Characterized by a unique dual emulsion design, Bergger Pancro 400 B&W Film 8x10 25 Sheetsis a high-speed panchromatic black and white negative film featuring a nominal sensitivity of ISO 400/27° and a wide exposure latitude. By employing both silver bromide and silver iodide emulsion layers, an organic grain structure is provided that results in natural tonal gradations and an overall fine grain quality for high-resolution, well-detailed results in a variety of lighting conditions. The film is coated on an anti-curl 175 µm-thick polyester base and also incorporates an anti-halation layer, which clears during development, for improved overall sharpness and highlight clarity.

This item is one box of 25 sheets of 8 x 10" black and white negative film.

Panchromatic B&W Negative Film    ISO 400/27° in Standard Process    Dual Silver Bromide and Iodide Emulsions    Fine Grain and Wide Exposure Latitude    Anti-Halation and Anti-Curling Layers

Related Questions and Answers

Q: 1. Hi, does this film require any focus shift to account for IR instead of visible light?

A: IR film requires a focus adjustment - that is, after focusing using visible light, the focus ring is turned the distance between the white and red focus line/dot on the focus scale, because the focal point changes slightly in IR. That said, because the film is large format, it's a bit more difficult to gauge with bellows focusing.

Q: 2. Does this paper require all the extra filters?

A: Since it is a variable contrast paper, the best results would be achieved using variable contrast filters such as these: https://bhpho.to/3hToJ8K

Q: 3. For developing Bergger Pancro 400, I will be using Sprint Standard developer. For 400 ASA, can anyone give me some idea of the developing time (for example at 68 F.) either from experience or time used on other developer I can compare? Bergger says they have no idea since don't use Sprint in Europe. Thanks

A: I have never used Sprint or seen it in USA. I use D76 or ID11 if that is what is available. I mix D76 myself from purchased components. Berggers time seem to be very accurate if you have an accurate thermometer and use their suggested agitation cycle. You might try to interpolate time from something else, say tri x D76 1:1 which is 9 minutes at 68F / 20 C. Bergger 400 is double that.If you are unable to do above, the only other option is to do it by test which can be painful without a starting point. The way to do it is shoot 6 exposures if a subject with full tonal range black to white and is repeatable. I use a studio set up with strobe which is always the same.Cut off 12 in/30 cm and develop that. The is no difference in long or short rolls. In any case you will probably need to adjust any time to your paper, enlarger, condenser or diffusion, thermometer error, water, scanner etc. There are many variables. What is important is you actually print or scan ( whatever is your end product) and not use your eye as the negs appear somewhat flat compared to other films. However they seem to print or scan perfectly.Since the development times are so long, you may use 75F without a problem. My first tests were done that way as that was my ambient temp in the middle of a heat spell. I like iso 200 for the extra shadow detail. cut the 400 iso development time by 15% If your first tests are lacking contrast, use longer times. Less if to much contrast.Should you elect D76, I can be a finicky developer. Allow to cool after mixing 24 hours before use. Use small one time use glass bottles, 4 oz in my case. It does not last even a week in partially full containers. FORGET THE 6 WEEKS KODAY SAYS. Ph goes up then down and development time is unpredictable. This happens within days.In full air tight bottles, it lasts 6 months after which activity decreases slowly. I have taken careful measurements to determine this. Kodak agrees with 6 months. I do not use premixed developers as I have no idea how old they are or how long they were on a store shelf. There is a website called emulsive which ran a 3 part series on this new film. I suggest you look at it. Up to 7 now. I am behind.Bergger has a pdf link on their website with much info similar to what Kodak had when they were a profitable company. Do your best to push thru the experimentation . This a beautifully toned film and I am not a fan of fast films like HP5 and Tri x. It has grain but not excessive, but neither as smooth a TM100 or Delta 100. Iso 200 17 min at 68F agitation 5 sec every 30 condenser enlarger, grade 2 paper. Leica V35 requires Normal + 1/2 grade.200 iso 10 min at 75 deg for condenser Focomat 1C. Do not reuse developer if you are experimenting.HC110 is on the the PDF and is a good alternative. Use 1:31 and mix as required. Use dropper or transfer pipette and graduated 10 cc cylinder to

Q: 4. Can this paper be toned?

A: Yes, you can use toner chemicals on fiber-based papers to produce a richer range of tones.

Q: 5. How does this tone? Say selenium for tinting?

A: Toning of this paper is just a light touch of warm (I like very much). This is not Linda greenish like the package shows.

Q: 6. Can anyone venture to guess what toning was used for the image on the package of Bergger Prestige Variable CM Semi-Matte?

A: It is a sepia tone image. I would recommend this Photographer's Formulary toner: https://bhpho.to/3BGm6AR

Q: 7. Will this film fit in a 4x5 film holder? I would like to use it in my Speed Graphic.

A: Yes, the Bergger PrintFilm Continuous Tone Black and White Lab Film (4 x 5", 50 Sheets), BH #BEPF4550 will fit in a 4x5" Film Holder such as the CatLABS 4x5" Film Holder Pair (Refurbished), BH #CA4X5FH2. https://www.bhphotovideo.com/c/product/1552520-REG/catlabs_4x5fh2_4x5_film_holders_pair.html

Q: 8. What kind of chemistry do i need to Enlarge with this Paper for an Art Show?

A: This paper can be developed with traditional black and white darkroom chemistry for black and white prints.

Q: 9. If you enlarge a negative onto this film, would the results be a negative or a positive?

A: Bergger PrintFilm Continuous Tone Black and White Lab Film (5 x 7", 25 Sheets) (B&H# BEPF5725) is print film used to create an interpositive/negative. That's an intermediate stage before making the final film positive. As such, the negative that is enlarged onto it would still be negative.

Q: 10. What kind of Chemistry do I need with this paper for best results for Art Show?

A: Here is a link to Berggers document on this. https://bergger.com/media/wysiwyg/illustrations/Notice_Variable_CX.pdf. For the Developer the Bergger Warmtone Print Paper Developer (1L) linked here is suggested. https://bhpho.to/36LIrNi