DA*50-135mm for sure. You need to be quick at weddings and can miss shots if your too busy switching up lenses on the fly. Chances are the 50-135 will not leave your camera once you put it on. I only used my DA*16-50 for group shots when I didn't have the working distance required for the 50-135. Only time I used primes (43 and 77) were at the reception when I needed the added light capturing ability.
the DA*50-135 still is one lens that rarely if ever leaves my Pentax bag. My Pentax kit for the past year has been K3, DA*50-135, FA 31, FA 43, FA77, Fisheye. Going to add the 100mm Macro sooner or later...
---------- Post added 01-29-2015 at 03:12 PM ----------
Originally posted by howieb101 If you dont mind the af noise choose the FA77. The af speed of the DA* may be too dlow for weddings.
I personally disagree as I've never had a problem with the AF speed of that lens in any scenario, including weddings, except for auto-racing.
I do agree that it is slower than average though.