06-16-2016, 10:17 AM
(This post was last modified: 06-16-2016, 10:23 AM by Brightcolours.)
The SLRgear/imageing resource resolution results have an oddity in them that make weary of the precision of how they carry out their tests (again). Their results claim that the corners get worse going from f1.8 to f2.
Besides that, PZ's test results regarding the EF 50mm f1.8 STM are much better at the border/extreme than the SLRgear results show, again I place more confidence in the results PZ gets.
Also note that SLRgear claims diffraction limiting sets in at f11 on a A7r. While when one tests that (see PZ tests for instance, or lenstip tests) it clearly sets in at f8. How come their (SLRgear) measurements do not show this?
My estimation is that the Sony will measure a bit better wide open at the border/extremes, and that the bokeh may be a little less desirable again compared to the Canon, due to the aspherical element.
Just a nice inexpensive lens, like the Canon. Except that it is not that inexpensive (twice the price).
Besides that, PZ's test results regarding the EF 50mm f1.8 STM are much better at the border/extreme than the SLRgear results show, again I place more confidence in the results PZ gets.
Also note that SLRgear claims diffraction limiting sets in at f11 on a A7r. While when one tests that (see PZ tests for instance, or lenstip tests) it clearly sets in at f8. How come their (SLRgear) measurements do not show this?
My estimation is that the Sony will measure a bit better wide open at the border/extremes, and that the bokeh may be a little less desirable again compared to the Canon, due to the aspherical element.
Just a nice inexpensive lens, like the Canon. Except that it is not that inexpensive (twice the price).