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

You are here: Home / Archives for GFX 50S

Sony 135 mm STF on GFX 50R

October 10, 2020 JimK 6 Comments

Yesterday I received a Fotodiox Sony A to GFX adapter, and today I mounted a Sony 135 SLT (apodized) lens on it. I mounted the lens on a GFX 50R.   To my surprise and great pleasure, it covers the 33×44 format with no vignetting. The equivalent FF focal length for the same image height… [Read More]

GFX 50S

Fuji 30/3.5, 32-64/4 on GFX 50x, foliage

July 26, 2020 JimK Leave a Comment

This is a continuation of a series of tests on the new Fujifilm 30mm f/3.5 G-mount lens. Today I’m comparing it with the Fuji 32-64 mm f/4 zoom. I did this earlier with a Siemens Star target, which is unforgiving; it was designed to be so. What if we just aim the camera at some… [Read More]

GFX 100, GFX 50S

Fuji 30 mm f/3.5 OOF PSFs

July 25, 2020 JimK Leave a Comment

There are two pieces to bokeh. The first is what things look like when they are well out of focus (OOF), and the second is how the transition from OOF to in-focus happens. The second is complicated, but the first is very simple. What you see when part of the image is well OOF is… [Read More]

GFX 100, GFX 50S

Fuji 30 mm f/3.5 focus curvature

July 25, 2020 JimK 1 Comment

I used the quick-and-dirty focus curvature test (Photoshop > Filter > Stylize > Find Edges, then convert to B&W) on a picture of my driveway and entry pavers with the 30 mm f/3.5 Fuji G-mount lens wide open on a GFX 50S.     This is excellent performance. Compare that with a more typical wide… [Read More]

GFX 100, GFX 50S

Fuji 30 mm f/3.5, 32-64 mm f/4, GFX 50S, Siemens Star

July 24, 2020 JimK Leave a Comment

I used to say that the Fujifilm 32-64 mm f/4 was the second best zoom I’ve ever used — after the Nikon 180-400/4. But then the Fuji 45-100 f/4 came along and I decided it was a two-way tie for second. The obvious standard for judging the new Fujifilm 30 mm f/3.5 is their great… [Read More]

GFX 100, GFX 50S

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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

  • 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

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