Summary: Its sharp and the built quality is solid. I often take this guy with me on mountain adventures to add a twist to otherwise normal mountain landscapes. Its made of metal and all of the knobs have held up to some tough treatment. The 45mm focal length is great for what I want. Some may want wider...
Great focal length, good build, a optics a little soft
Tim Dodd, Amazon
26 January 2014
Summary: As others have stated, it's hard to focus to infinity when not tilting at all... it is odd, you'd think they would've made it so it could focus beyond infinity, like most lenses, but it stops just short of infinity. Lens is a little disappointedly sharp at 2.8 and not much cleaner till 5.6 or so... but honestly, it's a tilt shift. It's mostly for fun for me and I don't expect it to be as sharp as an 85mm 1.2 or anything. I will say the focal length is very usable.
Summary: It is a nice, sharp lens but know this: there's a steep learning curve. Not something you can pick up and shoot with and get any consistently good results. It's manual focus. I tried manually focusing it through the viewfinder of a full-frame camera, using the stock focusing screen, and NONE of the shots came out in focus. Don't get this if your camera doesn't allow you to change to a better focusing screen unless you're going to use Liveview on the LCD.
Summary: The possibility's are enormous if you know how to use the lens, it is not so very easy to learn. I like the 45 mm on a FF very much, just in the middle of my two favourite's , the 35 mm and the 50/55 mm. It is easy to create miniature with this lens. Portraits also nice, but you will not use that very often. Canon says that it is not possible to use extenders, that is not true. I do not know why they say that.
Pros: Offcourse all the nice things you can do with a tilt/shift lens. 45 mm is nice on a FF camera. Very good build.
Cons: I do not like the bokeh, the only con I can think off.
Summary: This lens is a real gem! For me it is the most versatile TS lens on the market! I mainly use it for creative portraits of bridal couples! The potential of this lens to create stunning images is unmatched! Especially, if locations are not special this lens greatly helps to create extraordinary results. For instance, just shoot a couple or a person against a blue/cloudy sky and make use of the tilt effects of this lens!
Pros: amazing sharpness, unmatched sharpness/blur effects, fosters creative potential of the photographer
Excerpt: I've owned a 45mm TS-E for 7 years and find it fun and an enjoyable experience to use. However, it needs improvement in several areas. It needs a circular aperture, rotatable tilting, and Canon's SSC lens coating. With these improvements the lens will be world-class. Focus across the image plane is adequate but could be sharper. At large apertures there is significant color fringing. An updated version of this lens would be welcome.