Sony's new curved sensor - this is a big deal

Started Jun 16, 2014 | Discussions thread
TrojMacReady Veteran Member • Posts: 8,729
Re: so... increase body to decrease lens cost - i.e. peeing against the wind, right?

akustykmagmanetpl wrote:

TrojMacReady wrote:

2 mounts for still cameras, A and E. How many does Canon have?

This whole concept is for fixed lens cameras, even according to their own propositions.

that isn't so obvious to me.

Canon has technically speaking 3 mounts, but if I'm not mistaken they are all physically (dimensions and electronic contacts layout) the same. what changes is flange (EF-M against the rest) and in case of Canon proprietary EF-S lens - artificial mechanical obstruction - if you take any third party APS-C lens for Canon it fits normal EF camera and works on them (i.e. Tokina 12-24 or Sigma 18-125 to name the lens I tested myself).

Sony as such has 4 different options: FF or APS-C and mirror(ed) or mirrorless. although they are to some degree interchangable

but my point wasn't as much about the total amount but about the fact that Sony had introduced quite a lot of incompatibility issues in a short period. if you make a timeline of Canon's AF system mounts then you get:

EF - 1987

EF-S - 2003

EF-M - 2013

since the takeover of Konica-Minolta in 2006 Sony has added 3 new mounts. that's 3 in 8 years compared to 3 in 27 years and explains quite well why people are confused with Sony offering and where the "give us another mount, Sony" jokes come from.

No, again there are 2 mounts, covering FF, which leaves the option to produce lenses covering a smaller image circle for smaller sensors, such as APS-C. And the minolta A mount was FF from the start, for one because it was used on 35mm film bodies. Even if your claim is that Sony introduced APS-C format A mount cameras, you'd be wrong, since Minolta did that before them.

For example, I'm using a sharp 135mm f/2.8 prime from 1987 on modern A mount bodies covering both FF and APS-C formats. It focuses fast and images are stabilized.

With an adapter the same can be said using it on E mount bodies, minus stabilization.

And it even works vice versa using APS-C format lenses on FF sensor equipped bodies. Fully functional, but obviously not with a FF image circle, minus exceptions with some APS-C lenses that nearly or fully cover a FF sensor at certain focal lengths. This cannot be said of Canon, where APS-C lenses will not fit FF bodies.

To put the compatibility and usual "the sky is falling for Sony lenses or lack of" claims into perspective.

Sure, Sony needs to produce lenses covering the different formats for both mounts and they are (never fast enough). But many of the FF lenses (especially those around 70mm and above) are just as welcome for the APS-C bodies, because those would have been similar in size and weight had they just covered an APS-C circle.

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