making b&w prints of medium format negs

Anonymous
Posted 01/05/2004 - 19:40 Link
I know the times for 35mm are they different for medium?
Kim C
Posted 01/05/2004 - 23:42 Link
Hi,
It's a little while since I last did any but I remember the times for FP4 and HP5 were the same. Basically, it's the same film just a different size. At least it always used to be. The insert in the Ilford boxes gave the times for Ilford chemicals so you should be able to compare them. As far as the prints were concerned, I always did a test strip and worked my way from there. A lot will depend on the enlarger and lens.
Regards
Kim
johnriley
Posted 02/05/2004 - 22:00 Link
When the times quoted are different for 35mm and medium format it reflects the fact that usually 35mm is printed using a condenser enlarger and 120 using a diffused light source. If diffused. the contrast will be lower so a little extra development can improve matters. Of course, this may well not be true and I use condenser enlargers for both formats.

As you get to know your materials you can adjust your development time to suit your own particular way of working. So, for example, if you find that giving 10% longer development gives you better negatives, then that is the right thing to do.
Best regards, John

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