Good thing I'm no influencer.
Bokeh Masters, Wettbewerb, Ablauf
www.bokeh-masters.com
Read the process part first and then go to comparison to do your own double blind test.
Only after completing your own go to home and look at the
all star results, in order to not spoil it for you.
My results:
First: Schneider 150mm f/3.5 (Medium Format)
Second: EF 85mm f/1.2 L II on APS-C
Third: EF 300mm f/2.8 L IS II (At longer focal lengths/narrower angles of view there's not much field curvature that needs correcting)
Fourth: Olympus 45mm f/1.8 (Many MFT lenses leave the correction to software in the camera's processing engine - I know no specifics for this lens)
Fifth: Nikon AF-S 50mm f/1.8G (2011 budget design)
Sixth: Sigma 85mm f/1.4 EX DG HSM on FF (2010 design well before the obsession with FF correction that marks the later ART series)
Seventh: Sigma 85mm f/1.4 EX DG HSM on APS-C (2010 design well before the obsession with FF correction that marks the later ART series)
Eighth: Nikon 50mm f/1.8 (unknown version - presumably pre-AF era since no AF or AF-S in designation)
Ninth: EF 85mm f/1.2 L II on FF
Tenth: Nikon AF-S 50mm f/1.8G (older, less corrected design)
Eleventh: Leica 50mm f/2 Apo-Summicron-M ASPH on FF
Twelvth: Canon 85mm f/1.8 on FF
Thirteenth: Fuji 56mm f/1.2 FX R on APS-C
Fourteenth: Tamron SP 70-200mm f/2.8 VC on FF (2012 version?)
Fifteenth: EF 100mm f/2.8 Macro on APS-C (non-L) - This is the first one that surprised me as it is optimized for close focus and has significant flat field correction.
Sixteenth: Nikon 85mm f/1.4 on FF (Unknown version - presumably pre-AF era since no AF or AF-S in designation)
Seventeenth: Sigma 50mm f/1.4 EX DG HSM on APS-C (2008 design well before the obsession with FF correction that marks the later ART series)
Eighteenth: Sony 35mm f/2.8 FE ZA (First E-mount lens on list - only scored a 3)
Nineteenth: Leica 50mm f/0.96 Noctilux-M ASPH shot at f/2.4 on FF
Twentieth: Sigma 50mm f/2.8 DG Macro on FF (1998 design. Though a macro, doesn't show as much (if any) flat field correction as more expensive macro lenses)
Twenty-first: Sony 50mm f/1.8 E OSS on APS-C (cheap 2011 design)
Twenty-second: Nikkor AF-S 50mm f/1.4G on FF(2011 standard double Gauss design)
Everything else scored 2 or less points. This included another example of the EF 85mm f/1.2 L II on APS-C and of the EF 85mm f/1.8 on FF. Also included the EF 100mm f/2.8 L Macro that is highly corrected for field curvature and optimized for close focus, two Canon EF 50mm f/1.8 STM, the current EF 35mm f/2 IS, and both Canon FD 85mm f/1.8 lenses. All of the zooms other than the Tamron listed above.
Dead last: One of the Sigma 50mm f/1.4 ART samples. The other one scored 1 point.
On the global poll, the older sigmas beat the "sharper" ART lenses hands down. Other than the Otus at the top of the list, most of the top 15 are older designs less corrected for flat field and thus "softer" on the edges and corners than newer high end designs. The Otus is an interesting lens with very flat field of focus but distinctive mild astigmatism on the outer 1/3 of the field.