• site home
  • blog home
  • galleries
  • contact
  • underwater
  • the bleeding edge

the last word

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

You are here: Home / 2015 / Archives for July 2015

Archives for July 2015

Kolari Vision thin-stack mod on a7II — 35/2.8 Zony FE

July 23, 2015 JimK 2 Comments

This is part 2 in a series of posts on the prototype Kolari Vision thin-stack sensor modification for the Sony a7II. The series starts here. There are many reasons to expect that lenses designed for the zero-thickness sensor stack of film will do better with a thinner stack on a digital sensor, and the previous… [Read More]

The Last Word

Kolari Vision thin-stack mod on a7II — 28mm Elmarit-M

July 23, 2015 JimK 18 Comments

The nice folks at Kolari Vision have loaned me a prototype of a Sony alpha 7 Mark II (hereafter called the a7II) which has been modified with a thinner sensor stack and removal of the anti-aliasing (AA) filter, with the aim of providing better corner performance with rangefinder legacy lenses. Though a prototype, I expect… [Read More]

The Last Word

Making pictures from one spot

July 21, 2015 JimK 5 Comments

I’ve been working on a series of photographs all made from the same location. I may move my tripod a few feet, but, since the hills which are the subject are several miles away, there is no discernible effect, other than my being able to point the camera in slightly different directions because of foliage… [Read More]

The Last Word

A call to action

July 16, 2015 JimK 3 Comments

This year is the 50th anniversary of Arlo Guthrie’s song-cum-rap “Alice’s Restaurant“. In the song, Guthrie tells the story about how an arrest for littering made him ineligible for the draft. Toward the end, he calls for draft resistance movement based on his experience. As far as I know, it didn’t go anywhere despite the… [Read More]

The Last Word

Stitchery

July 12, 2015 JimK 5 Comments

From the mailbag: Hi Jim, I have been following your landscape photos and they are absolutely brilliant. I saw you mentioned something about stitching and was wondering if you could detail your method. Reason I am asking is that I am going to get rid of my A7r in preparation for the M2 and will… [Read More]

The Last Word

  • « Previous Page
  • 1
  • 2
  • 3
  • 4
  • 5
  • Next Page »
July 2015
S M T W T F S
 1234
567891011
12131415161718
19202122232425
262728293031  
« Jun   Aug »

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

  • bob lozano on The 16-Bit Fallacy: Why More Isn’t Always Better in Medium Format Cameras
  • 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

Archives

Copyright © 2025 · Daily Dish Pro On Genesis Framework · WordPress · Log in

Unless otherwise noted, all images copyright Jim Kasson.