11-11-2013, 02:26 PM
(This post was last modified: 11-12-2013, 10:06 AM by stoppingdown.)
Quote:Did Lenstip measure the border resolution when it is foucused at the center then the field curvature lead to their low boder resolution?
Is it really important? I mean: let's suppose the problem is field curvature & focus point. From an optic point of view, I agree that it's more precise to say "the lens suffers from field curvature" rather than "it's not sharp at borders". But then, on the field, if I want to take a photo with sharp details from center to border, in any case I'll see a problem. In the end, the lens would be not that sharp, independently on which is the exact cause. Right?
stoppingdown.net
Sony a6300, Sony a6000, Sony NEX-6, Sony E 10-18mm F4 OSS, Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS, Sony FE 70-200mm F4 G OSS, Sigma 150-600mm Æ’/5-6.3 DG OS HSM Contemporary, Samyang 12mm Æ’/2, Sigma 30mm F2.8 DN | A, Meyer Gorlitz Trioplan 100mm Æ’/2.8, Samyang 8mm Æ’/3.5 fish-eye II | Zenit Helios 44-2 58mm Æ’/2
Plus some legacy Nikkor lenses.
Sony a6300, Sony a6000, Sony NEX-6, Sony E 10-18mm F4 OSS, Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS, Sony FE 70-200mm F4 G OSS, Sigma 150-600mm Æ’/5-6.3 DG OS HSM Contemporary, Samyang 12mm Æ’/2, Sigma 30mm F2.8 DN | A, Meyer Gorlitz Trioplan 100mm Æ’/2.8, Samyang 8mm Æ’/3.5 fish-eye II | Zenit Helios 44-2 58mm Æ’/2
Plus some legacy Nikkor lenses.