- Rikenon-P 50mm f/2
This is my gap-filler between the two Pentax zooms. It's small and light, even more than the 50/2 Pentax-A. I believe it to be sharper in focus than the Pentax (which I owned briefly), but the Rikenon shows poorer bokeh in shots thus far. It needs more examination and practice to learn its ups and downs. It takes 52mm filters rather than 49mm like most lenses of this type. It is a gap-filler in more ways than one, as I hope to replace it with a f/1.7 or 1.4 copy some day.
- Rikenon-P 28-100 f/4
Another of the P series from Ricoh,
- Rikenon XR 135 f/2.8
The third of my Ricoh trifecta, purchased at goodwill online ($11 plus shipping). Many companies have 135mm lenses ranging from f/2.5 to 3.5; when I saw this was available, I decided to split the difference. It's a nice lens but has no P setting(IRRELEVANT, see red note above), so it's all manual all the time. Images are very nice, both sharpness in focus and bokeh are excellent.
- auto-Chinon 28mm f/2.8
This lens has been in my garage for some time, attached to an old Chinon film camera that was supposed to be for astronomy. I pulled it out as soon as I began using Pentax dSLRs again; it works quite well and has a nice minimum focus for sligtly-distorted closeups.
- generic 2x teleconverter
The seller of my Rikenon 50mm threw in a 2x TC, which was a nice surprise; I had considered purchasing a 1.4x for future work, but the price is right on this so for now it'll do. I haven't tried it with the 28-100 or 135 yet, that should prove interesting!
Wish list - every photographer has one, whether it's admitted or not!
I bought the DA16-45 to satisfy my wide-angle tastes, so I do not expect a 10-xx or 12-xx zoom to sweep me away. It's possible that a small prime in the 14-16mm range could do so however, perhaps even a fisheye. On the other end, a long tele could get some use, and I like the compactness of catadioptric mirror designs; maybe some day I'll let a 500mm cheapie into the lineup, though I'd prefer a mythical 400mm version. Neither an extreme wide or telephoto prime would get much use though, so not a priority now that the 16-300 range is covered.