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the last word

Photography meets digital computer technology. Photography wins -- most of the time.

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Archives for 2016

A book report — early “sales” opportunity

September 16, 2016 JimK 4 Comments

This is part of a series about my experiences in publishing a book.The series starts here. The Staccato book is at the bindery, and they are beavering away. I don’t know when I’ll see the truck with two pallets full of books, but I expect that it will be a matter of a few weeks…. [Read More]

The Last Word

Roger Cicala on lens testing

September 14, 2016 JimK 1 Comment

Roger Cicala has written a cogent — and sobering — blog post on lens testing and copy variation. I think it’s a must read for those of us who test lenses, and something anyone who uses lenses and examines the results critically could get a lot out of.

The Last Word

A book report — the strike test

September 10, 2016 JimK Leave a Comment

This is part of a series about my experiences in publishing a book. The series starts here. You might be asking, “What is a ‘strike test’?”   If you know, congratulations.  If you are in the dark, just as I was until yesterday, read on. When we last left the book, it was printed, and we… [Read More]

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In image editing, the room illumination matters

September 6, 2016 JimK 3 Comments

The day before yesterday I wrote about the importance of the image surround for image editing. In image editing, the surround matters The reason the surround is important is that it affects the state of adaptation of you, the image editor and therefor the way that tones and colors appear. Let’s imagine that the image… [Read More]

The Last Word

In image editing, the surround matters

September 4, 2016 JimK 3 Comments

Much has been made of the absolute brightness of the display used for image editing. A common cause of having your prints come out too dark is having your display too bright. This is now fairly well understood by many, but new people entering the digital photography arena often encounter it, especially now that average… [Read More]

The Last Word

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Articles

  • About
    • Patents and papers about color
    • Who am I?
  • How to…
    • Backing up photographic images
    • How to change email providers
    • How to shoot slanted edge images for me
  • Lens screening testing
    • Equipment and Software
    • Examples
      • Bad and OK 200-600 at 600
      • Excellent 180-400 zoom
      • Fair 14-30mm zoom
      • Good 100-200 mm MF zoom
      • Good 100-400 zoom
      • Good 100mm lens on P1 P45+
      • Good 120mm MF lens
      • Good 18mm FF lens
      • Good 24-105 mm FF lens
      • Good 24-70 FF zoom
      • Good 35 mm FF lens
      • Good 35-70 MF lens
      • Good 60 mm lens on IQ3-100
      • Good 63 mm MF lens
      • Good 65 mm FF lens
      • Good 85 mm FF lens
      • Good and bad 25mm FF lenses
      • Good zoom at 24 mm
      • Marginal 18mm lens
      • Marginal 35mm FF lens
      • Mildly problematic 55 mm FF lens
      • OK 16-35mm zoom
      • OK 60mm lens on P1 P45+
      • OK Sony 600mm f/4
      • Pretty good 16-35 FF zoom
      • Pretty good 90mm FF lens
      • Problematic 400 mm FF lens
      • Tilted 20 mm f/1.8 FF lens
      • Tilted 30 mm MF lens
      • Tilted 50 mm FF lens
      • Two 15mm FF lenses
    • Found a problem – now what?
    • Goals for this test
    • Minimum target distances
      • MFT
      • APS-C
      • Full frame
      • Small medium format
    • Printable Siemens Star targets
    • Target size on sensor
      • MFT
      • APS-C
      • Full frame
      • Small medium format
    • Test instructions — postproduction
    • Test instructions — reading the images
    • Test instructions – capture
    • Theory of the test
    • What’s wrong with conventional lens screening?
  • Previsualization heresy
  • Privacy Policy
  • Recommended photographic web sites
  • Using in-camera histograms for ETTR
    • Acknowledgments
    • Why ETTR?
    • Normal in-camera histograms
    • Image processing for in-camera histograms
    • Making the in-camera histogram closely represent the raw histogram
    • Shortcuts to UniWB
    • Preparing for monitor-based UniWB
    • A one-step UniWB procedure
    • The math behind the one-step method
    • Iteration using Newton’s Method

Category List

Recent Comments

  • bob lozano on The 16-Bit Fallacy: Why More Isn’t Always Better in Medium Format Cameras
  • JimK on Goldilocks and the three flashes
  • DC Wedding Photographer on Goldilocks and the three flashes
  • Wedding Photographer in DC on The 16-Bit Fallacy: Why More Isn’t Always Better in Medium Format Cameras
  • JimK on Fujifilm GFX 100S II precision
  • Renjie Zhu on Fujifilm GFX 100S II precision
  • JimK on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF
  • Ivo de Man on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF
  • JimK on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF
  • JimK on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF

Archives

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Unless otherwise noted, all images copyright Jim Kasson.