Imaging Resource posted a very detailed analysis of the new Sony 100mm f/2.8 STF G Master lens and concludes:
The Sony FE 100mm f/2.8 STF G has a physical aperture of f/2.8, but exposes like an f/5.6. And when it comes to DOF, it shoots like an f/4, but produces some of the most amazing, creamy bokeh we’ve ever seen. Given it’s price, it’s a somewhat special-purpose lens, but oh man; if you want amazing bokeh, this is the way to get it!
DPreview also tested the 100mm STF and writes:
Similar STF lenses tend to be manual focus or contrast detect-only, since peripheral light rays – the very ones the filter is designed to block out – are necessary for traditional phase-detect sensors to function. However, since (at least Sony’s) on-sensor PDAF sensors can still use more central light rays for focusing, focusing does still work, remarkably well in fact with the a7R II, even indoors, wide open.
Sebimagery posted a Sony FE 85mm 1.8 First look:
While it’s been deemed the “Budget 85” for Sony’s e-mount the performance is quite fantastic. For half the price of the Batis, this thing will be a solid performer. The advantage over the Batis is the customizable button on the side of the lens like all the G Master lenses have.
PcMag also tested the 85mm FE:
The FE 85mm F1.8 certainly wins out on price, coming in at about half that of the Zeiss Batis 1.8/85. Images look quite crisp, autofocus is speedy, and the lens maintains the same dust- and moisture-resistant design as other FE lenses.
German readers can also check out the 100mm review by Photoscala.
New Sony FE lens preorders:
85mm f/1.8 FE at Amazon, BHphoto, Adorama. PhotoPorstNeuwied.
100mm f/2.8 STF FE at Amazon, BHphoto, Adorama. PhotoPorstNeuwied.
HVL-F45RM Wireless Radio Flash at BHphoto, Adorama. PhotoPorstNeuwied.
