the last word

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

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A New Machine

March 4, 2009 By JimK Leave a Comment

I’ve enjoyed writing about the Drobo experience last month. I hope some of you enjoyed reading it. I’ve decided to keep posting about some of my tussles with the technology of digital photography. Jerry Pournelle used to call his column in Byte “Chaos Manor”. I think I’ll call mine “The Bleeding Edge.” It’s not that… [Read More]

Paper Testing

February 17, 2009 By JimK 2 Comments

I got distracted with the Drobo, but I’ve finally gotten around to writing the post on paper testing that I promised last month. One of the reasons for the delay is a struggle to distinguish truth from opinion.  As I wrote, I slowly came to realize that each piece of advice falls into a continuum… [Read More]

The Drobo: Conclusions

February 7, 2009 By JimK Leave a Comment

I’ll need a few months of glitch-free operation before this is more than provisional, but it looks like the Drobo is a pretty good solution for off-site backup. The good: Using bare drives is a real plus. There’s no time wasted bolting the drives into trays, and they take up the least room in the… [Read More]

More fun with the Drobo

February 6, 2009 By JimK 3 Comments

When we last looked at the Drobos, one of them was causing the OS to insert disk errors in the error log. I had also noticed that VVEngine couldn’t complete one large file transfer. It turned out that the two events occurred simultaneously, suggesting a common cause. I used Windows Explorer to transfer a much… [Read More]

Life with Drobo

February 2, 2009 By JimK 3 Comments

Anybody remember Jerry Pournelle’s column in Byte Magazine? In the spirit of that long-running account of Jerry’s struggles with technology, here’s a blow-by-blow of my experiences with the Drobo boxes. You are welcome to enjoy a bit of schadenfreude. Conclusions in the next post. I ordered the first box from Amazon. It arrived in two… [Read More]

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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
  • 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 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

  • KM on Format size and image quality
  • JimK on Sigma ART 24/1.4 on Fujifilm GFX 50S
  • Christopher on Sigma ART 24/1.4 on Fujifilm GFX 50S
  • JimK on PDAF banding in GFX 100 in-camera JPEGs
  • Antoine on PDAF banding in GFX 100 in-camera JPEGs
  • Rico Pfirstinger on GFX Natural Live View and raw file histograms
  • Maurin on Zeiss Batis 135 on Nikon Z7
  • JimK on Zeiss Batis 135 on Nikon Z7
  • Maurin on Zeiss Batis 135 on Nikon Z7
  • Scott Pilla on GFX Natural Live View and raw file histograms

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Unless otherwise noted, all images copyright Jim Kasson.