Sony A7 III and Canon EF f/4 L Series Sample Images

March 23, 2018 | Mark Goldstein | Comment |
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We've been trying out the new Sony A7 III full-frame camera with some older Canon f/4 L series lenses - namely the EF 24-105mm F/4L IS USM, EF 17-40mm F/4L USM and the EF 70-200mm F/4L USM - mounted via a Sigma MC-11 converter.

These three lenses combined with the A7 III and Sigma converter make for a compact, lightweight kit that covers a useful focal range of 17-200mm, all with a constant aperture of f/4. Even better, none of these lenses are particularly expensive for Canon L glass, with lots of examples available on the second-hand market.

Out in the field, amazingly all three worked very well with the A7 III, even supporting Eye Focus in Continuous AF mode, one of the new camera's killer functions.

There was one main exception though - the EF 70-200mm F/4 L was a little hit and miss at the 200mm focal length, sometimes auto-focusing almost instantly, sometimes refusing to lock onto the subject and preferring to hunt around without success instead. I used most of the A7 III's available AF modes and Focus Areas to try and avoid this issue, but have come up short so far. I haven't yet tried the Metabones Canon EF Lens to Sony E Mount T Smart adapter, which anecdotally at least is claimed to be more reliable with Canon lenses than the Sigma converter.

Still, I didn't expect to get such a good hit rate from this combination of new camera and old lenses, and if the Metabones adapter improves the performance of the EF 70-200mm F/4 L lens (or if the newer IS version of the lens is more reliable), they certainly provide an affordable way of covering a wide focal range whilst offering great image quality.

A gallery of sample images shot using the Sony A7 III full-frame camera with some older Canon f/4 L series lenses.

Sony A7 III and Canon EF f/4 L Series JPEG Images

Sample RAW Images

The Sony A7 III enables users to capture RAW and JPEG format files. We've provided some Sony RAW (ARW) samples for you to download (thumbnail images shown below are not 100% representative).

1/125s · f/4 · ISO 250
105mm (35mm)
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1/1000s · f/4 · ISO 100
55mm (35mm)
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1/125s · f/4 · ISO 125
105mm (35mm)
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1/125s · f/4 · ISO 160
105mm (35mm)
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1/160s · f/4 · ISO 100
105mm (35mm)
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1/250s · f/4 · ISO 100
24mm (35mm)
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1/160s · f/4 · ISO 100
105mm (35mm)
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1/60s · f/8 · ISO 250
24mm (35mm)
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1/125s · f/4 · ISO 400
105mm (35mm)
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1/60s · f/8 · ISO 160
17mm (35mm)
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1/60s · f/11 · ISO 3200
17mm (35mm)
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1/60s · f/11 · ISO 5000
40mm (35mm)
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1/60s · f/4 · ISO 250
17mm (35mm)
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1/60s · f/4 · ISO 400
17mm (35mm)
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1/160s · f/4 · ISO 100
17mm (35mm)
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1/500s · f/4 · ISO 100
24mm (35mm)
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1/640s · f/4 · ISO 100
29mm (35mm)
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1/1000s · f/4 · ISO 100
36mm (35mm)
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1/60s · f/4 · ISO 1250
17mm (35mm)
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1/60s · f/4 · ISO 1250
23mm (35mm)
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1/60s · f/11 · ISO 1250
17mm (35mm)
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1/60s · f/11 · ISO 1600
31mm (35mm)
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1/60s · f/4 · ISO 5000
17mm (35mm)
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1/60s · f/11 · ISO 160
17mm (35mm)
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1/60s · f/11 · ISO 200
17mm (35mm)
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1/60s · f/4 · ISO 125
17mm (35mm)
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1/60s · f/11 · ISO 100
17mm (35mm)
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1/60s · f/4 · ISO 125
17mm (35mm)
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1/60s · f/11 · ISO 100
17mm (35mm)
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1/60s · f/11 · ISO 100
40mm (35mm)
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1/250s · f/11 · ISO 4000
200mm (35mm)
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1/250s · f/11 · ISO 4000
200mm (35mm)
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1/200s · f/4 · ISO 5000
176mm (35mm)
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1/250s · f/4 · ISO 250
200mm (35mm)
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1/640s · f/4 · ISO 100
200mm (35mm)
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1/250s · f/5.6 · ISO 160
200mm (35mm)
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1/250s · f/4 · ISO 320
200mm (35mm)
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1/800s · f/4 · ISO 100
200mm (35mm)
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1/320s · f/4 · ISO 100
70mm (35mm)
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1/200s · f/4 · ISO 125
168mm (35mm)
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1/100s · f/8 · ISO 200
81mm (35mm)
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1/250s · f/4 · ISO 250
200mm (35mm)
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1/800s · f/4 · ISO 100
200mm (35mm)
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1/200s · f/8 · ISO 100
70mm (35mm)
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1/250s · f/4 · ISO 200
200mm (35mm)
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1/200s · f/4 · ISO 100
140mm (35mm)
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1/250s · f/4 · ISO 125
200mm (35mm)
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1/250s · f/4 · ISO 125
200mm (35mm)
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1/1250s · f/4 · ISO 100
200mm (35mm)
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1/125s · f/11 · ISO 100
70mm (35mm)
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1/250s · f/4 · ISO 200
200mm (35mm)
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1/400s · f/8 · ISO 100
70mm (35mm)
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1/640s · f/4 · ISO 100
176mm (35mm)
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1/250s · f/4 · ISO 250
200mm (35mm)
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1/250s · f/4 · ISO 640
200mm (35mm)
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1/60s · f/11 · ISO 160
17mm (35mm)
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1/320s · f/8 · ISO 100
40mm (35mm)
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1/160s · f/8 · ISO 100
22mm (35mm)
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1/200s · f/4 · ISO 100
35mm (35mm)
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1/80s · f/4 · ISO 100
17mm (35mm)
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1/800s · f/4 · ISO 100
200mm (35mm)
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1/2000s · f/4 · ISO 100
200mm (35mm)
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1/60s · f/9 · ISO 500
47mm (35mm)
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1/125s · f/4 · ISO 250
105mm (35mm)
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1/125s · f/4 · ISO 200
105mm (35mm)
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1/60s · f/8 · ISO 5000
17mm (35mm)
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