Pre-order Sony G lenses: FE 24mm f/2.8, 40mm f/2.5, 50mm f/2.5
curious80 wrote:
My understanding is that lenstip results are based on uncorrected RAW - which is why they can see the distortion at the first place. So the edge weakness they see should not be due to digital correction.
Ironically it is quite possible that their edge sharpness results look worse because of using un-corrected output. Lenses with SW-correction based designs tend to have slightly wider field of view when uncorrected and some of that gets cropped during correction. So what lenstip is testing includes some edges of the image which will be cropped away in the final shot. So that could contribute to the weaker performance they report. My contention still is that they should test the lens as it has been designed, including all the SW corrections and then report the findings on the final result.
Since it’s uncorrected raw, it’s not corrected for lateral CA either, which is easy to correct in digitally.
NicholasRab wrote
No question, but at least in the lens tip test the edge resolution really suffers, which could in part be due to this distortion correction.Ironically it is quite possible that their edge sharpness results look worse because of using un-corrected output. Lenses with SW-correction based designs tend to have slightly wider field of view when uncorrected and some of that gets cropped during correction. So what lenstip is testing includes some edges of the image which will be cropped away in the final shot. So that could contribute to the weaker performance they report. My contention still is that they should test the lens as it has been designed, including all the SW corrections and then report the findings on the final result.
Since it’s uncorrected raw, it’s not corrected for lateral CA either, which is easy to correct in digitally.