I've been buying a few old bargin lenses on the 'Bay lately... Just building up a cheap SLR kit for the kids to use (and me of course!) I received a Pentax-A 28-80mm f3.5-f4.5 zoom lens in the mail today and was immediately horrified at the amount of flare that this lens suffers from. I could see a problem through the viewfinder and a test film confirmed my fears. I must admit that I have been rather spoilt lately... I've used nothing but Voigtlander rangefinders and lenses for the past three years, so the sight of purple streaks and loss of contrast is foreign to me!!! Is such lens flare common in mid '80s zooms. I did use such lenses back in the '80s so I expected a little more from this lens and I'm not sure whether its a design 'issue' or whether the lens is faulty or just past its sell-by date. The lens is not mint condition although the elements look OK with no fungus or dust. There is a 'silver spot' on the edge of one of the elements inside the lens that may be causing the problem. I'm not sure what the spot is... I looks like a spot of solder about 1mm round... Could be element separation??? Maybe I'm just being fussy, but I don't think this lens is good enough for the kids to use let alone me.