll and develop it and make sure to bracket at least a full stop in either direction.

Q: 8. Would this film work for IR flash photography at night with an infrared flash?

A: Rollei Infrared 400 Black and White Negative Film (35mm Roll Film, 36 Exposures) is suitable for night photography with an infrared flash.

Q: 9. Many people are saying that they're using a r72 IR filter. Why do you need this if the film is sensitive to only IR?

A: To get the full effect if IR, a filter is needed, that has always been the case. A deep red filter enhances the infrared effect.

Q: 10. My camera does not have ISO 80 as an option. I'm shooting with the Minolta XE-5 which goes right from 60 to 125. Whats an ideal way to handle this situation if I want to experiment with this film?

A: Your camera does have the option of selecting ISO 80. You are looking at the shutter-speed dial. Consult your user's manual to find how to select the ISO.