# How to use Canon EF lenses on an RF mirrorless body with an adapter?

> Canon's official EF-RF adapter lets you use your entire EF and EF-S lens collection on any RF mirrorless camera with full autofocus, image stabilization…

URL: https://camerashop.com.eg/how-to-use-ef-lenses-on-rf-body/
Language: en

## Canon’s official EF-RF adapter lets you use your entire **EF and EF-S lens collection on any RF mirrorless camera** with full autofocus, image stabilization, and electronic aperture control. There is zero optical quality loss — the adapter is simply a spacer with electrical contacts.

## **Setting up the adapter**

**Step 1:** Remove the RF body cap from your camera and the rear cap from your EF lens.

**Step 2:** Attach the EF-RF adapter to the camera body first. Align the red dot on the adapter with the red dot on the body, twist until it clicks.

**Step 3:** Mount the EF lens onto the adapter. Align the red dot (EF) or white dot (EF-S) on the lens with the corresponding dot on the adapter, twist until it clicks.

**Step 4:** Turn on the camera. The lens is recognized automatically — autofocus, IS, and aperture all work immediately. No firmware updates or settings changes needed.

## **Adapter versions available**

**Standard EF-RF adapter:** The basic adapter. No glass, no extras. Full functionality. This is all most people need.

**EF-RF adapter with Control Ring:** Adds a customizable ring on the adapter that you can assign to ISO, aperture, exposure compensation, or other functions. Like having an extra control dial.

**EF-RF Drop-In Filter adapter:** Has a slot for drop-in filters (ND, CPL) between the lens and body. Extremely useful for video — one ND filter works with every lens instead of buying filters for each lens diameter.

## **EF-RF adapters at Camera Shop Egypt**

## **Performance with adapted EF lenses**

**Autofocus:** Modern EF lenses (L series, STM, Nano USM) autofocus nearly as fast as native RF lenses. Older EF lenses with micromotor AF may be noticeably slower.

**Image quality:** Identical to the EF lens on a DSLR body. The adapter adds no glass and introduces no degradation.

**IBIS:** RF bodies with IBIS (R6, R5, R3) provide stabilization to EF lenses that have no IS built in — giving vintage primes stabilization they never had.

**Eye AF:** Works with adapted EF lenses. The RF body’s superior AF system actually makes many EF lenses focus better than they did on DSLR bodies.

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If you are transitioning from Canon DSLR to RF mirrorless, buy the standard EF-RF adapter immediately — it costs very little and makes your entire EF lens collection instantly compatible. Buy new RF lenses gradually over time.

## Gear that does this

Available in Egypt and suited to what this guide covers.

- [Canon RF 24-105mm F2.8L IS USM Z](https://camerashop.com.eg/product/canon-rf-24-105mm-f2-8l-is-usm-z/) - 160000 EGP, in stock, SKU 2413
- [Canon RF 85mm f/2 Macro IS STM Lens](https://camerashop.com.eg/product/canon-rf-85mm-f-2-macro-is-stm-lens/) - 32500 EGP, in stock, SKU 2296