voidshatter
Member
Can't comment on the Canon 85mm f/1.2 Mark I, but according to my tests the Canon 85mm f/1.2 Mark II does vignette obviously on an IQ260.Assuming one is happy to focus manually, there are MF set-ups that go way beyond anything 35mm can deliver.
Care to run your comparisons for the following? -
80mm/1.9
85mm/1.2
50mm/1.2
All options available to medium format shooters using the Alpa FPS.
Kind regards,
Gerald.
In ascending order of angle of view:
James Webb Space Telescope = 131400mm f/20 in 35mm format
Hubble Space Telescope = 57600mm f/24 in 35mm format
Canon 1200mm f/5.6L
Zeiss 1700mm f/4 + IQ3100 = 1094mm f/2.6 in 35mm format
Takumar 6x7 800mm f/4 + IQ3100 = 515mm f/2.6 in 35mm format
Sigma 200-500mm f/2.8
Nikon Nikkor 300mm f/2.0
Canon FD 400mm f/2.8L + Mamiya ZD: 288mm f/2.0 in 35mm format
Olympus 250mm f/2.0
Zoomar 180mm f/1.3
Kilfitt 250mm f/1.3 + IQ3100 = 161mm f/0.84 in 35mm format
Kilfitt 240mm f/1.2 + IQ3100 = 155mm f/0.77 in 35mm format
Leica Leitz-IR 150mm f/0.85 (IR)
Mitakon 135mm f/1.4
Canon FD 200mm f/1.8L + IQ3100 = 129mm f/1.16 in 35mm format
Leica ELCAN 90mm f/1.0
Simlar 130mm f/1.0 + IQ3100 = 84mm f/0.64 in 35mm format
Leica Leitz Summar 75mm f/0.85 (x-ray)
ISCO 115mm f/1.4 + Aptus 12 = 74mm f/0.9 in 35mm format
Canon 85mm f/1.2 + IQ3100 = 55mm f/0.77 in 35mm format
Mamiya 80mm f/1.9 + IQ3100 = 52mm f/1.2 in 35mm format
Zeiss 50mm f/0.7
Zeiss 35mm f/0.7
Canon 50mm f/1.2 + IQ3100 = 32mm f/0.77 in 35mm format
Sigma 20mm f/1.4
It appears that regarding the degree of bokehliciousness, the advantage of the 35mm format is at the wide-angle/standard side, while the advantage of the medium format is at the telephoto side. Fullframe is always the king, and with a "crop" sensor like the IQ3100 (as compared against 6x7) even with those legendary telephoto lenses the lead can be marginal. A top-end user like Gerald should use options such like the Canon 8x8 digital back, Spectral Instruments 4x4, LargeSense 9x11 etc to fully unleash the potentials of each lens.