Olympus 7-14mm f/2.8 compared to Samyang 14mm f/2.8 via adapter on Panasonic GX8

Olympus 7-14mm f/2.8 compared to Samyang 14mm f/2.8 via adapter on Panasonic GX8
'For this post I did a direct comparison between my Olympus 7-14mm f/2.8 zoom at 9mm and my Samyang 14mm f/2.8 (Nikon mount) fitted to my Panasonic GX8 via a Metabones 0.64x Speed Booster. Both lenses were then approximating a 'full-frame' / 35mm sized sensor at 18mm. The idea being to see if there was any significant difference between the two.'
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The Olympus m.Zuiko 7-14mm f/2.8 - Just a fast lens or something more?

The Olympus m.Zuiko 7-14mm f/2.8 - Just a fast lens or something more?
'I've seen reviews of the f/2.8 'pro-spec' lenses from Olympus and Panasonic that claim, in terms of image quality, they are somewhat similar to other slower zooms and suffer in comparison with primes. I'll be discussing that in more depth in a later article, but in terms of the Olympus m.Zuiko 7-14mm f/2.8, I don't think thats true at all. In fact, I think it's a rather good lens.'
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Olympus 7-14mm f/2.8 - Samyang 14mm f/2.8 - GoPro - Real options for wide angle photography compared

Olympus 7-14mm f/2.8 - Samyang 14mm f/2.8 - GoPro - Real options for wide angle photography compared
'Above are three ultra wide angle alternatives. Each very different, but each offering something for creating images. They are:-
  • Nikon D750 + Samyang 14mm f/2.8 Full-Frame Lens 3:2 ratio
  • Panasonic GX8 + Olympus m.Zuiko 7-14mm f/2.8 Wide Angle Zoom 4:3 ratio
  • GoPro Hero4 Black 15mm (approx. 35mm equivalent) fisheye fixed aperture lens 4:3 ratio'
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