02-08-2018, 09:41 AM
(This post was last modified: 02-08-2018, 09:42 AM by Brightcolours.)
If the designers corrected the huge barrel distortion at the wide end, they do not need to think about a bigger front element, a bigger filter size, because the vignetting is not there then...
And bigger front elements means much more weight, and a higher price.
And bigger front elements means much more weight, and a higher price.