B&W film with good reciprocity

[Zach In Israel]

Does anyone know of a b&w film that has good reciprocity characteristics. I was thinking about Fuji Acros neopan, but B&H only lists in in quickloads, which I am not interested in. This is going to be for testing a custom deep sky camera.

[David Karp]

T-Max100.

[Oren Grad]

You can get Acros in sheets from Badger Graphic, or from Dirk Rosler's Megaperls Webshop.

[Mike Chini]

Any of the more modern emulsions. T-Max 100, 400 or Delta 100, 400. I use Delta 100 for night photography since I get the equivalent of 400 speed for long exposures and much finer grain.

[John Kasaian]

Tmax 400 is what I use.

[Dirk Rösler]

Acros

[Jim Noel]

The T-Max films are better than conventional films in this respect, but do not come close to Acros.

[Robert Skeoch]

I've had great luck with delta 100.
-rob skeoch

[kjsphotography]

Acros is the best I have found and I have tried them all. Acros has very little reciprocity and up to 2-3 minutes almost none.

[Don Hutton]

TMAX400!!! I have a neg which needed a 15 minute exposure on Tmax 400 - any other film, and the camera would still be in place right now...

[Kirk Gittings]

Acros is the best I have found and I have tried them all. Acros has very little reciprocity and up to 2-3 minutes almost none.

My experience exactly. My favorite all around film these days.

[D. Bryant]

My experience exactly. My favorite all around film these days.
Okay the OP asked which B&W film has the best reciprocity or good reciprocity. And Fuji Acros is reported to be the best.

So my question is which 400 speed B&W has the best reciprocity characteristics? In my experience TMAX 400 is the best choice. Does Acros have a 400 speed version?

Thanks,

Don Bryant

[jwaddison]

Any of the more modern emulsions. T-Max 100, 400 or Delta 100, 400. I use Delta 100 for night photography since I get the equivalent of 400 speed for long exposures and much finer grain.

I haven't tried long exposures with these films, but according to the graphs on Ilford's data sheets, the reciprocity for FP4+, HP5+ and Delta 100 and 400 look almost identical.

[Ron Marshall]

Acros is the best, no correction required up to 120 seconds, 1/2 stop at 1000 seconds:

http://silvergrain.org/Photo-Tech/reciprocity.html

[Oren Grad]

I haven't tried long exposures with these films, but according to the graphs on Ilford's data sheets, the reciprocity for FP4+, HP5+ and Delta 100 and 400 look almost identical.

The one-size-fits-all reciprocity graph that Ilford uses is not accurate.

[Ben R]

Zach, I also need some Acros in Jeru between Dec and March, I will probably be bringing in some at the end of November if I get my act together. If you don't need too much then I'll bring for you too, I'm ordering from Badger.

[LargeFormatShooter]

We have many times use T-Max 100.