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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

Synology DS1511+ OOBE

March 2, 2012 JimK Leave a Comment

My Drobo FS took itself offline last week. Again. Actually, it was only partly offline. A server that had mapped a network disk drive to it through the Drobo Dashboard could still see it and write to it, but no Drobo Dashboards on any computer could see it. I needed to shut it down to… [Read More]

The Bleeding Edge

“Stacatto” pictures from Miami Beach

February 24, 2012 JimK 5 Comments

I apologize for the long gap between posts. I spent much of the time exposing and processing  “Stacatto” pictures in Miami Beach.  Here’s what I’ve got so far:

The Last Word

Ansel Adams quote from Alan Ross

February 2, 2012 JimK Leave a Comment

‎”The craft has to be there but it can’t be a fetish, and the spirit has to be there or it isn’t worth doing” Ansel Adams, March 1975. Thank you, Alan.

The Last Word

Pentax K-01

February 2, 2012 JimK Leave a Comment

The Pentax K-01 got announced today, but by B&H, not by Pentax. Oops. At first blush, it looks like it could be an alternative to the NEX-7 for photographers wanting a small camera with a big lens selection, but it has two fatal flaws. APS-C sensor? Check. No mirror? Check? 16 MP? Check? Anti-shake with… [Read More]

The Last Word

NEX-7 — What to do about purple corners

January 31, 2012 JimK Leave a Comment

The purple corner effect is fixable using Photoshop tweaks or programs like Cornerfix. Effective use of either requires calibration images. In lenses that exhibit moderate to strong purple corners on the NEX-7, apertures wider that about f/5.6 require their own calibration images. That’s a lot of calibration images to keep track of. One for each… [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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