Originally posted by philbaum As to high costs, today's engineering and manufacturing costs are much higher than they were years ago. The Nikon FX 85 f1.4 G currently lists for $1600. rounding off. But its current basic configuration was first issued back in 1995. The comparable FE lens 85 f1.4 G costs $1800 rounding off. I don't think this is a big difference in costs considering that the FE lens was engineered in the last year - i would guess. BTW Tamron apparently is manufacturing a lot of these lenses judging by a statement on their corporate website. I don't like today's lens prices either, so my recent purchase of a lens for my Sony A7rII was a Canon EF 85 f1.8 USM lens (first engineered in 1992) that has superlative sharpness in the F4, F5.6 area on up and gorgeous bokeh - all for the price of $369. With Sigma's MC-11 adapter, it has fast and reliable AFs and AFc.
As a consumer I don't care the justification of why it is more expensive. I want to get the most of my money because I don't have infinite suply of it. Natively on FE mount I don't benefit of tamron 28-75 f/2.8 or 70-200 f/2.8 screw drive version that I can get for 300€ and 550€ new respectively, 200€, 450€ user respectively.
Canon/Nikon/Pentax all have an offering of nice, innexpensives prime like for example 35, 50 and 85mm. This doesn't exist in FE mount.
As for the zooms, for example the 24-70 f/4, I don't think that 2.5EV of vigneting at 24mm wide open is great. The average T stop of the lens measured by DxO is 4.4 and go as high as 4.5 at 70mm. Nothing to rave about. The distorsion go as high as 3% barrel distortion at 24mm and 3% pincunchion at 70mm (not so great for portraiture !)
The comparable f/4 canon lens has average measured T stop of f/4 with the worst being 4.1 at 70mm. The vigneting is 1.8 EV, not good but almost 1Ev better. The distorsion is 2.4% at 24mm and 0.7% at 70mm.
The Sony, measured with a 36MP sensor vs the Canon on a 5D mark II manage to even have worse extreme border performance at 24mm.
The Sony FE lens is under corrected, under designed and hide it behind automatic corrections applied on the raw. In the same range of price, you can get a tamron 24-70 f/2.8 that perform the same sharpness wise at f/4, much better for distorsions and also support f/2.8.
The f/2.8 version of the 24-70 is extremely expensive (double price than the DFA24-70), same weight, 3cm longer... We don't have much review yet, but that not that impressive price wise.
The 70-200 f/4 of Sony is as big/heavy as the Canon equivalent. The Canon has less vigneting. Both are terrible for transmission (4.7 for sony, 4.6 for Canon). Canon bokeh is smoother while the Sony not bad.
How can we be impressed with that?
The bodies are quite impressive, that true. This is maybe the best echosystem for old manual lenses, by far. All granted. If you don't care of the price, this is still a good opportunity to save on weight and size, if you keep looking at short focal length and small appertures. But the FE line is still lacking and overpriced for what it offer.
The recent bodies with SR are as heavy as their DSLR counterpart. They are still smaller but that's about it. The lenses are as big overall and noticably bigger than the Pentax limited line, even the FA. If you buy native FE mount lenses the A7 serie doesn't deliver any compactness/weight advantage and is overall more expensive with less choice. If you buy the adapter, this doesn't help for size/weight and price...
This a success in term of marketing. But like many would complain that Pentax even with K1 is not good enough for pros (pro plans, AF performance, choice of lenses), Sony A7 serie is worse.
Last edited by Nicolas06; 09-25-2016 at 12:50 AM.