Help! Lens doesn’t work, why?

Started 3 weeks ago | Discussions thread
ForumParentFirstPrevious
Flat view
Jon Donahue Contributing Member • Posts: 783
Help! Lens doesn’t work, why?

Just got an old 50mm f/1.4 smc Pentax-m lens.

it doesn't seem to work on either my K-70 or K-5 IIs cameras. The aperture ring works... the aperture hole gets larger and smaller as I turn it. The focus works. But the cameras don't seem to know it is there... see the live view photo below, which just flashes an F— ... I can't adjust the shutter speed on M Manual or any other setting... and the shutter button won't depress all the way to take a picture. Bought it used from Keh, and their website said it would work with the K-70.

There is also a milky white little button on the lens ring, but it does not depress or move. Have no idea what it is for. Help! Is there some menu setting to get this old lens working?



 Jon Donahue's gear list:Jon Donahue's gear list
Ricoh GR II Pentax K-5 IIs Pentax K-70
Pentax K-5 IIs
If you believe there are incorrect tags, please send us this post using our feedback form.
ForumParentFirstPrevious
Flat view
ForumParentFirstPrevious
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow