Aperture priority with t mount lens

Started 1 week ago | Questions thread
ForumParentFirstPrevious
Flat view
whvick Veteran Member • Posts: 5,623
Aperture priority with t mount lens

Back in the day I took pictures with a 400 mm t-mount lens and a 20 d set on aperture priority. It worked fine.

now my son has taken to photography with a 40D I gave him, and I want to give him that lens. So I ordered a t mount with a focus confirm chip. The focus confirm works fine, but aperture priority does not. It has been ten years since I did this and I assume I am forgetting something. Any suggestions as to what it might be?

 whvick's gear list:whvick's gear list
Canon EOS 5D Canon EOS 30D Canon EOS 50D Canon EF 85mm F1.8 USM Canon EF 24-85mm f/3.5-4.5 USM +9 more
ANSWER:
This question has not been answered yet.
Canon EOS 40D
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