David, yes, 10 seconds was an example only. I think the best way to do this test is not to set out to do it, but have it up your sleeve for when you are in the darkroom and have just done a nice print on Grade 2, 2.5 or 3, i.e. a middle grade, with no burning-in or dodging. The negative is in place and focussed. You know the enlarging time because you have just made the test strips and come up with a nice print. All you need to do is make prints at all the other contrast grades, in whole grade steps. (half grade steps if you really want to, though they aren't really necessary) Done like this the test doesn't take much time to do, and doesn't waste any paper.(Alan, for completeness only, I'm adding that that your 10 seconds is an example and normal test-strips will be needed for the first, No 2 print. I hope you don't mind.)
A good idea. I am happy to send a few. What size would you want Ian? 5x4, 6x6, 6x7? You can have a selection if you want, so long as you don't scratch 'em! And I get them back...I miss deep blacks on print 2 and it seems there is not enough contrast at all.
Couldn't anyone send him a negativ which is know for a good print?
Would it be better if I brought a negative to you so you can evaluate with your experienceA good idea. I am happy to send a few. What size would you want Ian? 5x4, 6x6, 6x7? You can have a selection if you want, so long as you don't scratch 'em! And I get them back...
I shall print another one tonight with NO safelight on which should eliminate thatI did mention before having issues just like this in a small darkroom, I couldn't get more than about grade 3.5 and it was a safe-light issue, one mentioned in a couple of magazines at the time. Paterson/Photax introduced a VC filter for their safe-lights
No, the developer we used at Keiths was Ilford developer, the one I am using Fotospeed PD5 https://www.fotospeed.com/PD5-Print-Developer/products/1261/Was it the same developer Ian ?
That shouldn't be a problem the company has ex Kodak Ltd chemistsNo, the developer we used at Keiths was Ilford developer, the one I am using Fotospeed PD5 https://www.fotospeed.com/PD5-Print-Developer/products/1261/