RF 70-200 or EF 70-200 with Converter for EOS R

f_tiger_f wrote:

Hi there,

I am making a decision to buy one of these lenses for the EOS R, RF 70-200 or EF 70-200, and I need some suggestions badly.

I am thinking of getting the EF mount for two reasons, the price and the possibility of adding a 2x teleconverter so that I can have a 140-400, as I read some posts suggesting it's quite impossible for Canon to make an extender for the mirrorless series regarding the short distance between the lens and the sensor.

Though, I do concern about the AF speed and the image sharpness when stacking the EF-EOS R converter and the extender, as well as the weather sealing.

Canon did say that the extender is compatible with the converter but I do not have a chance to test this specific combo in person so I'm hoping I may get some help here.

Thanks, everyone!

I don't like the air pump design of the new RF 70-200 and its far higher price for the same image quality.  To me, the EF 70-200 on the EOS R is a better choice.  To each their own.

I see you concerned about stacking two adapters between the camera and the lens but I doubt it is an issue.  Put the EF to RF adapter on the R and you have an EF mount camera just like putting your lens combo on a 5D.  It's just as solid.

Therefore, putting the EF 70-200 with the 2x teleconverter on it wouldn't be a problem.  The same as it isn't a problem putting the teleconverter on the EF 100-400 onto the EOS R.