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From da lab ...
#21
(06-16-2021, 06:03 AM)Brightcolours Wrote: The corners have excess FOV, the horizontal and vertical center lines do not. The corners get stretched and the excess gets chopped off, leaving you with the same megapixels you started with. Just with lower sharpness in the stretched areas.
  ......... surely there must be some some drop in Mps if the black excess gets chopped off ??
Dave's clichés
#22
(06-16-2021, 09:49 AM)davidmanze Wrote:
(06-16-2021, 06:03 AM)Brightcolours Wrote: The corners have excess FOV, the horizontal and vertical center lines do not. The corners get stretched and the excess gets chopped off, leaving you with the same megapixels you started with. Just with lower sharpness in the stretched areas.
  ......... surely there must be some some drop in Mps if the black excess gets chopped off ??

No, the "black excess" is stretched out of the "MP" frame, and only then chopped off. The corrected image is bigger than the original distorted image, before all the chopping.
#23
I've reread a few reviews here in the Zone and it looks like there's no getting away from this kind of auto-correction being ubiquitous, at least in lenses that are not "dumb". Never thought I'd be the one to bemoan the onset of modernity and yearn for the days of yore, though. Smile
  


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