the last word

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

  • site home
  • blog home
  • galleries
  • contact
  • underwater
  • the bleeding edge
You are here: Home / 2018 / Archives for December 2018

Archives for December 2018

Nikon 50/1.8S near-focus bokeh

December 22, 2018 By JimK 5 Comments

This is one in a series of posts on the Nikon Z6 and Z7. You should be able to find all the posts about that camera in the Category List on the right sidebar, below the Articles widget. There’s a drop-down menu there that you can use to get to all the posts in this… [Read More]

Nikon 50/1.8 S OOF PSFs

December 22, 2018 By JimK 1 Comment

This is one in a series of posts on the Nikon Z6 and Z7. You should be able to find all the posts about that camera in the Category List on the right sidebar, below the Articles widget. There’s a drop-down menu there that you can use to get to all the posts in this… [Read More]

Nikon 50/1.8 S, Otus 55 on Z7; Zony 55 on a7RIII

December 20, 2018 By JimK 13 Comments

This is one in a series of posts on the Nikon Z6 and Z7. You should be able to find all the posts about that camera in the Category List on the right sidebar, below the Articles widget. There’s a drop-down menu there that you can use to get to all the posts in this… [Read More]

Nikon Z7 w/ 50/1.8S — face detection focus bias

December 16, 2018 By JimK 4 Comments

This is one in a series of posts on the Nikon Z6 and Z7. You should be able to find all the posts about that camera in the Category List on the right sidebar, below the Articles widget. There’s a drop-down menu there that you can use to get to all the posts in this… [Read More]

50/1.8 Nikkor S on Z7 — LoCA and focus shift

December 15, 2018 By JimK 2 Comments

This is one in a series of posts on the Nikon Z6 and Z7. You should be able to find all the posts about that camera in the Category List on the right sidebar, below the Articles widget. There’s a drop-down menu there that you can use to get to all the posts in this… [Read More]

  • 1
  • 2
  • 3
  • Next Page »
December 2018
SMTWTFS
« Nov Jan »
 1
2345678
9101112131415
16171819202122
23242526272829
3031 

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 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 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 Roles of camera and raw developer in determining color
  • chris on Zeiss Batis 135 on Nikon Z7
  • JimK on Zeiss Batis 135 on Nikon Z7
  • chris on Zeiss Batis 135 on Nikon Z7
  • FredD on Roles of camera and raw developer in determining color
  • JimK on Roles of camera and raw developer in determining color
  • JimK on Roles of camera and raw developer in determining color
  • Nate on Roles of camera and raw developer in determining color
  • Jack Hogan on Roles of camera and raw developer in determining color
  • Zé De Boni on Roles of camera and raw developer in determining color

Archives

Unless otherwise noted, all images copyright Jim Kasson.