50 f/1.4 USM vs 40 STM vs Zeiss 55 f/1.8

Started Dec 18, 2013 | Discussions thread
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joger Veteran Member • Posts: 4,504
50 f/1.4 USM vs 40 STM vs Zeiss 55 f/1.8

not bad for a "budget lens" - really not bad - especially compare to the Canon offerings

wide open




(data taken from SLRgear)

As expected - at f/5.6 all lenses perform more or less equally - but the wide open performance of the new Zeiss 55 f/1.8 is phenomenal compare to the Canon offerings - if the rest of the product line from Sony is on a similar level I am even more tempted by the A7R offering!

Most impressive is the comparison to the STM 40 - which is truly a unique offering in size and weight but the total weight (even with a 6D) is roughly double the weight of the A7R plus the 55 f/1.8

All results to be take with a huge grain of salt of course!!

BUT looking at the f/1.8 performance I am really looking forward to the next lenses from Sony and from Canon - the bar is set a bit higher now - good for us customers

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 joger's gear list:joger's gear list
Sony Alpha a7R III Leica APO-Telyt-M 135mm f/3.4 ASPH Zeiss Loxia 21mm F2.8 Sony FE 85mm F1.4 GM Sony FE 50mm F1.4 ZA +8 more
Canon EF 40mm f/2.8 STM Canon EOS 5D Mark II Canon EOS 6D Sony Alpha a7R Sony FE 55mm F1.8
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