We're told that new diffractive optics super telephoto lenses are on the way, but they may not be for the EF mount.
An unknown source has told us that the 600mm f/4 DO IS that Canon showed at the last Canon Expo could be making its way to the RF mount instead of EF. The same source also claims that two additional DO lenses are in the works, and both are likely going to be for the RF mount.
None of these lenses are expected in 2019, but they may be part of the 2020 roadmap.
More to come…
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Not really. Looks like Canon is focusing on a certain segment for the EOS R. It's also logical to fill out the R line before the EF as the RF lenses are quite sparse at the moment.
But weight is very important for me when I have to walk instead of using the car. So If I had a 600 f4 v2 I would trade it for 600 f4 v3 to shave off about 0.9Kg. I have both the 500 f4 II and 400 4 DO II. Even to use the 500 I have to have a Car or tripod. I can walk and shoot handheld (even for many hours) only with the 400 DO II. So for me the v2 to v3 (for tele EF lenses) would help me if it involved alot of weight reduction. Maybe not 0.9Kg for the 500 but I would welcome say a 0.6Kg (with a change of center of weight close to the body just like the 600 v3). This would take it to the region of the 400 DO and it would be fantastic. Add DO technology and the result would be an even lighter lens. True other people can cope with weight way better than me but I mentioned my wish :)
P.S Add to the fact that there is no EOS R at 50Mpixel yet so these hypothetical DO lenses wouldn't offer a benefit.
If true, this suggests that the go – slow approach we see today is largely due to the fact that there are not a lot of the new lens mount lenses. Once they flesh out those lenses a bit, it looks like the manufacturer is going to get pretty aggressive about pushing people to the new mount.
All that said, we do not see a reliable history of rumors showing up this early having a high accuracy rate.
They are bound to bring out a 1DR and they will need a range of lenses to help sell them.
I'm sure they will still bring out some EF lens but less and less so.
DSLR will die off slowly. Many users will still be using them in 10 years time
When they introduce big whites for Rf, it should be clear, than an fast highend body will be coming. An A9 competitor. The question is: Just FF, or Crop too?
But, and there is a big but, we have to see if Canon can reduce the weight in relation to the new version III teles. The new 600 III weighs 3.05Kg and I would like
to remind you that the 600mm DO f/4 prototype introduced about 2 years ago weighted 3.2Kg!
So they must be able to go significantly lower than 3.05Kg for a 600 DO III to offer something useful.