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the last word

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

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Pay no attention to the man behind the curtain

May 16, 2011 JimK Leave a Comment

For the past 25 years, much of my photographic work has been a study of motion and its representation in a still image. The techniques that I’ve used have evolved from simple and classical (take a look at Alone in a Crowd) to esoteric and peculiar. Over the last 10 years, as I’ve shown the… [Read More]

The Last Word

Finding your audience

May 15, 2011 JimK Leave a Comment

This afternoon I finished a three-day workshop sponsored by the CPA, and given by Brooks Jensen. The title of the workshop was “Finding an Audience for your Work”. In the workshop, Brooks ties together many of the threads that he has been weaving in LensWork, on their website, on his website, and on his blog…. [Read More]

The Last Word

X-Rite I1 Publisher/I1 Pro OOBE, part 7

May 6, 2011 JimK 2 Comments

Now that I’ve figured out how to use it, I think the I1 Pro is adequate for making profiles that require reading 1000 or 2000 patches, if you don’t have to do it too often. While I’ve been impressed with the profiles that I1 Publisher produces from as few as 800 patches, I think I… [Read More]

The Bleeding Edge

X-Rite I1 Publisher/I1 Pro OOBE, part 6

May 3, 2011 JimK Leave a Comment

I got an e-mail from X-Rite support this afternoon asking for more information. I sent it off. Meanwhile, encouraged by the fact that I had finally made a profile, albeit a terrible one, I started over. I printed a new 400-sample test target, and was able to measure it with only one bad row. After… [Read More]

The Bleeding Edge

X-Rite I1 Publisher/I1 Pro OOBE, part 5

May 3, 2011 JimK Leave a Comment

Still no word from X-Rite, but Erica at Rods and Cones passed along an e-mail message from someone who does technical support for the X-Rite distributer that she works with. He said that, as I suspected, that message means that the measurement data set is bad. He suggested that I reprint and re-measure. I did… [Read More]

The Bleeding Edge

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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

  • JimK on Sony 135 STF on GFX-50R, bokeh visuals
  • Manu on Sony 135 STF on GFX-50R, bokeh visuals
  • John Griffin on The 16-Bit Fallacy: Why More Isn’t Always Better in Medium Format Cameras
  • JimK on How Sensor Noise Scales with Exposure Time
  • Štěpán Kaňa on Calculating reach for wildlife photography
  • Štěpán Kaňa on How Sensor Noise Scales with Exposure Time
  • JimK on Calculating reach for wildlife photography
  • Geofrey on Calculating reach for wildlife photography
  • JimK on Calculating reach for wildlife photography
  • Geofrey on Calculating reach for wildlife photography

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Unless otherwise noted, all images copyright Jim Kasson.