Quote Originally Posted by bburns223


the 135 f/2 is meant for a fullframe body, on a 1.6 crop an 85 f/1.8 is a 136mm lens.


I have used this lens but I didn't buy it because I wanted the 85 f/1.2 which will be coming soon.


Brendan, what does 'meant for a full frame body' mean? Your EF 300mm f/4L IS was designed prior to the existence of dSLRs and crop factors. Does that mean it's meant for full frame, too?


I could as easily say, the 85mm f/1.2L is meant for full frame bodies. On a crop body, you've only got the DoF of an f/1.9 equivalent anyway, so why not get the 85mm f/1.8, and put the balance towards a 5D2?? [6]


If the 135mm focal length (216mm FF) works for the subject and available space, the 135mm f/2L is a great lens on a 1.6x crop body. Have no doubt - there are many people out there using that lens to capture indoor action and portraits on crop bodies.