A flat field 300 is kind of rare. Given its 5.6 I'm surprised its not apochromatic as well. I would really love to acquire one of these as well as a pentax M 300/4 and compare. Either one would fit the bill for the relative limited use I would get out of the focal length. Especially with a good TC.
On Wed, Jan 14, 2015 at 8:51 AM, Darren Addy <pixelsmi...@gmail.com> wrote: > Thanks for the comments Steve & Brian. > > Regarding a tripod collar, I found this thread: > http://www.dpreview.com/forums/thread/2888491 > recommending "a Lens Collar for Canon EF 70-200mm/F4L from ebay. They > also come in black. I bought a couple of the black ones that I am > using for some other purpose. BTW, these are the same tripod collars > that can be used for the Pentax-FA*300/4.5." > > I'm a bit surprised to find a number of people using the 54B for > astrophotography (a torture test for lenses). This page recommends it > (along with a couple of Pentax lenses) for example: > http://www.gyes.eu/astro/camera_settings.htm > > > > On Tue, Jan 13, 2015 at 2:18 PM, Brian Walters <apathy...@lyons-ryan.org> > wrote: >> Quoting Darren Addy <pixelsmi...@gmail.com>: >> >>> I tripped across a manual focus lens last night that I was not >>> previously aware of: The Tamron SP 300mm f5.6 Flat Field (model 54B), >>> an Adaptall2 lens. The two big things it has going for it are >>> lightness and close focusing capabilities. >> >> >> >> I have one of those - as well as the 2x adapter. I haven't used it for some >> time, though - manual focussing of long lenses is a bit of a challenge these >> days. >> >> I used to take it to the Sydney Cricket Ground once a year where I'd use it, >> tripod mounted, for some action shots of the players. I may do that again >> this year. I only wish it had a tripod collar - it's not a heavy lens but I >> always felt it was a bit unbalanced without one so I cobbled together a >> rough support to move the tripod support a bit further from the camera. >> >> Hope you enjoy yours. >> >> >> -- >> Cheers >> >> Brian >> >> ++++++++++++++++++++++++++++++++++ >> Brian Walters >> Western Sydney Australia >> http://lyons-ryan.org/southernlight/ >> >> >> >> >> -- >> 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. > > > > -- > Life is too short to put up with bad bokeh. > > -- > 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. -- 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.
