nandbytes
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I cannot comment on these specific lenses but generally speaking Sony lenses have been known to be wider. For example the Sony 16-50mm APS-C was closer to 14mm without corrections.Looking at the PZ 16-35mm and new 20-70mm it is evident that Sony are relying on software corrections to correct distortion in a bid to make smaller lighter lenses, does anyone know if the corrected images show the proper focal length or whether there’ll be a certain amount of cropping of the image.
For example if shooting at 20mm on the 20-70mm will the corrected image show the full 20mm fov and therefore the uncorrected images could show an image slightly wider than 20mm, or is the uncorrected image a 20mm fov and therefore the corrected image is going to be narrower such as 21mm or 22mm fov?
The 20G is closer to 19mm, Alyn has shown that in his review:
Sony 20mm f/1.8 G Astrophotography Review + RAW Downloads
The Sony 24mm f/1.4 GM very quickly became my favourite lens of all time and is still in my opinion, the best lens ever made for landscape astrophotography. But I appreciate that a lot of people find the 24mm focal length quite restricting and tight and would prefer something a little wider. When
I am sure there are a few other examples too.
So I wouldn't worry too much about it.






