NEX-7 Impressions

[jonoslack]

Not trying to be too negative as I also have a lens extender, the Leica OUFRO, for enabling M lenses to focus closer. Most M lenses, were designed to give optimal image quality within the designed focus range. A lens with a minimum focus distance of .7 meters will continue image degradation shorter than .7 meters with an extension. The only M lens I am aware of that is optimized for closer than infinity is the 90mm M macro. If one is looking for closer focusing with a M mount lens, the extenders like the hawks and OUFRO will work, but if one wanted to retain IQ at close focusing with a EVF/LCD Sony camera then why not look at a SLR macro lens with adapter?

HI Jim
But it's not about wanting to use the camera for macro, it's about the occasional desire to get a bit closer than the 0.7m limit - I also have an OUFRO, but that's not much use because you then can't focus at infinity and use the lens as an ordinary lens.

The attraction of the helicoid adaptor is that for most of the time you can just use it as a normal adapter, but for those occasional flower shots you don't need to change the lens.

All the best