Slowest B+W Films? By slow I mean < 100

[Pirate]

I use Rollei Pan and Ortho 25 and some Efke KB 25, and lately I've been getting more into Ilford Pan F+ 50. Freestyle also sells some Adox 20 ISO.

 

[bulevardi]

Washi film 12 ISO:
https://www.retrocamera.be/nl/35mm-film-zwart-wit-washi/944-washi-film-a-12-135-36.html

Kono! Donau 6 (6 ISO):
https://www.thephoblographer.com/2015/10/19/kono-donau-film-is-rated-at-iso-6/
It's color, but you can maybe desaturate after scanning to get a greyscale... for B/W.

Svema Mz3 (3 ISO):
https://filmphotographystore.com/collections/svema-film/products/35mm-bw-film-svema-mz3-1-roll

I mean, 3 ISO, for real... Who uses this?

Anyone tried these ones yet, or has some results to show with slow films like these?
The cameras I'm shooting with start at iso 25... so not going to try the films above.
I haven't experimented with pushing/pulling films.

 

[dmr]

I've got one roll at home that is unusually slow, like 1.6 or so, don't really remember. It was a throw-in with some other films I ordered a while back.

I don't know what I'm gonna shoot with it.

 

[zuiko85]

Washi film 12 ISO:
https://www.retrocamera.be/nl/35mm-film-zwart-wit-washi/944-washi-film-a-12-135-36.html

Kono! Donau 6 (6 ISO):
https://www.thephoblographer.com/2015/10/19/kono-donau-film-is-rated-at-iso-6/
It's color, but you can maybe desaturate after scanning to get a greyscale... for B/W.

Svema Mz3 (3 ISO):
https://filmphotographystore.com/collections/svema-film/products/35mm-bw-film-svema-mz3-1-roll

I mean, 3 ISO, for real... Who uses this?

Anyone tried these ones yet, or has some results to show with slow films like these?
The cameras I'm shooting with start at iso 25... so not going to try the films above.
I haven't experimented with pushing/pulling films.

Even though your meter only sets as low as 25 you can still use these films with tour meter. Set meter at ISO 25 and;
ISO-12, meter at ISO 25 and add one stop.
ISO-6, meter at ISO 25 and add 2 stops
ISO-3, meter at ISO 25 and add 3 stops


simple, no?

 

[sepiareverb]

There are a couple of duplicating and sound recording films, also very slow. ORWO DP3 or 31, contrasty but tameable

 

[Pentode]

You might try Kodak 5366 (finegrain duplicating film) or 5234, which has an ASA equivalent of 5

In addition to these there is 5302, which is another copy film of similar ilk, ISO 5 I think. Discontinued Eastman Kodak copy stock includes 5369, SO-331 and some others. All very high contrast, very fine grain and very slow.

There are a couple of duplicating and sound recording films, also very slow. ORWO DP3 or 31, contrasty but tameable

Also Orwo's DN2 or 21 and PF2. DP31, DN21 and PF2 are ISO 3, 3-6 and 5 respectively.

Also in the expired world you can get great big rolls of former Soviet copy film and microfilm. Svema and Tasma made several films in the ISO 3-10 ballpark and Tasma Mikrat Orto microfilm was a technical film rated at ISO .75 - that slow enough for ya?