RF 400, or EF 400 with adapter?

quiquae wrote:

BirdShooter7 wrote:

tkbslc wrote:

BirdShooter7 wrote:

tkbslc wrote:

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.

Canon themselves have said it's the latest EF lens in RF clothing. It can't shoot more FPS or focus faster. It doesn't have the highest available stabilization stops like a true RF redesign. Just look at pictures of the RF version and you can see there's a silver adapter bolted on the end. They didn't even design new white lens body down to the mount. It's no different than if you did it yourself, except you can't remove it later.

I'd definitely get which ever was cheaper. Honestly, I'd get a used EF 400mm II. Save about half and the pictures will be the same.

Can you show me where they said it doesn’t perform AF any better? All I remember reading was that it has the same optical formula.

It's the exact same lens with the same motors, how could it perform AF better?

If it’s just the identical lens with an adapter attached, why didn’t they release it months ago????

According to the recent Canon executive interview, they weren't planning to make an RF variant of the 400F2.8 at all, but got pushed into it by customer feedback. It isn't surprising that it took time for such change of plan to happen, especially when a lot of other completely new RF lenses are competing for the engineering team's time. In fact, I'd rather question why they haven't put it off for another year or so, until after they solved the RF lens supply chain issues.

It’s possible that there is zero difference other than that the adapter is not removable but if that’s the case why on earth would CPS not just direct those people who are asking for the RF lens just advise them to use the adapter since it saves Canon and the customers a lot of time and money.  As I said in the very first response to this topic, it’ll be very interesting to hear from people who have had a chance to use both lenses when the RF version gets out in circulation.