05-22-2014, 05:05 PM
(This post was last modified: 05-22-2014, 05:08 PM by Brightcolours.)
Nice looking lens, although I do not totally get the choice for white for an FE lens.
A bit disappointed at the corner performance wide open, though... Especially seeing to which troubles they have gone in the optical design: 21 elements in 15 groups, of which 2 "advanced" aspheric elements, 1 aspheric element, 1 super-ED element, 2 ED elements.
Compare that to the Canon EF 70-200mm f4 L IS USM from 2006 already: 20 elements in 15 groups, of which 1 fluorite element and 2 UD elements, which has better corner performance wide open.
Also the size and weight are a bit of a downer, especially for a mirrorless camera lens. Longer than the Canon even if you take the mirror box into account, wider than the Canon (80mm vs 76mm), heavier than the Canon (840 grams vs 760 grams), bigger filter size too (72mm vs 67mm). Luckily the A7X body will weigh less than a FF Canon DSLR.
Also a let down for me is the max. magnification of 0.13x at 1.5m vs 0.21x at 1.2m for the Canons. That probably means a widening of the view towards MFD. So for sure not a lens for me.
So, nice lens, but more expensive.
A bit disappointed at the corner performance wide open, though... Especially seeing to which troubles they have gone in the optical design: 21 elements in 15 groups, of which 2 "advanced" aspheric elements, 1 aspheric element, 1 super-ED element, 2 ED elements.
Compare that to the Canon EF 70-200mm f4 L IS USM from 2006 already: 20 elements in 15 groups, of which 1 fluorite element and 2 UD elements, which has better corner performance wide open.
Also the size and weight are a bit of a downer, especially for a mirrorless camera lens. Longer than the Canon even if you take the mirror box into account, wider than the Canon (80mm vs 76mm), heavier than the Canon (840 grams vs 760 grams), bigger filter size too (72mm vs 67mm). Luckily the A7X body will weigh less than a FF Canon DSLR.
Also a let down for me is the max. magnification of 0.13x at 1.5m vs 0.21x at 1.2m for the Canons. That probably means a widening of the view towards MFD. So for sure not a lens for me.
So, nice lens, but more expensive.