DPReview.com is closing April 10th - Find out more

Anyone having any focus challenges with EF lenses? (EF 70-300mm f/4-5.6L IS USM)

Started Feb 19, 2019 | Discussions thread
ForumParentFirstPrevious
Flat view
JosephDawson Forum Member • Posts: 96
Anyone having any focus challenges with EF lenses? (EF 70-300mm f/4-5.6L IS USM)

We are finding our EF 70-300mm f/4-5.6L IS USM is not reliably getting focus on the EOS R with the adapter. The lens focuses like a champ on our 7D but it will lock on a subject that is not moving much and then not lock for next few tries. The way to fix the problem is totally pull back zoom or point at something at a different distance and shoot again.

I don't know what the problem is but it is almost like taking multiple pictures where the focus didn't change much between the two images is a real challenge.

Anyone have this lens with the EOS R and what is your experience?

Canon EF 70-300mm f/4-5.6L IS USM Canon EOS 7D Canon EOS R
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