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the last word

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

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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

iPhone 4s OOBE — part 2

October 30, 2011 JimK Leave a Comment

There is not much to say about settling in with the iPhone 4s. It’s an iPhone, like most of the other iPhones, except faster. The big difference is Siri, and, since you probably read about her other places, I’m not going to say much. I’ve used a lot of devices and programs with a speech… [Read More]

The Bleeding Edge

IPhone 4s OOBE – part 1

October 28, 2011 JimK Leave a Comment

The FedEx guy handed me the package at 11 o’clock. Not a very big box, but whatever was in it was much smaller than the container, and was rattling around. I opened it up. iPhone, check. Belkin neoprene case, check. Packing slip, check. Plastic bag to send back the old phone, check. Impact-absorbing packing material?… [Read More]

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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  • Mike MacDonald on Your photograph looks like a painting?
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  • JimK on Goldilocks and the three flashes
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  • 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

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Unless otherwise noted, all images copyright Jim Kasson.