Steve Castle
Well-known member
You should really check out Zeiss. The Contax models can be attached to a Canon camera with a simple and cheap adapter from ebay. A good, used lens, costs between 100 € and 1400 €. There are some that go 2.8f, are cheap, but of such good quality you can shoot wide open and they will be sharp into all corners. You don't need the ones beyond 1000 to get amazing images. I just bought 2 for 100 € that have amazing quality.
Zeiss is just a brand-name at this point in regards to the SLR-market, the vast majority of the Zeiss lenses are made by Cosina in Japan. Granted, Cosinia is a great manufacterer. They are built to Zeiss specifications and licensed out to third-parties, such as Sony and recently Nokia for their camera-phones.
The reality is, modern dSLR lenses, with their nano-crystal coating and fancy modern 21st century technology and design do provide images equivalent, if not superior, then the older Zeiss designs, especially in areas like CA, for a lower price.
Here's an example (comparison of the highly regarded Distagon 18mm/3.5)
http://www.luminous-landscape.com/reviews/lenses/distagon-18mm.shtml
For a Canon system, if shooting manual, adapters aren't an issue, and you don't want to use any Canon lenses. Then there are still a ton of choices. You can even get an M/R-mount adapter to stick a Leica lens or even Hasselblad C/CF-mount on your Canon if price isn't an issue. Regardless, these days modern dSLR lenses are incredibly well-made and produce very high-quality images regardless of the brand.
Here are some Canon adapters (The EF-mount has a large mount diameter so are compatible with a lot of adapters):
http://www.alibaba.com/product-gs/204897999/Contax_Yashica_C_Y_to_Leica.html