DxOmark tested the 24-70mm Sigma lens for Sony and writes:
Over image quality is good and both sharpness and uniformity are good when stopped down a little but the Sigma has high levels of chromatic aberration, particularly at the shorter focal lengths. Given the performance and the inclusion of an ultrasonic type AF motor, it’s fairly priced at $899, but still somewhat overshadowed by the better corrected and more accessibly priced Tamron.
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Wrong Tamron. The 24-70ZA should be compared to the SP 24-70MM F/2.8 Di.
This 28-75 Tamron is an amazing lens to me. It shows how light and small a good 2.8 zoom can be. Make it sharper wide open and make it FE.
+1
This is my current setup – A7r, La-ea4 and Temron 28-75 f2.8 A-mount.
I’m sure if Sony to Tamron were able to re-engineer a lens like this to work with a native FE mount then people (like me) would be trowing money at them!
As it is the combo I have is great, but it’s a shame to be using a mirror again, and the lens is a little long…will have to get used to it!
Speaking of Zeiss and this is a random question….
Can anyone tell me how the 55mm 1.8 compares to the 50mm 1.4 Zeiss? I cannot find a direct comparison anywhere. Someone here with money to burn has got to have checked this out.
I wanted to know the same thing. I saw a comparison against some other lenses including the 4,000 otus and the 55mm 1.8 was second and the guy called it a baby otus. To me they are probably very close. The 55mm is lighter smaller and is just a little slower and is about 500.00 cheaper so If I had to choose I would get the 55mm which I plan on getting in the future after the 35mm 2.8.You may want to rent them both and compare them.
Thanks for the info. I have a feeling that they may be virtually identical. Honestly, I somewhat wrote the 55mm 1.8 off until I started reading the reviews. I just bought the 50mm and started back tracking to see how the 55 might compare.
I’m in a tight spot. I have the 135mm as well but the focus on e-mount is starting to make me look the other way. Kurt Munger also stated the 24mm Zeiss for e-mount had produced sharper results than the 24mm a-mount Zeiss. If all the best optical quality glass ends up on e-mount, and at a slightly cheaper price no doubt, I might as well switch. I don’t really care about absolute speed anyway.
Well this guy has both and will do a test: http://www.dyxum.com/dforum/comparison-50f14za-and-fe-55-f18_topic103837.html
THKPIC, I have not seen any Lens Review site like DXO and SLRgear with a 50mm f1.4 ZA SSM review. But, SLRgear has a 55mm f1.8 ZA FE. http://slrgear.com/reviews/showproduct.php/product/1656/cat/82
I have shot with the Pre-Production 50mm f1.4 ZA SSM , and the 55mm f1.8 ZA FE Production ver.
Both on the A7r … LAEA4
feel the 55mm f1.8 ZA FE is the best FE lens I have shot with so far.
One of the best 50-55mm I have shot with. and sharp wide open.
(Sony should make the 85mm f1.8 ZA FE … and a 14-24mm ZA FE next)
Personally I like the 50mm f1.4 ZA SSM better. mainly because I felt it went to the AF point FASTER. (SSM). also with the help of the PDAF on the LAEA4.
AND, imho at f2.8 the 50mm f1.4 ZA SSM was sharper (this is just a feeling thinking back, I did not do a side by side) and felt really confident f1.4 was very, very useable. That I ended up shooting f1.4 a LOT.
f2.8 became my safe shot. except you had to watch the DOF.
and Peaking at “LOW” is your friend. 🙂
Thanks for the info. I got out and shot the Zeiss 50mm today. As a longtime shooter of the Sony 50mm I feel it’s a big step up. I spent the afternoon examining the pics back to back and the 50mm is nothing short of impressive. I need to stop reading so many reviews and just get out and use my gear. At this point I’m far into a-mount territory, Time to buckle down now and get the 24mm Zeiss to finish off the primes.
Wait for the 24-70 2.0. IT WILL BE LEGENDARY
you’re wrong, it should be:
the 24-70 2.0. IT WILL BE wait for it…LEGENDARY!
+1 … I am waiting for the A-Mount 24-70 f2 ZA SSM … make it a WOW !
I do enjoy results from my CZ 24-70, for e.g. http://www.modelmayhem.com/portfolio/pic/31847253