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Archives for November 2019

a7RIV vs GFX 100 landscape IQ with GigaPixel AI — part 2

November 26, 2019 JimK 12 Comments

In the last post, I upsampled files from the Fujifilm 110 mm f/2 on the GFX 100 and the Zeiss Otus 85 mm f/1.4 on the a7RIV, using Topaz GigaPixel AI, with surprising results. I had concerns about possible under-the-hood sharpening differences with Lightroom, and also with Lightroom’s export resizing, so I decided to process… [Read More]

a7RIV, GFX 100

Sony a7RIV vs Fuji GFX 100 landscape IQ with GigaPixel AI

November 22, 2019 JimK 7 Comments

In the previous post, I looked at landscape images from the Fujifilm 110 mm f/2 on the GFX 100 and the Zeiss Otus 85 mm f/1.4 on the a7RIV. The crops were magnified to about 200% using Lightroom’s export feature. The Fuji images looked much better, even at f/11 on the Fuji lens and f/8… [Read More]

a7RIV, GFX 100

Sony a7RIV vs Fuji GFX 100 landscape IQ

November 21, 2019 JimK 40 Comments

DPR recently declared the a7RIV the best landscape camera. They didn’t consider the GFX 100. I’ve done some tests of the two cameras, with the Fuji coming out on top in image quality. Today, I did a comparison of the two cameras aimed particularly at landscape use. I used very sharp lenses: the Fujifilm 110… [Read More]

a7RIV, GFX 100

Fuji 45 mm f/2.8 on GFX 100

November 20, 2019 JimK Leave a Comment

In this post, I compared the Sigma 35 mm f/1.2 lens on the Sony a7RIV with the Fujifilm 45 mm f/2.8 lens on the Fuji GFX 100, using a Siemens Star target. In this post, I’ll show you some images of foliage using the Fujifilm combination. Here’s the scene: I set up the camera as… [Read More]

GFX 100

Sigma 35 mm f/1.2 lens on Sony a7RIV

November 20, 2019 JimK Leave a Comment

In this post, I compared the Sigma 35 mm f/1.2 lens on the Sony a7RIV with the Fujifilm 45 mm f/2.8 lens on the Fuji GFX 100, using a Siemens Star target. In this post, I’ll show you some images of foliage using the Sony/Sigma combination. Here’s the scene: I set up the camera as… [Read More]

a7RIV

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November 2019
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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

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