Originally posted by jeffshaddix Hey guys,
I'm fixing to switch over from Canon to Pentax and purchase a K-7 (body only). I'd really like to get a fast, sharp, artistic, and quasi-affordable lens to go with it. I'm on a tight budget, but don't want to skimp on quality for more lenses.
The only lens I had for my Canon was the old Sigma 17-70, which I really liked *except* for the variable aperture (2.8-4.5) and slow focus. I'd like something a bit faster and with full-time manual focus.
Originally I was thinking the new Sigma 17-50 2.8 OS HSM would be perfect, but I need the camera and lens by August, and at this rate I doubt the lens will be out by then in Pentax mount.
I've always admired the Sigma 50mm 1.4 HSM: beautiful clarity, speed, and bokeh, but I don't know if shooting with just a 50mm prime for the next 6-12 months will be torture or a great learning experience. I expect it would be a bit of both.
Any tips?
What are you going to be using this lens for?
I ask because if you're on a tight budget, buying a manual focus 50 mm to start is one easy way to keep your cost down while still getting good value for your money. Then you could use this lens to tide you over until the Sigma zoom comes out.
I suggest this because it is harder to find primes that are at or wider than 30 mm (that 17-30 mm range provided by the Sigma zoom) that are both good at f/2.8 and also affordable. Although the Sigma 30 f/1.4 and Sigma 28 f/1.8 are alternatives that would cost a little less than what the Sigma 50 f/1.4 does.
However, if you feel you can get by with just the Sigma 50 f/1.4, and if you're planning to use it primarily for fairly tight people shots or candids, I think it's a good enough lens that you could get away with it if you worked around the limitations of only having one lens.
Are you getting paid for your work over this time? Because if the answer is no you can almost certainly get by with one lens.
I began with Pentax using my Pentax FA50 f/1.4 as my primary lens for awhile (probably about 5 to 6 months) while working at a newspaper and I still think I did pretty well considering and learned a lot. These days, though, I use wide angle lenses so much it's hard for me to imagine just having a 50 mm.