Developing HP5 pushed to 3200

[andrew_spiers]

A friend has given me a film to develop - its an HP5 which he pushed

to 3200. I normally use INFOSOL S for developing but looking at the

data sheets, it doesn't have a development time for HP5 @ 3200. So

two questions;

 

1. Is it possible ?

2. How do you calculate the development times for pushed films ?

 

TIA

[xav]

Have a look at the <a href="http://www.digitaltruth.com/">massive dev. chart</a>. As far as I know it's not too good to push HP5 that high. You should also think about switching to a speed increasing developer (as Microphen if you want to stick to Ilford products).

[chris_waller]

HP5 can be uprated to 3200 ASA but use a speed developer, e.g. Microphen or similar.

[luis_martins]

dear andrew,

 

i have successfully developed hp5+ @ 3200 with ilford lc29 folowing their recomended time. the negs where quite contrasty and grainy but i was able to get a few nice photos from those negs and would do it again if i had no other film available in my bag.

 

i agree that you'll probably get beter results with microphen, which is what i normaly use to process delta 3200 films since i gave up pushing hp5+ that much.

 

be aware that shadow detail will be almost inexistent and the negs will be quite thin so you may think you won't be able to print them until you put them under the enlarger.

 

[],

[nige_buddy]

I did a couple in LC29. Here's a scan.<div></div>

[colmmccarthy]

Haven't tried HP5 but I've pushed Tri-X all the way up to 3200 many times in straight D-76, which of course is not recommended. I follow the standard development instructions up to 1600 and then I stop agitating for the remaining development. Seems to hold its shadow detail quite nicely.