How about trying the overexposure or rather exposing for the darker parts of the subject and then using a two bath compensating development such as emofin which will prevent blocking of highlights and give full developments the shadows. With pinhole and compensation development there is no such thing as overexposure.
Alexis I use the same formula as I do for TMAX. The other forgiving factor is that when you correct for reciprocity failure, the failure itself buffers overexposure risk. Don't try to hit a mark too closely. Overexposure may be a wrong, but it's only a misdemeanor. Underexposure is a felony. ----- Original Message ----- From: bwphoto4...@aol.com To: pinhole-discussion@p at ??????? Sent: Friday, July 19, 2002 10:26 PM Subject: [pinhole-discussion] HP5, Delta films and reciprocity OK, This has probably been discussed recently, but can anyone out there recommend a good formula/rule of thumb for adjusting exposure for reciprocity in Ilford films? The technical data on their webpage is merely a chart, and I am hoping to get more specific information, based on the experience of the other pinhole photographers on the list. I normally use Delta 400, but occasionally use HP5 and Delta 100. I process in Ilfotec DDX (although I also occasionally use Ilfosol). Anyone out there with experience with these films? My camera is the Zero Image multiformat (which is at f235). Thanks! M Billingslea
