Canisdirus

I'm sure everyone defends their positions...human nature.

You even see folks continue to recommend Olympus...no one wants to think they have chosen poorly (another coin saving format with lesser results).

I don't care what folks do...not my call or judgement.

But it's never as good or better than native.

The Sony adapter is probably the best out there...and it still lags behind native.

Of course it lags compared to native...it has to translate data...from the lens...to the adapter...to the body.

Native goes...lens to body.

Last time...no free lunches in engineering.

If you still don't get it...go buy Olympus.

Architect1776 Loc: In my mind

You have NEVER used the Canon EF-RF adapter so you are completely clueless.
Your ignorance is overwhelming.
I agree that Sony fails and Olympus as well.
Add Nikon to that pile as well.
But you seem to keep talking about Sony and now Olympus failures when the issue is the Canon EF to RF adapter that you know absolutely nothing about. You are clueless about EF lenses let alone the R system.
Ans who knows what you know about the Olympus as well.

Canisdirus

I don't need to...

It won't be as good as a complete RF native system.

imagemeister Loc: mid east Florida

https://fstoppers.com/reviews/how-well-does-canon-r5-work-ef-lenses-580752

Since the RF-EF adapter affects FPS, I cannot help but think it may affect AF in some small way - maybe only measurable under lab conditions ! ? And, also, can greater than optimum contact resistance (dirty contacts) exacerbate marginal signal transfer with other/greater symptoms ??

Architect1776 Loc: In my mind

So?
How much does that cost?
It is obvious to intelligent people that every newer generation is slightly better than the previous.
Do all of you replace your existing lenses every time a next generation comes out?
NO. I read about you best in the world old 30 year old lenses that you are using.
The point is that EF lenses are totally and 100% compatible with the R cameras and gain new features and many do better on R bodies.
Unlike other manufacturers.
Is the Sony second generation lens better than the first generation?
Did you scrap your entire Sony system when you bought the latest gee whiz Sony body because you had an older version lens?
Same question for Nikob?
Sadly for Nikon most had to because of lack of compatibility of F lenses on Z bodies.
If one desires to spend the money to buy all new lenses go for it, but I doubt 99% will not have any better photos of the vacation or grandkids than they currently get.

Henrystock51 Loc: Charlotte, NC

Just thinking, for me part of the decision making process has got to be value for the money.
For instance, I would very much like to have a long lense, e.g. 400mm or greater, preferably with zoom.
I have a Canon AOS camera. A Canon lense in that size is going run into thousands of dollars. I can't afford that. So, I am looking at a Tamron lense with a Canon mount. That still could run over a thousand, but not multiple thousands.
I won't know until I buy it whether it was a good choice, but I know people that seem to get by with it.

Canisdirus

You seem to becoming unhinged at the fact that adapters don't translate the info as fast as a native system.

This is not a revelation...just plain old engineering.

I don't care what you do frankly...or how you do it...never did.

Adapters don't work as well as native systems...across the brand board.

That's it...that's all.

Architect1776 Loc: In my mind

You seem to be mixing Canon with Sony and Nikon.
Canon EF to RF adapters make EF lenses work better on R cameras including focusing as fast or better than they did previously.
You obviously have absolutely NO experience with EF to RF adapters and make completely ignorant statements on things that you are clueless about.
Every time you generically say adapters and I agree that with Sony and Nikon you are correct. But I and thousands of others who actually use and have proved that adapted EF lenses to R cameras this is different.
Adapted EF lenses do as well as ever and with the control adapter actually perform better with enhanced functionality.
You have every time dodged the specific issue at hand and try miserably to lump the Canon adapters with marginal adapters by Sony and Nikon.
Specifically point out specific failures of the EF to RF adapters next time. We are just getting tired of your total lies about the EF to RF adapters.

Canisdirus

It's brand wise...no exceptions.

You don't get it...fine by me...bye.

Engineering.

imagemeister Loc: mid east Florida

This is a very BOLD statement - do you have objective proof ?? - please see my link above ......

ALL adapters have some problems ......does NOT matter who makes it - some, more problems than others. Suggest you call a Canon rep about this .....