Originally posted by Pentaxor the only limit factor here is the time consumed in switching lenses. for some people, especially those with only one camera, using a zoom is very handy especially in those situations where you need to take a snapshot every second and not missing out on the good stuff.
for those who have the time in the world or fast-switching people, the primes would do just fine. and btw, why do you think some photographers carry and use 2-3 cameras all at once?
I think your comments make a lot of sense, however I'll throw something else in the mix...(not directed at you, directed at the overall thread).
I have one zoom (I have the DA 10-17mm, but I use it as a double f/l prime) and I almost never use it. Like wheatfield...I don't like the size, weight, or the limits of f/2.8 (I shoot almost exclusively between f/2 - f/4).
For me...using my feet to zoom is 100% acceptable (edit: I don't shoot landscapes, but I could see why this would matter), and I don't particularly care about the f/l, as long as it falls between 30mm and 75mm.
My primes have been hand picked because they provide something specific to the photo, be it bokeh, 3D, centre sharpness, etc. Because of this I decide in advance what I want the images to look like and put on the appropriate lens...f/l rarely matters to me. I have multiple f/l's as well to cover that base if needed, but it rarely comes into play.
Also...I frequently shoot with two bodies at the same time. This isn't because I require separate f/l's...it's because I want two distinct types of images, as well as a second camera for back up.
For example...I recently shot a wedding using only 3 lenses. The entire ceremony was shot with FA50, the portraits afterwards by FA77, and a couple of large group shots by DA10-17 (at 17mm). I changed one camera from it's prime to the FE, then back again as my only lens changes in the space of 6 hours of shooting.
Just some food for thought...
c[_]