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You are here: Home / Archives for Nikon Z6/7

Nikon D5 and Z7 shadow noise under extreme conditions

January 10, 2022 JimK Leave a Comment

If you look at Bill Claff’s photographic dynamic range numbers, the D5 does better than the Z7 at extreme nosebleed ISO settings. There are some folks saying that’s not the case in the real world. I called my bookcase into service: Test protocol: RRS legs, C1 head Sigma 35/1.4 Art lens, directly attached to D5… [Read More]

Nikon Z6/7

4×5 Tmax 100 with a Nikon Z7, enhance details

December 3, 2021 JimK 3 Comments

In the last post, I showed you images that resulted from scanning 4×5 TMax 100 negatives with a Nikon Z7 in this setup: The results were good enough for excellent 17×22 inch prints, but there was more in the negative than the camera could resolve, which we saw by loking at better-quality scans using the… [Read More]

GFX 100, GFX 100S, Nikon Z6/7

Scanning 4×5 Tmax 100 with a Nikon Z7

December 2, 2021 JimK Leave a Comment

The last four posts have shown you the results of scanning one 4×5 TMax 100 negative with the GFX 100S. What happens if we try to use a lower resolution camera like the Nikon Z7? That’s what this post is about. Here’s the scanning setup with the Z7 attached: From left to right: Light source… [Read More]

GFX 100, GFX 100S, Nikon Z6/7

Full frame fisheye on GFX 50R, Z7

October 19, 2020 JimK 5 Comments

Someone asked me if I knew of a full frame fisheye for the GFX. That would be about an 11 mm fisheye. I didn’t know of one, but I do have a Nikon 8-15 mm f/3.5-4.5E zoom fisheye. I mounted it to the GFX 50R with a Kipon F-to-G adapter, and set it to the… [Read More]

GFX 50S, Nikon Z6/7

70-200/2.8 E vs S at 200mm, more quantitative

October 13, 2020 JimK 4 Comments

This is the twelfth in a series of posts about the Nikon 70-200 mm f/2.8 S lens for Nikon Z cameras. The series starts here. Yesterday, I told you about the quantitative differences that Imatest and I found between the Nikon 70-200 mm f/2.8 S and E lenses using a slanted edge and a Siemens… [Read More]

Nikon Z6/7

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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

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