The mount on the russian lens is sort of fixed T-2 adapter, if your are talking about a MTO (The Rubinar has a fixed mount and can be bought in K-mount, but has a lesser build quality). So you can change the mount with some precision screwdrivers. Be aware the a 600 and a 1000mm are completely different lenses and can't be compared with each other. Making nice pictures with a 600mm is difficult. Making pictures with a 1000mm depends on the weatherconditions, when its hot you get trouble with turbulence in the air. For a 600mm you need a sturdy tripod. For a 1000mm you need an enormously heavy tripod(and therefor expensive), thats why Pentax delivers the 1000mm takumar complete with a big and very expensive tripod. Handholding a 1000mm is only for transportation not for picturetaking. Also you can't use camera's with prismahouses like the MZ-5n on a lot of these lenses because of the size if the lens. An MTO is more forgiving than a Rubinar which is a lot flatter. I couldn't fit a MZ5n to a Rubinar 1000 but could fit it to a MTO 1000mm The tripodcollar on the rubinar 1000mm seems a nice feature, compared to the fixed onces on the MTO, but there is to much play in it to be any good as a tripodmount. Another good option is a 5.6/500 rubinar, that one has a nice tripodcollar. And can be used with a monopod. Don't glue the adaptor to one of these lenses for mounting speed. Mounting them on your camera will still be a slow and heavy job. You mount the camera on the lens instead of the lens to the camera. If this is your first extreme telelens than buy something in the 500/600 region and use a 2X convertor if you need the reach of the 1000. I have the 8/500 and 10/1000 MTO and the 5.6/500 rubinar. They all have there own purposes. One other thing you need a camera with a good groundglass, because your finder will be dark and there is no real depth of field with these focalpoints.
René van Ginkel -----Oorspronkelijk bericht----- Van: Levente -Levi- Littvay [mailto:[EMAIL PROTECTED] Verzonden: zondag 23 maart 2003 7:09 Aan: [EMAIL PROTECTED] Onderwerp: mount q + 1000mm/f10 vs 600mm/f8 Which mirror lens would you get? The Russian (Zenitar, MC or whatever...) 1000mm/f10 in M42 mount or the Sigma 600mm/f8 I head that this 600mm Sigma is really more like an f11. If that is true I am better off with the f10 one. But it is possible that the f10 is more like f16. Also. You think I could just simply superglue a K mount converter on this? I really want to put one on permanently, not having to deal with taking the converter out all the time... L
