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the last word

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

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Archives for 2011

Dr. Pratt’s developer

November 8, 2011 JimK Leave a Comment

In a previous post – you can see it here – I mentioned Dr. Pratt’s developer in passing. A web search for it yields no results. I’d like to give the formula and instructions for its use here, so that it becomes part of the collective cyber-consciousness. Dr. Pratt’s developer is a two-solution paper developer… [Read More]

Technical, The Last Word

Upgrading to iOS 5 on an iPad

November 7, 2011 JimK Leave a Comment

Upgraded iTunes to 10.5.0.142. Plugged in the iPad running iOS 4.3.3. Started iTunes. Tried to perform a backup. Hung. Tried to quit. No dice. Forced iTunes shutdown with Task Manager. Disconnected iPad. Performed soft reset on iPad. Reconnected iPad. Started iTunes. Tried to sync apps. Error message. Retried backup. Error message. Disconnected iPad.  Hard reset… [Read More]

The Bleeding Edge

30 Feet from your bed

November 3, 2011 JimK Leave a Comment

At the joint workshop with John Sexton, Ruth Bernhard gave the participants some advice — the same advice that she gave in the two previous workshops that I’d attended with her: Take photographs no more than 30 feet from your bed. It was not expressed as an exercise, but as a preferred way for an… [Read More]

The Last Word

Notes from a John Sexton/Ruth Bernhard workshop

November 2, 2011 JimK Leave a Comment

While I was working on the last post, I went through my notes from many of the workshops that I’ve attended. I thought you might be interested in my notes from the workshop I did with Ruth Bernhard and John Sexton. I think many of the points they made are universal, important, and timeless. A… [Read More]

The Last Word

Learning art while learning craft

October 31, 2011 JimK 1 Comment

A few weeks ago, someone remarked in the negative about the shortage of CPA workshops centered on developing artistic abilities. (Note to self: maybe there should be a future blog post analyzing why the people who help the most complain the least, and the people who stand on the sidelines complain the most.) I noted… [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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Unless otherwise noted, all images copyright Jim Kasson.