400mm f/8 mirror - Printable Version +- Opticallimits (https://forum.opticallimits.com) +-- Forum: Forums (https://forum.opticallimits.com/forumdisplay.php?fid=4) +--- Forum: Just Talk (https://forum.opticallimits.com/forumdisplay.php?fid=17) +--- Thread: 400mm f/8 mirror (/showthread.php?tid=3388) |
400mm f/8 mirror - Klaus - 02-10-2011 so yes, it is a kenko lens: [url="http://dc.watch.impress.co.jp/img/dcw/docs/426/162/html/004.jpg.html"]http://dc.watch.impress.co.jp/img/dcw/docs/426/162/html/004.jpg.html[/url] 400mm f/8 mirror - netrex - 02-10-2011 Do you know any price on this lens? Is it new? 400mm f/8 mirror - Klaus - 02-10-2011 [quote name='Alexander ' timestamp='1297336871' post='6024'] Do you know any price on this lens? Is it new? [/quote] It is brand new. They claim it to be substantially smaller than conventional mirrors. Price: 9800yen. 400mm f/8 mirror - netrex - 02-10-2011 Ok. I can't see properly how big the mount is on that picture, but the price was certainly low, but it is a mirror of course <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt='' /> It will be interesting to see how it performs. 400mm f/8 mirror - popo - 02-10-2011 Just what the world needs. Another manual focus T-mount mirror lens. I'm guessing it's smaller simply as it is shorter focal length than the average of typically 500mm. 400mm f/8 mirror - genotypewriter - 02-11-2011 [quote name='popo' timestamp='1297343573' post='6033'] Just what the world needs. Another manual focus T-mount mirror lens. I'm guessing it's smaller simply as it is shorter focal length than the average of typically 500mm. [/quote] Hopefully the mirror is of a good quality... there aren't many mirrors with good mirrors sadly! Also the 400 instead of a 500 or 600 or 800 makes it a bit more handholdable (around a 1/3 of a stop). GTW 400mm f/8 mirror - netrex - 02-11-2011 [quote name='genotypewriter' timestamp='1297382851' post='6048'] Hopefully the mirror is of a good quality... there aren't many mirrors with good mirrors sadly! Also the 400 instead of a 500 or 600 or 800 makes it a bit more handholdable (around a 1/3 of a stop). GTW [/quote] I'm looking at the Samyang 500mm. It looks interesting, a good focal length, and I'm wondering how the quality is. I have the 85mm, and I'm quite pleased with it, specially considering the price. The also have an 800mm, and I wonder how that is as well. 400mm f/8 mirror - genotypewriter - 02-13-2011 [quote name='Alexander ' timestamp='1297411412' post='6056'] I'm looking at the Samyang 500mm. It looks interesting, a good focal length, and I'm wondering how the quality is. I have the 85mm, and I'm quite pleased with it, specially considering the price. The also have an 800mm, and I wonder how that is as well. [/quote] Keep away from the Samyang mirrors... most people hate mirror lenses because they use the cheapest stuff out there and compare them to refractors. Just go to a camera store and try out a Sony AF 500 for example... you'll see what I mean <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='' /> GTW |