CANON 90D vs CANON R10

Alastair Norcross wrote:

thunder storm wrote:

Steve Balcombe wrote:

thunder storm wrote:

amos roth wrote:

Hello, I decided to replace my old CANON 600D, which I owned for +10 years.

Since all my lenses are CANON / for CANON (18-135IS, 50mm 1.8, 17-55mm 2.8, Sigma 10-20mm), I've doubts about 2 optiion: the CANON 90D, or to switch to mirrorless - the R10 (which is approx. the same budget).

The problem: at this point it's uncertain if Canon will bring out RF-s replacements for all your current EF-s lenses. The 18-135mm is kind of replaceable with the RF-s 18-150mm (check AF speed though), the 50mm is a full frame lens and can be replaced by the RF 50mm f/1.8 stm. A wide angle zoom will likely happen, but to my eye it's highly unlikely we will see something like that EF-s f/2.8 standard zoom for the RF mount.

All four can be used seamlessly with the EF-EOS R adapter, so there are no mission-critical issues whatsoever.

The RF 18-150 doesn't just "kind of replace" the EF 18-135, it fully replaces it and beats it in several ways including lighter weight and much better close focusing.

Again: check AF speed.

AF speed is plenty fast enough. People are constantly bad-mouthing STM lenses because the AF isn't quite as lightning fast as USM. There's a lot of absolute nonsense spouted on this subject. The AF on my RF-S 18-150 is as close to instantaneous as makes no difference. There is absolutely no respect, none at all, in which the EF-S 18-135 performs better than the RF-S 18-150. A theoretically slightly faster focus, which will never make any difference whatsoever, isn't a performance advantage, any more than a theoretical top speed of 250mph is a performance advantage over a top speed of 230mph for a car that is going to be driven on actual roads, rather than F1 racetracks. I have used the RF-S 18-150 quite a bit, and actually know what I'm talking about.

Thanks for doing that check for the OP and anyone else.