Christian Deichert , Jun 24, 2003; 03:43 p.m.
I use my MC Rokkor-X PG 58mm f/1.2 all the time. It's a great lens. It works well for portraits. It's a little soft at f/1.2 but otherwise is capable of taking very sharp photos. Prices can vary anywhere from $50 (what I paid) to $300 (what a used camera store would charge). Pitfalls? You may want to focus on the later models due to the imroved lens coatings (look for the rubber focusing ring). Then again, if you're going to use a yellow filter a lot, you may want to find an older model (with a milled metal focusing ring) because the slight radioactive decay of the rare earth elements in the glass tends to yellow the glass. I wouldn't bother with a UV filter -- if you want to protect the lens, just use a lens cap and take care of your glass. Sample photos below, one soft, one not.
Girl across a table in a bar in Germany. 58mm @ f/1.2, 1/60th, Ilford Delta @ 3200
Colorado River from Dead Horse Point, Utah. 58mm @ f/8, 1/15th or so, Kodak E100VS @ 100, Tiffen 812