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

Canon EOS R7 performance with EF 300mm f2.8 (1st version)

Started 1 month ago | Discussions thread
BirdShooter7 Veteran Member • Posts: 9,127
Re: Canon EOS R7 performance with EF 300mm f2.8 (1st version)
1

Tippler wrote:

BirdShooter7 wrote:

I’m not sure if you mean the non-IS version or the original IS version but I have tried the original IS version on the R7 and I get the full 15fps with EFCS. With ES I can only get 15fps, no luck with 30fps. The IS works when you first turn the camera on but when if goes to sleep and wakes back up the IS doesn’t come back on unless I physically turn the IS switch on the lens off then back on which is very annoying. The AF area is also limited to something like 80% which is still quite usable, probably better than any DSLR.

The EF 300mm f2.8 (1st version) predates the IS version. It is my understanding (which may not be correct) is that this early lens was from an era of lesser technology, including simpler algorithms due to lesser processing power. The lens then does not support upgraded features of later cameras, including improved focusing speed.

Tippler

Yes, the non-IS version is focus-by-wire and not as fast focusing as the later IS version that if I recall correctly came out in 1999. Unfortunately I don’t have any firsthand experience with the non-IS lens on any R camera. There is a recent thread on the EF lens forum about the EF 500mm f/4.5L USM that uses the same tech as the EF 300mm f/2.8L USM that might be of interest.

https://www.dpreview.com/forums/post/66740730

-- hide signature --

Some of my bird photos can be viewed here: https://www.flickr.com/photos/gregsbirds/

Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow