Erik Kaffehr
Veteran Member
Hi,
A few months after getting the A7rII I ran some comparisons with my Hasselblad 555/ELD combined with my P45+.
These images were shot with significant care, using the PM5 viewfinder with a 3X monocular thus having 9X magnification. The camera was on tripod with MLU and electrical release.
On the Sony I used magnified live view for focusing, EFSC, self timer and no image stabilisation off.
On the Hasselblad I used the 100 mm/3.5 at f/8 and the Distagon 40/4 at f/11, while on the Sony I used the 90/2.8G macro at f/5.6 and the Canon 16-35/4L zoom at 25 mm at f/8.
Aperture usage was based on equivalent aperture.
Most of the images are actual pixel crops.
http://echophoto.dnsalias.net/ekr/Articles/P45+_vs_a7rII/index2.html
My conclusions?
The Zeiss lenses were designed in the film era. My experience is that the Sonnars are very good, the Distagons loose quite a lot of sharpness towards the edge. Of the Planars I used three, the 100/3.5 CF is optimised for infinity where it is very sharp. The Planar 120/4 is designed for close up work. The Planar 80/2.8 CFE is in between I guess. I did make some very good images with that lens.
Newly designed lenses are probably better.
The raw images are here: http://echophoto.dnsalias.net/ekr/Articles/P45+_vs_a7rII/index.html
Best regards
Erik
A few months after getting the A7rII I ran some comparisons with my Hasselblad 555/ELD combined with my P45+.
These images were shot with significant care, using the PM5 viewfinder with a 3X monocular thus having 9X magnification. The camera was on tripod with MLU and electrical release.
On the Sony I used magnified live view for focusing, EFSC, self timer and no image stabilisation off.
On the Hasselblad I used the 100 mm/3.5 at f/8 and the Distagon 40/4 at f/11, while on the Sony I used the 90/2.8G macro at f/5.6 and the Canon 16-35/4L zoom at 25 mm at f/8.
Aperture usage was based on equivalent aperture.
Most of the images are actual pixel crops.
http://echophoto.dnsalias.net/ekr/Articles/P45+_vs_a7rII/index2.html
My conclusions?
- Not a lot between the Hasselblad 100/3.5 and the Sony 90/2.8G, at least in these images.
- The Hasselblad Distagon 40/4 CF FLE is quite weak. There is a much better version called 40/4 CFE IF, that is not what I have. The Canon lens is significantly better than the 40/4 CF FLE of axis but drops below the Hasselblad lens in the extreme corners.
The Zeiss lenses were designed in the film era. My experience is that the Sonnars are very good, the Distagons loose quite a lot of sharpness towards the edge. Of the Planars I used three, the 100/3.5 CF is optimised for infinity where it is very sharp. The Planar 120/4 is designed for close up work. The Planar 80/2.8 CFE is in between I guess. I did make some very good images with that lens.
Newly designed lenses are probably better.
The raw images are here: http://echophoto.dnsalias.net/ekr/Articles/P45+_vs_a7rII/index.html
Best regards
Erik
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