ProOptic Pro Optic Multi-Coated 1.4x Tele-Converter for Pentax Autofocus SLR Cameras.

2011-10-09T21:00:00

I bought this TC because I could not find a Tamron or Sigma. Later on, I found a Tamron, used it, compared it, and sold the Tamron and kept this TC. It is the same or better and better price.

Pepe G.

2011-03-05T19:00:00

This converter works just like it should on a pentax k-x with a 300mm lens. Takes a little while to get familiar with it, but works the way you want it to, takes good crisp pictures!

ARLENE Z.

2010-06-06T21:00:00

I have it bridging my Pentax K-x and the 55-300mm zoom lens it came with. It's been a permanent fixture since I bought it. I take bird pictures and this helps me get closer to the birds at a much lower price than a 400mm lens. Works best with the sensitivity of the camera cranked up to iso1600 in shutter priority mode with the shutter speed at 1/320th or faster.

DAVE S.

2009-10-19T21:00:00

Bought this to use with PENTAX DA* 200xf2.8 also bought here.

Ahab

2009-09-28T21:00:00

Bought this to use with the DA* 200/that I bought at the same time. It will not work evan in manual.

Stanley B.