Canon TS-E 17mm f/4L

Nice. Works good. Does what it is supposed to do. Sharp. Excellent Canon build quality.

I have been using this lens for almost a decade now and it always "enhanced" every situation I had to capture, obviously architecture and landscape. But now mounted on a Sony A7RII it's just ridiculous the improvement in image quality over my last Canon body (5D MKIII...I know the 5DS is way better...but sorry I left the Canon boat long time ago but couldn't leave my 17 TS-E and also my 200 f1.8 but that's another story.. ; ) For the ones that still hesitate, rent it first, and you'll have no choice than to buy it after.. ; ) And in 2018 you have now the choice for filter holder without vignetting... take the 145mm, the 100mm system won't let you get the full potential of the movements, happy shooting... ; )

Hands down the best lens for the job. I used to shoot buildings using a Linhof 4x5 with a bag bellows and a 65mm. This lens makes life much easier. It also has great resale value. I have had this lens before and would sell it if not used in a year. Then I buy another, like this one. You don't lose much cash and way easier than renting.

This lens combined with the 24mm tilt-shift is a must for interior architecture photography. Great for outdoors too but, interiors look like you could walk right into the picture. These are the most versatilelenses I own for this type of photography.

This is my second T/S lens. Other was damaged. I use lens regularly for arch shots. High quality, very sharp.