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You are here: Home / Archives for a7RIV

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

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

GFX 100 w/ Fuji 45/2.8 vs a7RIV w/ Sigma 35/1.2

November 18, 2019 JimK 2 Comments

I got a request to test the Fujifilm 45 mm f/2.8 on a GFX 100. I’m throwing the a7RIV with the excellent Sigma ART 35 mm f/1.2 E-mount lens into the mix for a comparison. I thought I’d do a visual test this time, and I’ve been finding images of a Siemens Star to be… [Read More]

a7RIV, GFX 100

Image quality effects of format size — example 2

November 16, 2019 JimK 1 Comment

In the preceding post, I showed you crops from this scene: from exposures with the following cameras: Fuji GFX 100 + Fuji GF63mm F/2.8 R WR (49.77mm equiv.) Sony A7R IV + Sony Planar T* FE 50mm F/1.4 ZA (50mm equiv.) Sigma SD Quattro + Sigma 30mm F/1.4 DC Art (45mm equiv.) Sony A6000 +… [Read More]

a7RIV, GFX 100

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Articles

  • About
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  • How to…
    • Backing up photographic images
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  • Lens screening testing
    • Equipment and Software
    • Examples
      • Bad and OK 200-600 at 600
      • Excellent 180-400 zoom
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      • 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
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      • 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
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      • 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
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      • Two 15mm FF lenses
    • Found a problem – now what?
    • Goals for this test
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    • Test instructions — postproduction
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    • Theory of the test
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  • Previsualization heresy
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  • Using in-camera histograms for ETTR
    • Acknowledgments
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    • Normal in-camera histograms
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    • 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

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  • 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
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  • JimK on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF
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  • JimK on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF
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  • Ivo de Man on Fuji 20-35/4 landscape field curvature at 23mm vs 23/4 GF

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