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the last word

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

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The dubious search for GOATs

February 18, 2024 JimK 1 Comment

It’s always been the case that humans crave simplicity, even when it masks reality. Hence the tendency to construct, measure, and argue over scalar (one number) metrics, even though they almost always ignore nuance. Even better, in many people’s eyes, are scalar, binary metrics, such as picking winners and losers. These metrics are almost always… [Read More]

The Last Word

New camera: marginal gain or material advantage?

February 17, 2024 JimK 6 Comments

There’s an interesting thread in the MF forum of DPR. A Youtuber says that these days, a new camera offers only marginal gains, not a material advantage. The basic argument is that we have passed the era of quantum leaps in performance, and that today’s cameras are so capable that you can do almost any… [Read More]

The Last Word

The Nikon Zf has both an AA filter and pixel shift

February 13, 2024 JimK Leave a Comment

In the previous post, I said: …I’ll accept for the purposes of this discussion that no camera manufacturer uses pixel shift on cameras that have AA filters. I don’t know that that’s true, but I can’t think of any counterexamples. Erik Kaffehr found a counterexample, the Nikon Zf. In the spirit of scientific reproducibility, I… [Read More]

The Last Word

4-shot pixel shift and AA filters

February 11, 2024 JimK 7 Comments

This might turn out to be just one more hopeless “there’s something wrong on the Internet, and I must fix it” posts, but maybe it can rise above that. I’ll do my best. In a DPR forum, there is a thread about 4-shot pixel shifting. Under that protocol, which is available on Bayer color filter… [Read More]

The Last Word

Why are my developed files so big?

January 31, 2024 JimK 2 Comments

This is a pretty basic question, but I’ve been asked it a few times, and so I’m creating a post to which I can refer people. My raw file is x bytes, and when I develop it, it’s 3 times that big. How come? I’ll first answer the question assuming both files are uncompressed. Most… [Read More]

The Last Word

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Articles

  • About
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  • How to…
    • Backing up photographic images
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    • Examples
      • Bad and OK 200-600 at 600
      • Excellent 180-400 zoom
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      • Good 100mm lens on P1 P45+
      • Good 120mm MF lens
      • Good 18mm FF lens
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      • Good 35 mm FF lens
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      • Good 60 mm lens on IQ3-100
      • Good 63 mm MF lens
      • Good 65 mm FF lens
      • Good 85 mm FF lens
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      • Marginal 18mm lens
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      • Mildly problematic 55 mm FF lens
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      • OK Sony 600mm f/4
      • Pretty good 16-35 FF zoom
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    • Iteration using Newton’s Method

Category List

Recent Comments

  • Mike MacDonald on Your photograph looks like a painting?
  • Mike MacDonald on Your photograph looks like a painting?
  • bob lozano on The 16-Bit Fallacy: Why More Isn’t Always Better in Medium Format Cameras
  • 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

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