Whats the highest rated lens according to the Pentax Forum database ratings that you own? Does it live up to its rating in your opinion? Is it worth what you paid for it?
I was sorting through lenses looking to see what needs to be put up for adoption and making a spreadsheet of all the full frame lenses I have, their specs, cost, etc. and I added a column on PF Rating Score for each and was rather amazed.
The highest rated lens that I own is my F50/2.8 Macro lens at 9.70. Funny but most of the lenses that are rated higher are brand new, and ratings tend to be highest when a lens is first introduced, but the F50 has been around since 1988. Does it live up to its rating? Hmmm...I think so. It's sharp, has nearly no distortion, deals with light well with its recessed front element, and for what it is intended to do does it very well.
Is it worth what I paid for it? That's unfair on this lens because it came as a surprise in an auction. I was bidding on a K100D (wanted to see the CCD images myself) that I knew had a nice telephoto with it and another unnamed largish lens. Got the K100D and telephoto for what I consider a steal ($50) and this lens was the one attached to the camera when I opened the box! Completely unexpected and essentially zero cost to me.
Sharpness
10.0
Aberrations
9.8
Bokeh
9.7
Autofocus
9.7
Handling
9.8
Value
10.0