There was a Makinon 300mm reflex, f5.6 as I recall. I almost bought one second hand around 1990 and got as far as taking some test shots in the shop which were impressive. Alas, another purchase took precedence and I let it pass. It'd be quite old now but if you found a clean example (refexes are a bit susceptible to fungus in my experience) it would be worth a look. It's compactness is amazing, it is hardly bigger than a 50mm lens, probably smaller than a Canon 50mm lens.
Here's a link to some comments about it: http://www.pentaxforums.com/userreviews/makinon-300mm-f5-6-mirror-lens.html Apparently there's a fair bit a of quality variation from sample to sample, but you shouldn't pay much for one so it could be worth the risk. FWIW, I was at first disappointed with my Tamron SP500 reflex that I got in 1988, but it sharpened considerably after I put a good UV filter up front, the only lens I've had that result from (every other lens takes a tiny hit in sharpness when you use a UV filter). regards, Anthony On 27 November 2012 13:25, Miserere <miser...@gmail.com> wrote: > Sorry, I only have a 400mm for sale. It's a Sigma f/5.6, and pretty > good for a mirror lens. > > The only 300mm I'm aware of is indeed the one you mention for m4/3. > > Cheers, > > —M. > -- 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.