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Archives for 2025

Hasselblad X2D II summary

December 28, 2025 JimK Leave a Comment

The nice folks at LensRentals sent me a Hasselblad X2D II and a 35-100 XCD lens to test. Spoiler alert: I like them both. I’ll first talk about the camera, and then, in my next post, the lens. The X2D II is the camera the original X2D should have been. It’s fixed most of the… [Read More]

X2DII

Hasselblad XCD 35-100 mechanical vignetting

December 24, 2025 JimK Leave a Comment

I made some images of a out of focus point source at various places in the frame with the purpose of assaying the mechanical vignetting. I used the electronic shutter to avoid leaf-shutter artifacts. I combined the images from each focal length in Photoshop as layers, and selected Lighten as the blend mode so that… [Read More]

X2D, X2DII

Hasselblad XCD 35-100 OOF PSF vs shutter speed with leaf shutter

December 24, 2025 JimK Leave a Comment

Most leaf shutter cameras exhibit bokeh artifacts at high shutter speeds. The Hasselblad XCD 35-100 is no different. Here are some images of a distant out-of-focus point source at f/4 and 100mm:                 You can also seee some inion-ring bokeh from the way the lens was made.

X2D, X2DII

Hasselblad XCD 35-100 light falloff

December 23, 2025 JimK Leave a Comment

I tested the XCD 35-100 for light falloff by making 4 images rotated 90 degrees in turn, and averaging them in Photoshop. The subject was a white wall. The lens was focused at infinity. I developed the images in Lr with lens corrections turned off, converted them to monochrome, and reduced them in size so… [Read More]

X2D, X2DII

Hasselblad XCD 100-35 on X2D II, Siemens star, corner

December 22, 2025 JimK 6 Comments

In this post, I continue testing the XCD 35-100 lens. I mounted the lens to the X2D II, and clipped them onto an Arca Swiss C1 that was perched on a Foba camera stand. I set the camera up as follows: ISO 50 AFS-S 14-bit precision Mechanical shutter 4 second self timer Zeiss Siemens star… [Read More]

X2DII

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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

  • CarVac on Hasselblad X2DII shadow noise analysis
  • bruce on Input-Referred Noise in Image Sensors
  • bruce on Input-Referred Noise in Image Sensors
  • JimK on More Than Exposure: Understanding Total Light on the Sensor
  • Crack on More Than Exposure: Understanding Total Light on the Sensor
  • JimK on Hasselblad XCD 100-35 on X2D II, Siemens star, corner
  • Tom on Hasselblad XCD 100-35 on X2D II, Siemens star, corner
  • JimK on Hasselblad XCD 100-35 on X2D II, Siemens star, corner
  • Christer Almqvist on Hasselblad XCD 100-35 on X2D II, Siemens star, corner
  • JimK on Hasselblad XCD 100-35 on X2D II, Siemens star, corner

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