I love the Pentax system,especially for its small primes,and some very useful features in its for the quality of it very small cameras. K5s quite operation is another bonus.This is a thread for things unique in the Pentax system, this time focal-lenght/aperturecominations not available in other mounts.which means that DA limited 40mm 2.8 does for instance not qualify even if the smallest 40mm bar the new XS.If some focal lenght/aperture combinations is available,but only without stabilizing please also write.

henning kraggerudwrote:I love the Pentax system,especially for its small primes,and some very useful features in its for the quality of it very small cameras. K5s quite operation is another bonus.This is a thread for things unique in the Pentax system, this time focal-lenght/aperturecominations not available in other mounts.FA 77mm. 1.8 DA 70mm 2.4 FA43mm 1.9(31mm very near to 30mm so not so interesting from that point of view,drawing fantastic though)which means that DA limited 40mm 2.8 does for instance not qualify even if the smallest 40mm bar the new XS.If some focal lenght/aperture combinations is available,but only without stabilizing please also write.fisheye 10-17mm not available in Sony Aand quite a few other.(not sure about DA35mm macro tokina clone if it is in sony or not) for handheld video this can give unique possibilitis for Pentax.

K400-600mm f8-f12 mirror zoom. Only Pentax has made such a lens. I wonder why?

steephillwrote:K400-600mm f8-f12 mirror zoom. Only Pentax has made such a lens. I wonder why? .Thanks for info, I had no idea this was ever made or possible. Anybody who has this lens here,or sample photoes?

The F*FA* 250-600mm/5.6 were unique lenses and excellent zoom lenses, Pentax should bring back that lens! -- Leopold Pentax forever http://smarcoux.zenfolio.com/ http://www.limagier-photo.com/ http://www.firstlight.com/galleries.php http://steevemarcoux2.wordpress.com/

I'd say these both qualify: The 2000mm F13.5 reflex. The A* 1200mm F8.

I believe Canon had a 1200mm F5.6 and Nikon had some 2000mm mirror lenses also -- Mike from Canada"I am not a great photographer! God is a great creator! All I do is capture His creation with the tools He has provided me."'I like to think so far outside the box that it would require a telephoto lens just to see the box!' ~ 'My Quote :)'http://www.airliners.net/search/photo.search?sort_order=views%20DESC&first_this_page=0&page_limit=180&&emailsearch=mighty_mike88%40hotmail.com&thumbnails=