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Hasselblad X2DII shadow noise analysis

January 7, 2026 JimK 1 Comment

I have long been looking for how to present the results of the photon transfer function analysis that I perform on sensors. Below is my now-standard presentation, for the Hasselblad X2DII.   This is a normalized presentation, with the vertical axis normalized to sensor height in pixels using the same normalization factor (1600/height, or height/1600,… [Read More]

X2DII

Why can’t all camera manufacturers do this?

January 3, 2026 JimK Leave a Comment

  I’ve got piles of hoods that don’t let me know what lenses they are for. the XCD lens hoods — at least the ones I have — all identify the lenses they work with.

X2D, X2DII

Hasselblad XCD 35-100E close focus bokeh examples

January 1, 2026 JimK Leave a Comment

These are with a slow shutter speed and the leaf shutter on the X2D II. The far distant bokeh looks good to me. I’m not so sure about the transfocal bokeh.    

X2DII

Hasselblad XCD 35-100E focus curvature

December 31, 2025 JimK Leave a Comment

There is very little.      

X2DII

Hasselblad XCD 35-100E f/2.8-5.6 distortion

December 31, 2025 JimK Leave a Comment

Pretty low for this kind of lens. I turned off Lr’s lens corrections, but there make be som esilent corrections being performed.        

X2D, 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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