EF vs RF

The C70 is oddball as canon dont make any S35 RF lenses.
There are 11 S35 RF Mount lenses, four by Canon themselves:


Traditionally you might want an 18-80 or something to 'cover' a scene with that camera and no booster.
Sigma 18-50mm f/2.8 would be kinda close-ish to that.
 
Just chiming in with my experience of the speed booster:

It's great with the EF24-105II - I used this pair extensively before purchasing an RF24-70 expecting an AF performance gain (more in terms of accuracy and tracking). Didn't notice any difference.

I actually prefer standard zooms with the speed booster because the field of view at the wide end is more useful.

I did do some tests at one point with various Sigma Arts with the speed booster and without. If you pixel peep the speed booster introduces green / purple fringing - no appreciable resolution loss but it definitely has unwanted artefacts. Not noticeable in real world use those.
 

Wow - what a set of horrors! *

Correction.. "they dont make any S35 lenses that one might want"

Like the 17-55 2.8 was kind of a s35 24-105.

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*my friend uses a 24-200 6.3 sony and it is actually very useful if not 'cinematic'
*these 'terrible' lenses can be actually OK if you are not a snob (and it is daytime)
 
I just remembered an EF RF thing.. the possible to add the ND filter to RF cameras/EF lenses.

I though that would be a big deal.. but because I only use my R6 with a 24-70 I have learned not to care about getting 'the correct' aperture.

I use no filter indoors
a 3 stop outdoors

Sometimes I have too much DOF.. but if I were doing 'serious' work I would be using a different camera.

Using the r6 has been a journey of learning to get 'good enough' footage very quicly often of interesting things. It is so small and nimble.
 
The Meike vari nd adaptor has been great for me, a fraction of the price of the Canon version and less colour cast apparently
 
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