I just received a Pentax T132 achromatic (two-element) close-up lens. B&H had a used one for $59.00 so I thought I'd go for it. It appears to be in perfect condition. It's a +0.76 diopter lens, made for the 67 system but I'm hoping it works reasonably well on the FA-80-200/2.8 (I know people who've had excellent results with the Nikon and Canon 2-element diopters on this lens). It's a 67mm thread, but the DSLR crop factor lets it work without vignetting on the 77mm filter thread with a step-down adapter.
I'll do some tests in a couple of days to see what the resulting image quality is like. It'll be interesting to compare with the Sigma 180/3.5 macro. It'll also be interesting to see how it works *on* the Sigma 180 macro! Should get pretty good magnification with that combo. (On the Pentax 80-200 at 200mm it seems to get better than half-size magnification but less than life-size. I'm guessing approximately 1:1.5 ratio - good enough for a lot of field work. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
