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the last word

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

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Win 7 Aero & 30 bit color

April 2, 2011 JimK Leave a Comment

This morning I noticed that, when I hovered my mouse pointer over items in the Taskbar, I didn’t get the usual miniature preview windows. Instead I got a set of small dark blue windows with the names of the documents that were open by the indicated application. I’d never seen anything like that before. Then… [Read More]

The Bleeding Edge

The monitor brightness dilemma solved

April 1, 2011 JimK Leave a Comment

In my last post, I was bemoaning the choice between setting your monitor to a high brightness level so that it’s comfortable for most things and setting it to a lower level to get more accurate soft proofing. It turns out that with the NEC PA series monitors you can have your cake and eat… [Read More]

Technical, The Bleeding Edge

30 bit color

March 30, 2011 JimK Leave a Comment

In the early nineties, while I was attending SPIE, SIGGRAPH, and Society for Information Display conferences, I heard a psychologist give a presentation on display bit depth. He claimed that, under the right conditions, humans could distinguish about 400 shades of gray, and that therefore 8 bits of grayscale resolution, which only allows 255 or… [Read More]

The Bleeding Edge

Epson 4900 OOBE

March 27, 2011 JimK Leave a Comment

As I reported earlier, I had decided to wait on upgrading my 3880 to a 4900, but someone wanted to buy the 3880, and that was enough to push me over the edge. The 4900 arrived on a pallet, with the box standing about two feet high above the top of the base. UPS said… [Read More]

The Bleeding Edge

Dell T7500 OOBE 5 – RAID controller

March 23, 2011 JimK 2 Comments

Sloggus interuptus. The RAID controller arrived yesterday. I picked HighPoint as the vendor for no reason other than they’re the supplier of the HBA that Western Digital ships with their 3 TB disks.  I plugged it in – it’s a tiny PCIe card – and wired up one of the 3 TB Hitachi drives to… [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

Archives

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Unless otherwise noted, all images copyright Jim Kasson.