• 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 / Archives for 2024

Archives for 2024

Godox Lux Senior

June 1, 2024 JimK Leave a Comment

I have recently been called upon to make a series of informal portraits and small group images. I try to use mostly available light, but I’ve found that a bit of on-camera or nearly-on-camera flash fills the shadows in eye sockets and makes for a more pleasing image with a heck of a lot less… [Read More]

The Last Word

Backup, revisited

May 8, 2024 JimK 3 Comments

Many years ago, I wrote an article on backing up photographic images. Quite a few bytes have flowed under the figurative bridge since then, and the original article is sufficiently obsolete as to be nearly useless. So, I’m going to take another crack at it, with liberal self- plagiarization from the original article. In chemical… [Read More]

The Last Word

105/2.8 Nikkor S on Nikon Z8, Siemens Star

May 7, 2024 JimK 2 Comments

I started testing my new 105mm f/2.8 Z-mount Nikkor S lens. I put it on a Z8 body, mounted it on a Edelkron tripod with a Arca Swiss C1 head, and aimed it at a store-bought Zeiss Siemens Star target about 20 feet away. I shot 6 images at base ISO and 1/400 second using… [Read More]

Z8

Artificial intelligence and camera firmware

April 1, 2024 JimK 3 Comments

The folks at Lirpa Labs, the research arm of Sloof Lirpa, made a big announcement today. It’s a first for the company, which has previously developed standalone products. Lirpa will be providing firmware upgrades for Sony, Canon, Nikon, Leica, Hasselblad, and Fujifilm cameras. The Lirpa firmware will add entirely new artificial intelligence capabilities to those… [Read More]

The Last Word

Circles of confusion, and circles of the confused

March 13, 2024 JimK 6 Comments

When some folks who have been full frame camera users move to medium format cameras, they suffer from confusion about depth of field (DOF). When this confusion spreads to a group of people they become a circle of the confused (CotC). This post is intended to reduce the size of the CotC. Depth of field… [Read More]

The Last Word

  • « Previous Page
  • 1
  • …
  • 11
  • 12
  • 13
  • 14
  • 15
  • …
  • 18
  • Next Page »
May 2025
S M T W T F S
 123
45678910
11121314151617
18192021222324
25262728293031
« Apr    

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 How Sensor Noise Scales with Exposure Time
  • Štěpán Kaňa on Calculating reach for wildlife photography
  • Štěpán Kaňa on How Sensor Noise Scales with Exposure Time
  • JimK on Calculating reach for wildlife photography
  • Geofrey on Calculating reach for wildlife photography
  • JimK on Calculating reach for wildlife photography
  • Geofrey on Calculating reach for wildlife photography
  • Javier Sanchez on The 16-Bit Fallacy: Why More Isn’t Always Better in Medium Format Cameras
  • Mike MacDonald on Your photograph looks like a painting?
  • Mike MacDonald on Your photograph looks like a painting?

Archives

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

Unless otherwise noted, all images copyright Jim Kasson.