I've recently got my 5D Mark III, and got it with the kit lens, and in a months time I really want to pick up a good 50mm prime (I've come from film, and a good 50mm prime was the lens that stuck to my camera body the most), so I've narrowed it down to these three choices. I'm liking the 1.2L, as I was really quite impressed with the build quality of the 24-105 (I thought I'd hate it coming from all metal film lenses), and the fact that it has a bit of a larger aperture, and let's admit, it looks really nice too.
The other two options are both Zeiss, and I'm considering these due to their build quality (closer to what I was used to) and the fact they're manual focus only is a non issue for me, I'm quite used to it from when I shot film, and the 5D III's focusing screen is super bright, and very easy to MF in (even with the f/4 lens)
So basically, I'm just wondering what people who've maybe tried any of these lenses have thought and which you would reccomend I'm sure they're all fine lenses and I'll be just as happy with any, but would love to hear some opinions.
Thanks in advance all!
I would recommend getting a brand new Nikon 50mm 1.2 and using a Nikon to Canon AF confirm adapter.http://www.adorama.com/NK5012.html
The Nikon 50mm 1.2 is the best 50mm lens ever made for image quality stopped down.
It's as sharp as the 50mm 1.4D is at f/2.8 at f/2.0. meaning it's "a stop sharper".
Here's a comparison between the 1.4D at f/2.8 (simulating the Nikon 50mm f/1.2 as it's not been tested by that website) and the Zeiss 50mm f/2.0 Makro which is the sharpest 50mm lens you've posted:http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=637&Camera=614&Sample=0&FLI=0&API=3&LensComp=727&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=0
Simply put the Nikon 50mm 1.2 is equivalent to the following lenses at f/2.0:
Zeiss 50mm f/2.0: Would have to be at f/2.8 to be equally sharp
Zeiss 50mm f/1.4: Would have to be at f/4.0 to be equally sharp
Canon 50mm 1.2: Would have to be at f/4.0 to be equally sharp
It has substantially better image quality than any other 50mm lens out there stopped down.
With that said the Nikon 50mm 1.2 is average at f/1.2 and average at f/1.4 (there are better 1.2 and 1.4 lenses but it's not bad), it's just the best 50mm lens AT or BELOW 50mm f/2.0 and it's nice to have the abbility to go to f/1.2 even if it's second or third best at that.
On top of that the Nikon 50mm f/1.2 is built like a tank, it has better build quality than any of the lenses you listed by a huge margin, yes even the Zeiss lenses which most people can't fanthom being improved upon. It's build quality can be described as how a tank would be built if it were made by a swiss watch maker.
Anyways hope that helps.