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• Post #2645659

  #photography #travel #taipei

• Post #2645658

  #photography #travel #taipei

• Post #2645657

  #photography #urban #travel

• Post #2645656

  #photography #urban #travel #taipei

• Post #2645655

  #photography #travel #taipei

• Post #2645654

  #photography #travel #taipei

• Post #2645653

  #photography #travel #sunnyvale

• Post #2312118

  #photography #filmphotography #fingerlakes

• Post #2312117

  #photography #filmphotography #darkroom I tested my paper and printing workflow and got some interesting curves. See alt-text for tech details. Most interesting: grade 2 and 2.5 are virtually identical (except that grade 2 is denser). Grade 1.5 and 2 have virtually the same calculated ER. Is this due to the high-CRI LED I'm using instead of an incandescent? The no-filter curve would do interesting, possibly attractive, things to gamma. Next weekend, if I have time: check split-grade...

• Post #2312116

  #photography #filmphotography #travel

• Post #2312115

  #photography #spring #fingerlakes

• Post #2312114

  #photography #filmphotography #spring

• Post #2312113

  #photography #filmphotography #fingerlakes

• Post #2312112

  #photography #spring #fingerlakes

• Post #2312111

  #photography #filmphotography #nokings3

• Post #2312110

  #photography #filmphotography #largeformat

• Post #2312109

  #photography #filmphotography #darkroom I did a series of split-grade density test strips. I tried grade 00 at 20 seconds, plus grade 5 at 5, 7.1, 10, 14.1, 20, 28.3 and 40 ses (half-stop sequence). The results are interesting. You get a range of "paper grades" from about 0 to about 3, but with much different toes (highlight separation is increased) and shoulders (shadow separation is reduced), compared to the base curves.

• Post #2312108

  Following up on the curves I posted earlier, I had Claude write Python to turn the S curves into Photoshop-style curves, and animate them from softest to hardest. The results were not what I expected -- not at all a "smooth" evolution from first to last. The "deviation animation" shows how the brightness at each input point differs from an ideal linear 1:1 conversion #photography #filmphotography #darkroom

• Post #2312107

  #photography #largeformat #darkroom

• Post #1079522

  I played some with a Dektronics Printalyzer Densitometer, a step wedge, and Fomapan 100. This is, essentially, the BTZS testing originated by Phil Davis. I ran into two probs: reciprocity for the film exposure, and really exaggerated temperature sensitivity (much more than generic tables would lead you to believe). These are not controlled as tightly for 20C as they should be, but useful data. #photography #filmphotography 1/

• Post #537598

  RE: https://mastodon.social/@sundogplanets/116059201806967549 Posted my comments as PC0107595 and PC0110079. Thanks @sundogplanets for banging the drum on this pair of projects.