Cheap manual extension tubes, I have a problem

Started Jun 27, 2012 | Discussions thread
ForumParentFirstPreviousNextNext unread
Flat view
Trevor Carpenter
Veteran MemberPosts: 9,131
Like?
Cheap manual extension tubes, I have a problem
Jun 27, 2012

I bought a set of cheap manual extensions tubes see link

http://www.ebay.co.uk/itm/ws/eBayISAPI.dll?ViewItem&item=260805298069&ssPageName=ADME:L:OC:GB:3160

Trying them out I put them between my 14-42 and the camera no problem but now I can't get the ring to release from the lens. There is a small silver knob which I assume must have something to do with the removal but I can't see what I have to do to it

Does anybody have any experience of these

-- hide signature --
ForumParentFirstPreviousNextNext unread
Flat view
ForumParentFirstPreviousNextNext unread
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow