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the last word

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

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Archives for 2012

Wayne Gretzky on photography

June 7, 2012 JimK Leave a Comment

You miss one hundred percent of the shots you never take. I understand this may have some application to hockey as well.

The Last Word

Slit scan cloudscapes

June 6, 2012 JimK Leave a Comment

We’ve had some spectacular clouds over the last two days. Here are some slit scans. The first three are infrared.

The Last Word

Slit scans of plants

June 4, 2012 JimK 1 Comment

I have some succulents that my wife propagated from a cutting Don Worth gave to me. I interviewed Don for the CPA Newsletter, Focus, about ten years ago. You can find the interview here.  The succulent was created by Don — it’s a hybrid of Echeveria Shaviana and Echeveria Subrigida, and it’s called Echeveria Afterglow. Slit scans… [Read More]

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Res-ing down in one dimension

May 31, 2012 JimK 1 Comment

I posted earlier about my need to res down 60000 x 6000 images to 6000 x 6000. I was thinking about using Pixel Bender, but I came up with a workaround that does most of what I’d do in Pixel Bender, needs no programming, and works in all versions of Photoshop. They key idea is… [Read More]

The Last Word

Structure and creativity, revisited

May 27, 2012 JimK 2 Comments

Five years ago today, I posted some thoughts on creativity and constraints. You can read them here. Huntington Witherill wrote an eloquent dissent. It’s in a comment to the post. Ten days ago, Brooks Jensen posted a podcast, the teaser for which was: If creativity is a free-flowing, spontaneous activity, won’t a structure constrict the creative process?… [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

  • Javier Sanchez on The 16-Bit Fallacy: Why More Isn’t Always Better in Medium Format Cameras
  • Mike MacDonald on Your photograph looks like a painting?
  • Mike MacDonald on Your photograph looks like a painting?
  • 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

Archives

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Unless otherwise noted, all images copyright Jim Kasson.