Due to the design of the Extender RF 2x it can only be fitted to specific models of the RF lenses, which does not include your RF-S 18-45mm and RF=S 55-210mm lenses. This is because the extender has a protruding front element that sits inside the rear of the lens it is fitted to. There is no space in your lenses for the extender.
The following lenses can be used with the 2x or 1.4x extender;
- RF 400mm F2.8 L IS USM
- RF 600mm F4 L IS USM
- RF 600mm F11 IS STM
- RF 800mm F5.6 L IS USM
- RF 800mm F11 IS STM
- RF 1200mm F8 L IS USM
- RF100-300mm F2.8 L IS USM
- RF100-400mm F5.6-8 IS USM
- RF100-500mm F4.5-7.1 L IS USM (only when lens is zoomed to 300mm or more)
Brian
EOS specialist trainer, photographer and author
-- Note: my spell checker is set for EN-GB, not EN-US --
