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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

Previsualization heresy, part 4

June 13, 2012 JimK Leave a Comment

Photography, like any art, improves with experimentation. Great photographs don’t usually come about as the result of extended navel-gazing sessions, but as the result of trying something, having it kind of work, making it better, exploring blind alleys, honing away unnecessary elements, and finally arriving at something worthwhile. The result of an experiment is, by… [Read More]

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Previsualization heresy, part 3

June 12, 2012 JimK 1 Comment

Another aspect of previsualization is envisioning just the way the tonality of the actual scene will map to the tones in the final print before tripping the shutter. Ansel Adams’ Zone System is an orderly approach to both looking at the scene with that in mind and making the pre-exposure vision a reality. In moderation,… [Read More]

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Previsualization heresy, part 2

June 11, 2012 JimK Leave a Comment

I’m not against all previsualization. If we didn’t do some visualization of what the finished photograph would look like, we wouldn’t need to focus or set the exposure. We wouldn’t need viewfinders. We would point the camera in random directions, trip the shutter at random times, and pore through the results later, like looking for… [Read More]

The Last Word

Previsualization heresy, part 1

June 10, 2012 JimK 1 Comment

I live near Carmel, California. The photographic history of this place is freighted with an approach to image-making called previsualization.  Ansel Adams wrote about visualization, which he defined as “the ability to anticipate a finished image before making the exposure”. Many say that Minor White invented the word previsualization, although he credited Adams and Edward… [Read More]

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Slit scan ripples

June 8, 2012 JimK Leave a Comment

I’ve been doing some slit scans of the images created on the bottom of a pool by ripples on the surface. The ripples create highly aspherical lenses that create distorted images of the sun on the bottom. There are additional distortions caused by the surface of the pool as the light travels upwards to the… [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

  • 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
  • Ivo de Man on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF

Archives

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