Originally posted by tcarnell I decided to start buying some old Pentax manual lenses from eBay - its brilliant! They are loads of old prime lenses (24mm, 28, 50mm, 100mm) and loads of auto-focus zooms (100-300mm) etc. My Pentax-A 50mm F1.4 is just astonishing and although its not 'perfect' for lots of conditions, the results are always so great that its my most used lens.
Welcome to the Fast Fifty Gang! Those f/1.4s will just capture images that are impossible for other lenses. Abundant cheap primes include especially 28-35-50-55-100-135-200mm. Other focal lengths are a bit rarer, and some (like 85mm 'portraits' and 90-100-105mm macros) stay non-cheap usually -- although one can get lucky. (I'll resist bragging here.)
Quote: IMHO Buying budget 'one-size-fits-all' super zooms to save money is a false economy, I would recommend buying some old lenses, having fun with them and see what type of photography you end up doing, then when you are really sure, you can spend $800-1200 on exactly the lens you know you will use....
One exception: The DA18-250 and its Tamron twin really *are* great superzooms. Not as one-size-fits-all solutions, but as reliable flexible tools in dynamic situations where the unknown is likely. The DA18-250 is my 'drivearound' lens, perfect for car travel and wandering around strange places for the first time. I didn't buy it as a money-saver, but as insurance against missing shots whilst changing lenses. The IQ of a missed shot is zero.
I've mentioned that my minimal kit contains the Tamron 10-24 for tight spaces, the DA10-17 for REALLY tight or odd spaces, the FA50/1.4 for dimness or action, and the DA18-250 for almost everything else. I supplement those with the F35-70 for its agility and sharpness in its narrow range, and with various peerless old MF primes: fast f/2s in 24-28-35-58-85mm, medium f/2.8s in 16-50-100-135mm, and slow f/4+ glass in 35-40-50-100-135mm. Most of those were pretty damn cheap.
And this leads to an under-appreciated species of lens: old slow glass. The tiny Enna Sandmar 35/4.5 and Tele-Sandmar 100/4.5; Meyer Primagon 35/4.5 and pancake Heliogon 40/4.5; Isco Westar 100/4.5; Jupiter-11 135/4; etc. These were not unreasonably slow lenses on FF. These are all sharp and have a different character than newer glass. Some of those are always with me.
Yeah, the cult of speed isn't everything. For great bargains, look for slow old German and Russian lenses.