A bokeh comparison test I did with the 135mm f2.8 STF and the Leica 90mm APO
I recently acquired a 135mm f2.8 Smooth Transitional Focus lens and wanted to see how good the acclaimed "bokeh machine" really is. The STF is mounted on an A7 with the LA-EA3 adapter. To adjust for FOV I shot the 90APO on a NEX-7 and used f2 instead of f2.8. Pictures were adjusted in photoshop for netural WB and the removal of compression artifacts.
I tested for both foreground and background bokeh, and can confirm that contrary to what I've read elsewhere, there is essentially no difference between them for the STF.
Victor is too lazy for DSLRs
Sony A7rII Kolari mod
Noctilux ASPH, 35lux FLE, 50 APO ASPH, 75 APO cron, 21lux, Sony/Minolta 135mm STF