I was practicing printing last night and was suprised when my proof times for 4 4x5 tmax negagatives were about 2-3 seconds on Kodak Polymax RC paper. Then I enlarged one to about 7x10 or so, and the correct exposure time was 2 seconds. This seems very short. All the books I'm reading tell you to run test strips for about 3-5 seconds for each section of exposure. I'm stopping the lens down to f/11. I'm diluting my dektol 1:3 for two minutes. I'm just wondering if this is normal. Any thoughts one what I might be doing wrong.
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