• 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 X2D

Hasselblad XCD 55V on X2D: bokeh examples

June 12, 2024 JimK Leave a Comment

LensRentals has loaned me a Hasselblad XCD 55mm f/2.5 V lens for testing.  I needed some banners for a newsletter I’m working on, so I took the XCD 55V out for a ramble. I stayed away from the nosebleed shutter speeds where the mechanical shutter of the lens gives, um, unusual bokeh. I shot wide… [Read More]

X2D

Hasselblad XCD 55V on X2D: focus curvature

June 11, 2024 JimK 4 Comments

LensRentals has loaned me a Hasselblad XCD 55mm f/2.5 V lens for testing.  Today I tested for focus curvature, using Roger Cicala’s test method. I found a flat surface with some texture, set the lens to wide open, focused about 5 meters away, and got this image: In order to show the in-focus area, I… [Read More]

X2D

Hasselblad XCD 55V on X2D: off-axis illumination falloff

June 9, 2024 JimK Leave a Comment

LensRentals has loaned me a Hasselblad XCD 55mm f/2.5 V lens for testing. Today I tested illumination falloff off-axis. I focused the lens to infinity, and made four photographs of a white wall with the camera rotated 90 degrees between each image. I used ISO 64 and the mechanical shutter. I brought all four images… [Read More]

X2D

Hasselblad XCD 55V on X2D: real world high speed mechanical shutter bokeh

June 8, 2024 JimK Leave a Comment

LensRentals has loaned me a Hasselblad XCD 55mm f/2.5 V lens for testing. In my testing this week, I determined that the lens exhibits the same kind of strange bokeh at 1/2000 second mechanical shutter speed as the 38V, and has fewer of these issues than the 90V. Today I did some testing with real… [Read More]

X2D

Hasselblad XCD 55V on X2D: Siemens star

June 7, 2024 JimK Leave a Comment

LensRentals has loaned me a Hasselblad XCD 55mm f/2.5 V lens for testing. Today I tested it with a Zeiss-printed Siemens Star. Details: Target distance about 7 meters ISO 64 Electronic shutter Manual exposure Manual focusing with 15-shot symmetric focus bracketing, extra small step size. 5-second exposure delay Edelkrone electrical tripod Arca Swiss C1 head… [Read More]

X2D

  • « Previous Page
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • …
  • 16
  • 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 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

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

Unless otherwise noted, all images copyright Jim Kasson.