ProOptic Pro Optic Multi-Coated 1.4x Tele-Converter for Sony Alpha & Maxxum Cameras.

2012-03-25T21:00:00

I bought this with the Pro-Optic 500/6.3 lens, and have not used it with any other lens. On an APS-C camera the mirror lens plus the TC gives you 1050mm. Focus, especially in dim light, is almost impossible. Inasmuch as this is a manual device, I haven't tried it on any of my autofocus lenses, and thus can't testify as to its optical quality.

John T.

2011-11-28T19:00:00

This converter makes focus a little more difficult in low light, which is no surprise. My camera doesn't register any change in f/stop when I attach it to my 100-300mm f/4 lens.

epshade

2009-07-21T21:00:00

Great buy for the money, nice sharp images.

2dogs2

2009-06-09T21:00:00

Lot cheaper then going and buying another lense

hairman

2009-02-05T19:00:00

Very well made and very sharp. At a fraction of the cost of a manufacturer's converter, I can't see any difference in the end result; sharp and clear photos.

CHARLES C.