A little help with pushing HP5+

[OMU]

Well, I took some inspiration form this and shot some HP5+ at 3200 in 35mm. Not bad I thought. I left it full size for those that want to look.

OM10, 50 F1.8, Olympus Doubler, F4 1/60, Rodinal 1:100 stand inv every 30 min s for 2 hrs.

http://www.flickr.com/photos/peterbcarter/4060395555/

I' l have to try this, but I' m not used to stand development. So to make it clear:
Do you invert for 1 sec every 30 minute for 2 hrs? for practical use; turn the thank upside down once and put it down again?
- And the temperature? 20 degree C?

Thanks.

 

[lightwisps]

I have had good results using D76.

 

[Gritycityflicks]

Iv just shot of a few rolls of HP5 at 3200 and am digging for info on developing it.

For this, I use Ilford's recommendations.
400 to 3200 (in 6400) Ilford Microphen stock solution at 20 ° C

What is ment by (in 6400)?