![Curious about how EF, EF-S, EF-M, RF, and their adapters work? Come be confused by my giant picture (or ask in the comments) : r/canon Curious about how EF, EF-S, EF-M, RF, and their adapters work? Come be confused by my giant picture (or ask in the comments) : r/canon](https://preview.redd.it/fnnq2w6870451.png?auto=webp&s=2bbd1b1255b6d9d2d6c69f46f0766d108d59ebca)
Curious about how EF, EF-S, EF-M, RF, and their adapters work? Come be confused by my giant picture (or ask in the comments) : r/canon
![Amazon.com : VILTROX EF-L Pro Auto Focus Lens Mount Adapter with Security Lock Compatible with Canon EF/EF-S Lens to L Mount Camera Leica SL2/Lumix S1 S1H S5/Sigma fp L,Idea for Large Lens : Amazon.com : VILTROX EF-L Pro Auto Focus Lens Mount Adapter with Security Lock Compatible with Canon EF/EF-S Lens to L Mount Camera Leica SL2/Lumix S1 S1H S5/Sigma fp L,Idea for Large Lens :](https://m.media-amazon.com/images/I/71dKJcDhyqL.jpg)
Amazon.com : VILTROX EF-L Pro Auto Focus Lens Mount Adapter with Security Lock Compatible with Canon EF/EF-S Lens to L Mount Camera Leica SL2/Lumix S1 S1H S5/Sigma fp L,Idea for Large Lens :
![Confused about EF Lens FOV vs EFS when both are on APSC.: Canon EOS 7D / 10D - 90D Talk Forum: Digital Photography Review Confused about EF Lens FOV vs EFS when both are on APSC.: Canon EOS 7D / 10D - 90D Talk Forum: Digital Photography Review](https://thelightmatters.com/wp-content/uploads/2012/01/ef-efs-illuminance.png)
Confused about EF Lens FOV vs EFS when both are on APSC.: Canon EOS 7D / 10D - 90D Talk Forum: Digital Photography Review
![Amazon.com : EF-EOS M Lens Adapter Auto-Focus Lens Converter Ring Compatible for Canon EF/EF-S Lens and Canon EOS-M (EF-M Mount) Camera EOS M M2 M3 M5 M6 M10 M50 M100 : Electronics Amazon.com : EF-EOS M Lens Adapter Auto-Focus Lens Converter Ring Compatible for Canon EF/EF-S Lens and Canon EOS-M (EF-M Mount) Camera EOS M M2 M3 M5 M6 M10 M50 M100 : Electronics](https://m.media-amazon.com/images/I/61e0demdnlL.jpg)