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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

Photography and the work ethic

May 14, 2012 JimK 2 Comments

Friday night, I told David Bayles that I was working on photography about four hours a day, and that seemed to be the right amount of time for me. We got into a discussion of the work ethic of some photographers. David said that Brett Weston immediately processed his film upon returning from a photographic… [Read More]

The Last Word

More slit scan infrared

May 14, 2012 JimK Leave a Comment

Fog burning off yesterday around noon. 47mm lens, about 20 minute exposures.    

The Last Word

Infrared cirrus

May 9, 2012 JimK Leave a Comment

Last night, I made some infrared slit scan photographs of a spectacular high cirrus formation, using a 47mm lens and my new lens hood (see previous post).  Time runs from right to left. Each exposure was about half an hour long.  

The Last Word

Fighting flare in slit scan photographs

May 9, 2012 JimK Leave a Comment

When they’re using film, view camera photographers don’t need lens hoods. They only need to shade the lens at the instant of exposure, and the perfect implement to do that is right at hand: the dark slide they just pulled out of the film holder. When you’re making slit scan images, where the exposures can… [Read More]

The Last Word

Filter frustration

May 2, 2012 JimK Leave a Comment

The slit scan photography that I’m now doing requires that I use, at various times, three different filters: infrared pass, infrared block, and polarizing. The lenses I’m using for the series – 65 mm, 75 mm, 90 mm, 135 mm, and 210 mm – all take different filters. Some of the filters that I need… [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.