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the last word

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

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PhotoLucida 2009: why go?

April 3, 2009 JimK Leave a Comment

Sometime last fall, I decided to give PhotoLucida another try. During the last six years, it has become quite popular, with first-come-first-served signups that fill quickly. I waited until the first signup day, accessed the web site, and got in. PhotoLucida is held every two years. I let the 2005 and 2007 ones go by…. [Read More]

The Last Word

PhotoLucida 2003

April 2, 2009 JimK Leave a Comment

It was December of 2002. I was at an opening (a Roman Loranc show, I think) at the Ansel Adams Gallery on Cannery Row (sadly, gone now). Jeanne Adams came up to me and said that she thought I’d enjoy going to PhotoLucida. “Photo what?” was the best I could do.  I had no idea… [Read More]

The Last Word

A new web site

March 24, 2009 JimK Leave a Comment

Some History In 1996 I decided to create a web site for my underwater photographs. I registered kasson.com with the InterNIC, installed Internet Information Services on an NT 4 server that was connected to my ISP over Basic Rate ISDN, and started to create html using Notepad. That got old real fast, so I switched… [Read More]

Technical, The Last Word

Using only what you need

March 21, 2009 JimK Leave a Comment

When I get a new computer I usually reinstall just about all the aps that were on the old one. This time, perhaps because it was an out-of-schedule upgrade that I resented having to do, I just installed the ones that I knew I needed. Over a couple of weeks, I added a few more,… [Read More]

Technical, The Bleeding Edge

The new compute: after the transition

March 18, 2009 JimK Leave a Comment

Now that it’s set up, I am happy with the new computer; and I’m even starting to believe it was worth all the trouble. Although air-cooled, it’s as quiet as any water-cooled machine I’ve owned. I’ve thrown a lot of photographic processing at it, and I’ve never seen memory usage above 60% (That’s still a… [Read More]

Technical, 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

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Unless otherwise noted, all images copyright Jim Kasson.