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the last word

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

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Archives for 2015

Book report: options, options

June 23, 2015 JimK Leave a Comment

This is post twelve in a series about my experiences in publishing a book. The series starts here. I said in an earlier post that sorting through the options for a book was a lot like working out the details of what goes into a house that you’re building. You’ve got a lot of choices… [Read More]

The Last Word

And the winner is…

June 18, 2015 JimK 2 Comments

This one: Not a unanimous pick among you blog readers. In fact, it didn’t get one vote. I debated on whether to include it in the submission or not. This little exercise demonstrates to me — and I hope, to you all — how unpredictable and seemingly arbitrary the jurying process is. I’ve sat in… [Read More]

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IR stitches in CPA show

June 17, 2015 JimK 5 Comments

I’ve had a picture selected for the Center for Photographic Art Member’s Exhibition. I submitted ten images for the infrared freeform-stitched work that I did in a nearby oak grove a few month ago. My tentative title for the series is Los Robles. I’ll show you all ten images today, and you can play juror…. [Read More]

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Synthetic slit scans with the a7S

June 16, 2015 JimK 1 Comment

The Sony alpha 7S is capable of 4K video (aka 2160p, aka 2160×3840) at a bit under 30 frames per second, which I will round to 30 fps. I thought I’d use that camera to do some slit scan photography. Actually, that’s why I bought it a year ago, but it’s taken me a while… [Read More]

The Last Word

The view from my studio window

June 14, 2015 JimK 3 Comments

I’ve started making photographs out my studio window. Here’s one in color, to give you an idea of what the view looks like: But most of the time I’ve been using a Sony a7II that’s been converted for infrared capture by LifePixel. I’m using their standard IR filter, which passes wavelengths as short as long… [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

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Unless otherwise noted, all images copyright Jim Kasson.