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Advice for a new canon shooter - EOS R8


Hi I haven’t had a canon camera in a few years been an exclusive fuji shooter for a while now but just bought an r8 and have been disgusted by the prices of lenses besides weight / size which i don’t really mind what is are some reasons i shouldn’t just get an ef-rf adapter and ef lenses for semi professional work.



There are reasons to get RF lenses, they are often smaller, and lighter than EF versions, plus a few camera features like focus stacking, and for some cameras the fastest drive speed is only possible with RF lenses. 

I currently use a lot of EF lenses on the control ring mount adapter with my EOS R6 / R6 Mark II / R10 cameras and actually only have the RF-S 18-150mm kit lens from the EOS R10 and the RF 28-70mm F2L USM lens that are native RF. I actually prefer knowing that the control ring is always in the same location when using EF lenses, as it moves depending on the RF lens used.

I have had some great deals on used EF lenses from reputable dealers in recent years. Since you have a full-frame EOS R8 make sure to stay clear of EF-S lenses as these will only allow you to capture 9.3MP images.

Brian - Canon specialist trainer, author and photographer
I use British not American English, so my spellings may be a little different to yours

According to  , EF and EF-S lenses may be used for depth compositing. I have used an EF-S lens on my EOS R5 for focus stacking.

I do not have any RF lenses.

There is a list of lenses compatible for focus bracketing at: 

Some of the older EF lenses do not auto focus as well as newer EF lenses.


The depth compositing function in DPP does indeed work with EF lenses and also DSLRs that don't even have the focus bracketing feature. I've also used it in the past with DSLRs, but it's not really relevant to this.

The Canon list of lenses compatible with focus bracketing you linked to shows that only five EF and two EF-S lenses are compatible with focus bracketing feature in the EOS R8, so in general most EF lenses do not support the function. 

Brian - Canon specialist trainer, author and photographer
I use British not American English, so my spellings may be a little different to yours

Rising Star
Rising Star

Adding to what Brian mentioned on used EF lenses from reputable dealers... a lot of camera shops are flooded with EF lenses right now - so many people trading them in and upgrading to RF lenses.  Most should be easy to find.  Don't forget to check out B&H and Adorama for used lenses as well.  

I do own a few RF lenses and love them... but I can't see replacing my favorite EF lenses.  They work perfectly fine on my RP, R8, and R6 Mark II.  


Digital: Canon R6 Mk ll, R8, RP, 60D, various RF, EF, and Rokinon lenses
Film: (still using) Pentax Spotmatic, Pentax K1000, Pentax K2000, Miranda DR, Zenit 12XP, Kodak Retina Automatic II, Kodak Duaflex III, and various lenses

Rising Star

I own the R6 M2 and the R50, one RF lens and a dozen EF lenses (Canon and Sigma) with an adapter. All my EF lenses work perfectly and produce sharp images. Some have stated that the longer Sigma lenses have a tendency to rack or search when focusing. I own the Sigma100-400mm and the 60-600mm and both perform as well as the one RF lens I own, neither have had any focusing issues and the images they produce are sharp.

Don't get me wrong the RF lenses are an excellent addition if you have the money. I plan on adding the RF100mm F2.8 L MACRO IS USM in the next couple days as it has been recommendation by a respected member of the community. I also have the RF 200-800mm paid for and waiting for Canon to get its act together and send the lens to the supplier so it can ship.

Be a different person on the web, be kind, respectful and most of all be helpful!

90D ~ 5D Mark IV ~ R6 Mark II ~ R50 and way to many EF lenses
Photoshop and Topaz Suite for image processing