Excellent seller, I recommend to all

"This macro lens give amazing optical performance. It is in my tests flat-field, just as sharp in the corners as in the centre, even at f:2.8, and consistently sharp from f:2.8 through f:9.

Lightweight, well-balanced, sharp, great for portraits and macro ie flowers, etc. I love single focal length lenses. While I have the kit zoom lens. My favorite lenses are the 20mm and the reviewed 45mm.

wow!

yes

yes

I love shooting close-up - not quite macro (1:1) in most cases, but pretty close (1:4 to 1:2). I am amazed at how well the autofocus works even it these close ranges - it always focuses on something, and very often the right thing, but once you get to know the lens its relatively easy to coax it...

Great image quality; excellent autofocus

small max aperture; lens hood doesn't reverse for storage

Very good, if not quite outstanding, optics; Extremely compact and lightweight; True 1:1 macro; Reasonably effective image stabilization (but really need to use mode 1);

'Focus-by-wire' manual focus gives no tactile feedback; No distance or macro ratio scale; Rectangular lens hood doesn't reverse for storage; Slow maximum aperture not ideal for portrait use; Image stabilization ineffective at macro distances; Expensive;