I do not justify the cost of Zeiss 15mm. Last year I bought Canon TS-E 17mm L and I quite enjoyed it. This year I found a cheap used EF14mm f/2.8L II in mint condition.
I own currently 35/2.0, 50/2.0 and 100/2.0. Just sold my 85/1.4 and 50/1.4. I'm looking for a 21mm to complete 'my set' and I don't carry all at once.
I've rented the 15mm...
Just curious, but how are you choosing (or what's the thinking I guess) behind the 21mm over the 15mm?
Thanks for your thoughts...
I can't really absorb the cost difference between the 15mm and the 21mm and that is why I would look for the 21mm. Additionally, the 15mm requires a 95mm should you decide to use one however CPL's and most filters don't work well on UWA lenses. I have a collection of 82mm filters that would work for the 21mm.
This ultra wide combination (EF14mm, 17TS-E, Zeiss 21mm) is enough for me (I also have the 16-35mm f/2.8L but there has been some time since I used it!)