help pushing ilford fp4

[Mr. Krinkle]

Today i took some photos with ilford fp4 (iso 125) film. i can`'t remember pretty well what was the develope time with D-70 developer. also i am going to push it to 1600 iso (bit crazy??) and i remember i was told that for each stop you push you must add %40 to the original time, but im not sure anymore.

does anyone know about this?? can anyone give me a hand?

thank you

 

[j_mcquillen]

I'm not sure on the development times needed, but I think pushing fp4 to 1600 might be a little extreme... I did a quick search, and most of the film I could find being pushed to 1600 was iso 400 or faster.

...but then I'm no expert on developing, so someone else might prove me wrong :mrgreen:

 

[Mr. Krinkle]

yeah, well i spoke to someone yesterday about pushing the fp4 to 1600, and well he considered also very extreme. i kindda had the feeling that it wouldnt work so well, but i dont know, i just did it. now im kindda courious about what the result will look like.

 

[jwkwd]

Don't know, but kudos for using film, processing and pushing. Not to plug another site, but if you ask at apug.org, I am sure you could find out there. Mods, feel free to ditch the site from this if you want.