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I see... I wouldn’t just replace my er lenses by er either. But due to some financial issues, we had to sell the majority of our bodies and lenses (10 L lenses). Now things are going better, so investing again. But the image quality of the ff lenses is better then ef (the price is too...), so prefer to go Rf where the value for money is better... (and I can pay it...)

Go for it 😁
I‘m also filming with an canon c200 so I‘m staying with EF glass ✌🏻

Nice too! And indeed quite an extra reason to stay at ef :-)