Tricky Numbers, or How 61% AF Accuracy on Fujifilm X-H2s are Better than 85% Accuracy on Sony A9

I posted an X-H2s autofocus test made by a German guy specialised in Wildlife photography, and translated it for you here.

The particular thing about his test: he set up a dedicated “bird tracking test track“, which basically allows him to compare the various cameras for bird tracking under comparable conditions.

On his test track, he got the following results for the Fujifilm X-H2s.

  • 30 out of 49 = 61% tack sharp images
  • 33 out of 47 = 70% tack sharp images

Some people were disappointed by those numbers, especially when compared to the 85-90% hit rate of stacked Sony cameras.

But percentage alone is not the whole story. You have to factor in the frames per second into the equation.

So let’s do just that (taking the worst results he got with X-H2s – 61%)

  • Fuji X-H2s: 61% of 40 images per second = 24 sharp images per second
  • Sony A9: 85% of 20 images per second = 17 sharp images per second
  • Sony A1: 90% of 30 images per second = 27 sharp images per second
  • Sony A7IV: 50% of 10 images per second = 5 sharp images

Conclusion:

In his test, when every camera is shot at its maximum burst, the X-H2s will give you more sharp images than any other camera, except for the Sony A1.

If you want to get 3 additional sharp images per second (27 instead of 24), then you have to spend $4,000 more and get the very expensive Sony A1.

My take:

I want Fujifilm to beat any other brand in terms of sharp images per second. So I am not happy with the result of the X-H2s. I want a hit rate of 80%+ at 40fps.

And I also want an even smarter autofocus and the camera to match in terms of AF smartness in this case is the new Sony A7rV.

That’s why I am not completely satisfied and I want firmware, Fujifilm… more firmware in 2023!

Tracking Birds with Fujifilm X-H2S vs Sony Stacked Cameras (Best Test I Have Seen so Far)

The German Youtube channel AmazingNature Alpha (who shoots a lot with Sony cameras)tested the Fujifilm X-H2s autofocus with the XF200mmF2 and the XF150-600mmF5.6-8.

Now, there are lots of autofocus tests for wildlife out there. But what sets this one apart from all the others? Well, I’ll tell you below.

Before we dive into it, here are few considerations he makes.

NOTE: it’s in German, so you get it “Patrick-translated” below.

Gear Used

General Considerations:

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TESTED: Sirui 1.25x Anamorphic Adapter on Fujifilm X-H2 and XF33mm f/1.4

Let’s catch up with a piece of gear that I can’t remember I have ever talked about: the Sirui 1.25x Anamorphic Adapter.

As far as I can see it is available at Amazon since October 2022, but the Japanese guys at Mapcamera, who have now shared a test of the adapter on a Fujifilm X-H2 with XF33mmF1.4 lens, say that it will be available only this month.

Anyways, it’s something I have not talked about so far, so here is how it works.

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Viltrox 75mm f/1.2 Officially Announced

Viltrox has finally announced the Viltrox 75mm f/1.2.

It costs $549 (as we told you already) and at the time of this post it is not available for pre-order, but when it will be, you will find it at:

Main Specs:

  • F1.2 Large Aperture
  • Shallow Depth of Field
  • HD Nano Multi-Layer Coating
  • 16/11 Elements Premium Optical Construction
  • Excellent Low-light Performance
  • Ultra High Image Resolution
  • Precise&Fast Autofocusing
  • Video Shooting Optimization
  • Three-layer Protection Waterproof & Dustproof Design

We have some first looks below:

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