It is very sharp , it is very fast , it is very well built and it is one of the least expensive L lenses Canon makes. It is the highly regarded Canon EF 135mm f/2L USM Lens. If 135mm is the focal length you need, you will not be disappointed by the 135 L.

The mechanical quality of the lens is truly excellent thanks to quality materials, tight build tolerances and a smooth and well damped rubberized focus ring. The lens has a "true" IF design so it does not change its physical length and the front element does not rotate during focus operations.

The title says it all on this. The sharpness is just right, the color rendition is amazing, and the contrast is incredible. Autofocus is also very fast, which is great because the combination of that and the bright aperture make it a great choice for indoor sports.

I wish every lens was this good!! I just love the lightning fast & accurate focus of this lens. It focuses within a blink of an eye, instantly. Focus are dead on with my Fullframe or APS system. It's an ideal portrait lens. Bokeh is buttery smooth, best you can get from a 135mm.

f/2; fast-accurate-silent focus; (relatively) small & light; super sharp!

IS version could be nice

I am an amateur photographer. I love this lens. it makes shooting action shots in my living room look professional with the blurred background.I had a canon T5I Rebel

Fast, light and sharp as heck. I love using this lens to cover the beam routines in gymnastics. the f2 vs f2.8 lets you drop a whole ISO stop cleaner, makes a HUGE difference in the quality of your pictures. The bokeh on a FF lens is so wonderful, it should be illegal.

Sharp sharp sharp; incredible bokeh; great value

135mm can be a little long if you don't have a varied collection

The Canon 135 mm F2 L lens is every bit as good as all the other reviews claim. I'm always a bit skeptical about reviews that gush over an item, but in this case, the praise is warranted. It is a little surprising that a lens this good receives so little attention?

One of Canon's best lenses for portrait work. 135mm can be too long for some, but this lens is great in the hands of someone who knows what they are doing. Definitely not the lens I'd recommend for a beginner! on a crop body this lens is effectively a 216mm f/2 lens and that rocks.

fast aperture; snappy focusing; great color & contrast

doesn't do the dishes

This is one of the best portrait lenses I have ever used. I t is a staple in my bag for every shoot. If you shoot sports inside then this is a must have as it is fast and razor sharp wide open. Add to that the price and it is a killer deal!

Consistent Output; Durable; Quick Focus; Sharp Focus; Stunning bokeh

NONE

Professionals, low light sports

Fast Focus; Good value; Quality Construction; Good Quality

Heavy; Bulky