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the last word

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

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New iPad OOBE, part 2

March 20, 2012 JimK Leave a Comment

In my previous post, I reported on my difficulties in getting cellular data activated on my iPad 3. When we left off, the Verizon tech had told me that everything was set up properly, and if I went somewhere where there was no network extender and a strong cellular signal, that my iPad would be… [Read More]

The Bleeding Edge

New iPad OOBE

March 18, 2012 JimK Leave a Comment

The big brown truck showed up Friday. My new iPad was on it. I had to sign for it twice, once using the standard UPS signature capture device, and once using a plain piece of paper. I asked the driver, “Why the extra security?” He said that he didn’t really know, but they were doing… [Read More]

The Bleeding Edge

Synology DS1511+ performance

March 3, 2012 JimK Leave a Comment

Using large files and Vice-Versa with CRC on, I’m getting sustained write throughput of between 90 MB/s and 110 MB/s. That’s pretty much all a 1 Gb/s Ethernet pipe can handle. Read performance is about the same, indicating that the limiting factor is the gigabit Ethernet connection. During these transfers, CPU usage in the 1511+ runs about… [Read More]

The Bleeding Edge

Synology DS1511+ OOBE

March 2, 2012 JimK Leave a Comment

My Drobo FS took itself offline last week. Again. Actually, it was only partly offline. A server that had mapped a network disk drive to it through the Drobo Dashboard could still see it and write to it, but no Drobo Dashboards on any computer could see it. I needed to shut it down to… [Read More]

The Bleeding Edge

Sony NEX-7 noise

December 31, 2011 JimK 13 Comments

In a comment to the previous post, a reader challenged my assertion that the NEX-7 is a terrible lowlight camera because of high noise level above ISO 400. I’ve conducted some experiments to demonstrate what I’m talking about. Because noise needs to be evaluated at pixel for pixel or higher resolutions, I thought it would… [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

  • 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

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Unless otherwise noted, all images copyright Jim Kasson.