Primes Comparison Map #2 (m4/3 vs Canon vs Nikon)

Started Jun 5, 2012 | Discussions thread
noirdesir
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Re: You are correct about microlenses on Olympus DSLRs
In reply to Rriley, Jun 6, 2012

Rriley wrote:

bobn2 wrote:

Mount...register...diagonal...ratio
FD.....42....... 43.3.......0.97
SR.....43.5.....43.3.......1.00
EF.....44........43.3.......1.02
SA.....44........28.4.......1.55
CY.....45.5.....43.3.......1.05
K.......45.56...43.3.......1.05
M42...45.56...43.3.......1.05
OM.....46.......43.3.......1.06
F........46.5....43.3.......1.07
LR......47.......43.3.......1.09
CAF....48.......43.3.......1.11

So, 'outlier' is the right word The FT mount has a register to diagonal ratio of 1.79. The next down is Sigma SA, which is 1.55, but that's a knock-off of the EF mount with an APS-C sensor, next after that is Contax AF at 1.11, of the SLR mounts.

funny you actually mention APSC when there are only 1 diagonal of them there

I have include all the 'designed for' APS-C mounts. Even if I include the FF mounts also used for APS-C, the FT mount comes in as an outlier:
EF-S.....44.......26.7.......1.65
A.........44.5.....28.4.......1.57
KD.......45.56...28.4.......1.60
F DX.....46.5....28.4.......1.64

and SA....44.......24.87......1.77
that 0.02 means it isnt an outlier

Riley, you know perfectly well that FT was designed with the sensor size known. If you look at all (D)SLR lens mounts with the film/sensor known when the mount was designed, it is absolutely obvious that FT is the outlier.

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