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the last word

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

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Another reason to keep your old images

September 7, 2024 JimK 4 Comments

During the late 1960s I took pictures of Can-Am and USRRC races for a magazine called Competition Press and Autoweek. I had lots of images of famous drivers like Dan Gurney, Bruce McLaren, Dennis Hulme, Jim Hall, Parnelli Jones, Mark Donohue, etc. During one of my moves in the 1970s almost all the negatives got… [Read More]

The Last Word

Fujifilm GFX 100S II summary

September 3, 2024 JimK 8 Comments

I’m not sure that further time spent with this camera is going to teach me much. I have the GFX 100 II, and the comparison to the S version is pretty simple: Fixed EVF on the S version, so the tilting EVF adapter can’t be used S version EVF is lower resolution, but that doesn’t… [Read More]

The Last Word

Good Enough

September 3, 2024 JimK 1 Comment

As I was driving this morning, Molly Tuttle’s Good Enough – a plea to avoid perfectionism – came on the radio. It got me thinking about art and the possibly misplaced search for perfection. As a design engineer, I found the concept of good enough to be ever-present. The design constraints always meant that the… [Read More]

The Last Word

Fujifilm GFX 100S II EDR

August 29, 2024 JimK 10 Comments

Lensrentals has loaned me a Fuji GFX 100S II for testing. Today I’m reporting on engineering dynamic range (EDR). In single shot mode at putative 14-bit precision: Same as the GFX 100 II, including the odd results at ISO 80, which in that camera was the result of gratuitous in-camera black point processing. In single… [Read More]

GFX 100S II

Fujifilm GFX 100S II precision

August 28, 2024 JimK 6 Comments

Lensrentals has loaned me a Fuji GFX 100S II for testing. My first test was to measure the precision in various drive modes: Single shot, 14 bit Single shot, 16 bit CL CH 5 fps CH 7 fps The results, all with the camera in EFCS mode:         So, the answers are:… [Read More]

GFX 100S II

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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

  • 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
  • Ivo de Man on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF
  • JimK on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF
  • JimK on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF
  • Ivo de Man 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.