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

RF 400, or EF 400 with adapter?

Started Jul 11, 2021 | Discussions thread
RogerZoul
RogerZoul Veteran Member • Posts: 3,243
Re: RF 400, or EF 400 with adapter?
2

BirdShooter7 wrote:

Unless I planned on using the the lens on an old EF body I’d definitely go for the RF since it has the newer mount with faster communications capabilities. It will be interesting to see if any noticeable differences exist as people get a chance to try the RF version, especially if they already have experience with the EF.

The 1-5 RF and the 1-4 EF have existed along side each other for nearly a year now. Seems like if something concrete could be identified about communication speed between body and lens we know of it by now.  Instead, we seem to be pushing the can down the road to the newly released 400 and 600 big whites. Personally, I am doubtful about any improvements beyond coordinated IS, especially for the big primes since they are really the same lens with the adaptor tacked on. All that said, unless money was the issue, I’d get the latest and greatest for the mount as that is generally the best practice.

 RogerZoul's gear list:RogerZoul's gear list
Canon EOS R5 Canon EF 500mm f/4.0L IS II USM Canon RF 35mm F1.8 IS STM Macro Canon RF 100-500mm F4.5-7.1L IS USM Canon RF 800mm F11 IS STM +31 more
Post (hide subjects) Posted by
cjb
cjb
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow