>>3412895We already have great lenses in dSLRs.
The dSLR mounts are way smaller than Sony FE (its not just diameter) because they are way further from the image sensor, so the FE is already a lot "bigger" than dSLR mounts.
The lenses arent going to be any simpler and lighter than equivalents on Sony.
Its really just not relevant.
Third parties are already getting in on it.
The Laowa 12mm f/2.8 ZERO-D, the 15mm f/4 1:1 macro, the 10-18mm FE zoom.
Making a pointlessly bigger rear element is just going to make the lens unnecessarily heavier. Which already gets significantly heavier as you increase the speed/aperture of the lens.
If you're not primarily going to use a lens wide open for whatever reasons (want more depth of field, or not sharp enough across the frame - landscapes etc) then there is not point in having ever faster and heavier lenses. Samyang have a good example here - 35mm 1.4 for people who want environmental portraits and 35mm 2.8 for people who just want a 35mm thats not too heavy (under 100 grams).
Some lenses can be made fast and light/small.
Eg, the Laowa 15mm f/2 is 500g, do you really want to go to f/1.4 and carry a 1.2kg 15mm lens around?
The fantastic FE 85mm 1.8 comes in at 371g, which gets up to 820g for the 1.4 GM, or 1.1kg for the Sigma 85mm Art.
The Canon f/2 zoom is about 1.4kg vs the Sony 24-70 2.8 which is 890g. Though I am sure the Canon is a bit overweight for its class (like the Sigma Art) since its a 28-70 and not a 24-70 which can have a significant weight saving.
But that is what youre facing - pointlessly heavy lenses, which can also be made on Sony without issue.
And the current lenses we do have, its not like they are lacking, they are excellent.
There is no advantage to this, it just makes the camera bigger.
Nichely fast lenses can already be made on Sony, and were already made on dSLR mounts. But its a niche.