On Dec 24, 2013, at 9:46 PM, Igor Roshchin wrote: > > Stan, > A mirror is an optical element, isn't it? > And the quality of mirrors can range widely. > > Igor > OK, sorry, When I think optics I think lenses. The mirror in the 90° add-on I had was not very good. IIRC. You would not be likely to get a sharp image. I think 135mm was about the shortest lens you could use without heavy vignetting.
stan > > > Tue Dec 24 21:38:04 EST 2013 > Stan Halpin wrote: > > > I had one back in the 80's. > No optics, just a mirror. > I found it quite disorienting to try to use. Someone used to a LF camera > or who has other practice working with mirrored images (dentists maybe?) > might find it interesting. > But for the price, it can be a fun toy to play with. > > stan > > On Dec 24, 2013, at 8:31 PM, Igor Roshchin wrote: > >> >> >> I saw this in some catalog many (10-15?) years ago, and then never >> thought/saw it again. >> I just noticed it on Adorama website: >> http://www.adorama.com/SearchSite/Default.aspx?searchinfo=LNMS5* >> >> Has anybody used it? Any comments? >> >> While one obvious problem is that it is very prone to dust, and I am >> not >> sure about the quality of optics, it might be a good little tool for >> some. >> >> Igor > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
