Showing results for 
Show  only  | Search instead for 
Did you mean: 

EOS M50 Mark II Lens compatibility


Hello…I realize that this may seem a rudimentary question but I am interested in purchasing a super telephoto lens for my Canon EOS M50 Mark II camera for nature and wildlife photography. As evident by my posting this question, I am not a professional and as much as I would like to own one, I don’t want to spend $12K on a lens. I saw some 600mm lenses that are recommended for a cost of around $1,000.00-$1,500.00 but I don’t know if they fit on my camera. I am looking for recommendations. Thank you in advance!



Your camera natively mounts EF-M lenses. In order to use EF or EF-S lenses you must use a mount adapter. RF lenses are NOT compatible with your camera. I provided a list of compatible lenses below.

Camera TypeEF FF & 35mm AF Film SLR (Red Mounting Index)EF-S APS-C (White Square Mounting Index)EF-M (White Circle Mounting Index)RF (FF) (Red Oval Mounting Index)RF-S (APS-C)  
FF DSLR or EOS 35mm AF SLRYesNo NoNoNo
EOS-M SeriesYes*Yes*YesNoNo
EOS R Series FFYes*Yes*NoYesYes*
EOS R Series APS-CYes*Yes*NoYesYes

*Natively Mounts No mount adapter needed

* Not compatible won't mount at all

*Compatible with a Mount Adapter 

*Image sensor capacity reduced by 2.5x (APS-C lens 1.6x crop)

**Note RF-S is NOT a separate mount. Instead its an RF Mount lens with an APS-C Image Circle. "-S" means small image circle meaning smaller than FF or 35mm film.

**Note EF-S IS A Separate Mount. Designed for APS-C cameras only compatible with all Digital Rebel/ EOS 300D- present models, EOS 20D-90D & the EOS 7D series. It is NOT physically possible to mount EF-S lenses to a Full Frame camera. The lens is intentionally designed to protrude into the camera body. If the lens could be attached to a full frame camera. The mirror would hit the rear element of the lens causing serious damage. Note early APS-C cameras MUST USE FF EF lenses. These cameras are the EOS D30, EOS D60 and EOS 10D. Do NOT confuse these cameras with the EOS 30D and EOS 60D.


Current Gear: EOS 5D Mark IV, EF Trinity, EF 50mm F/1.8 STM, EF 85mm F/1.8 USM, 470EX-AI & 600EX II-RT

Retired Gear: EOS 40D & Sigma 17-50mm F/2.8 EX DC OS HSM

Thank you SO much for the quick reply and the table, it was very useful! 

Greetings Terry_B,

Your camera will accept the following lenses: EF-M and EF / EF-S with an EF-M to EF adapter.  RF lenses are not compatible with your body.  

Do you have a budget?

An EF (full frame) lens is probably the best option.  Sigma and Tamron both make 150-600mm lenses that are very popular for wildlife photography.  They can be had used for about $760 and new for $1100 - $1300.  These two lenses are very popular for wildlife and pair well with bodys that have an APS-C sensor.

Sigma and Tamron also have some lower cost alternatives, but these lenses will not be as well suited for wildlife.

Canon has a few lenses also, but they are double the price of the above starting and don't have the same reach.  

If you provide a budget we can make final recommendations.

Bay Area - CA

~R5 C ( ~RF Trinity, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10

~6D2 (v1.1.1) Retired ~EF Trinity, others ~DxO PhotoLab Elite ~Windows10/11 Pro ~EVGA RTX 3080Ti FTW3 Ultra ~ImageClass MF644Cdw ~Pixel6 ~CarePaks Are Worth It

Hi Shadow! 

‘Thank you SO much for the quick reply! I am looking around $1,000.00 to $1,500.00. I saw that the Tamron 150-600mm was recommended. 


I have the Sigma 150-600mm lens for my EOS Rebel 1500D T7. I'm happy with it for nature, landscape, etc. I got it at B&H Video and Photo.

Canon EOS T7; EF-S 18-55mm IS; EF-S 28-135mm IS; EF 75-300mm; Sigma 150-600mm DG

Thank you SO much for the quick reply and recommendation!


The EF-M to EF adapter is available refurb from Canon.  Great price.

Shop Canon Refurbished Mount Adapter EF-EOS M | Canon U.S.A., Inc.

Bay Area - CA

~R5 C ( ~RF Trinity, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10

~6D2 (v1.1.1) Retired ~EF Trinity, others ~DxO PhotoLab Elite ~Windows10/11 Pro ~EVGA RTX 3080Ti FTW3 Ultra ~ImageClass MF644Cdw ~Pixel6 ~CarePaks Are Worth It

I can't thank you enough, Rick! I mean've been very helpful!