Specs
Markings thingy
New Ver 02 firmware
Improves continuous autofocus (AF-C) performance while zooming in when attached to ILCE-9 ( Latest system software update required)
http://www.sony.com.au/electronics/support/lenses-e-mount-lenses/sel100400gm
Review
100mm MTF
400mm MTF
https://www.ephotozine.com/article/sony-fe-100-400mm-f-4-5-5-6-g-master-oss-review-31417
Review
100mm Sharpness is excellent for this lens. At wide open at 100mm (f/4.5), center sharpness is very good, becoming slightly sharper again at f/8. Sharpness remains excellent up to f/16, dropping off slightly at f/22 and becoming slightly soft at f/32. It's likely that you'll only notice this softness if examining at 100%. At the edges, the sharpest results can be seen between f/16 and f/22.
400mm Center sharpness is at its best between f/8 and f/16, but it is still excellent at f/5.6 and f/22. There’s more obvious softness at f/32 and f/40, but you might be able to get away with it at normal printing and web sizes. For edge sharpness, the best results can be seen between f/8 and f/22.
http://www.photographyblog.com/reviews/sony_fe_100_400mm_f4_5_5_6_gm_oss_review/
Review with measurements
Samples, same meetup
https://www.dpreview.com/samples/0313885445/sony-fe-100-400mm-f4-5-5-6-gm-sample-gallery
Fast "review" based on brief bloggers meetup
https://www.cameralabs.com/sony-fe-100-400mm-f4-5-5-6-gm-oss-review/
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