[jms698]

I'm wondering which lenses people consider best for capturing video with the K-7. I don't have a K-7, but I am considering getting one (or the K-8 when it comes out) and want to make sure any lenses I buy will also work well for video.

Questions:

• Zoom or Prime?
• 70mm or 77mm for video (the age old debate, but maybe the choice is clearer, if video is a concern)?
• Best aperture to capture video at?
• Can the K-7 autofocus while capturing video?
• SDM vs. Screwdriver motor (focus motor sound could obvious be a problem, but is there any issue besides this - like smoothness of the focus movement)?

Thanks for any insights.