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p.3 #8 · p.3 #8 · Sony Full Frame attack: (SR5) Three E-mount FF to come within 5 months! | |
artur5 wrote:
Anyway, the combo FF-NEX + Sonnar FE 35/2.8 has only 54.5 mm from the focal plane to the lens front, while the combo M camera + Biogon ZM 35/2.8 is 58.7mm.
douglasf13 wrote:
Yep. It seems f2.8 designs will be ok for 35mm. It'll be interesting to see how large the rumored 55/1.8 is.
Nanh wrote:
Since it's so small, it's entirely possible that the f2.8 Sonnar has a more symmetric design. Old symmetric lenses are rarely if ever faster than 2.8. The faster leica wides all have a more retrofocal design and are bigger. The throat size is only a limitation for fast and retrofocal designs(requiring large rear elements), i.e. it might not be possible to design a fullframe 50 1.2 for the E-mount. Symmetric wide lenses have a high incident angle not due to the small throat size, but by definition. Whether Sony can make small wide lenses has everything to do with whether the sensor can cope with hight incident angles and not much to do with the mount.
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douglasf13 wrote:
Yeah, I'm assuming that Sony hasn't made any giant steps towards improving the sensor coping with high incident angles, and a 35/2.8 Sonnar doesn't change my view on that, because, as I mentioned, it is probably in the same design vein as the 24/1.8 and RX1 Sonnar.
I'm not too sure about that, the E24Z is a 7/8(group/elements) design while the FE35 is a 5/7
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