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EF extender on RF mount?

Started 11 months ago | Questions thread
Bigger Contributing Member • Posts: 640
Re: EF extender on RF mount?

sushipep wrote:

BobKnDP wrote:

Steven Blackwood wrote:

The only configuration that will work is camera>adapter>ef extender>Ef lens

I'm not disagreeing, but could you explain?

The RF extender expects an RF mount device at the back and and RF mount device up front

The EF extender expects an EF mount device at the back and an EF mount device up front

An RF camera expects an RF mount device up front

An RF-EF adapter expects an RF mount device at the back and an EF mount device up front.

You cannot mount an RF adapter in front of an RF extender, although if you want to hack up your adapter, you can try

https://www.the-digital-picture.com/News/News-Post.aspx?News=35054

If you put this all together

Camera > Adapter > EF Extender > EF lens

The CommLite CM-EF-EOS R works better with only minor mods:

Re: How did you stack the EF 2x III and EF 1.4x III: Canon EOS R Talk Forum: Digital Photography Review (dpreview.com)

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