FS: Rear Converter-A 2X-L and 1.4X-L
Is there any material difference between the earlier black bodied ones and these grey ones?
No idea... never hold of the earlier black one. However, this one seems more rugged.
https://www.pentaxforums.com/lensreviews/Pentax-K-Mount-Teleconverters-c50.html
pengbai
Member