EF lens compatibility with EOS R7

[Nappert]

Newbies here.  We're wondering if we can get my daughter's Rebel T1i lenses (EFS 55-250; EF 50mm; and EFS 18-55) to fit/adapt to our new EOS 7. Thank you for any help.

[Nappert]

My bad...EOS R7. So many letters and numbers...lol!

[deebatman316]

That's a very good camera. That's Canon's top of the line APS-C camera. With IBIS your lenses will be stabilized too. 

[deebatman316]

Note the EOS R7 DOES NOT have a built in flash like the other APS-C R series cameras. Or even its predecessors the 7D series. So if you need a flash an external speedlite would need to be purchased separately. 3rd Party speedlites often cause problems. I would look into a Canon speedlite if flash is needed. Also depending on your budget and what kit you're getting. The EF-S 18-55mm kit has been replaced by the RF-S 18-45mm F/4.5-6.3 IS STM kit lens. Also your current EF 50mm prime lens (assuming you have the EF 50mm F/1.8 lens) has been replaced by the RF 50mm F/1.8 STM lens. Also the EF-S 55-250mm F/4-5.6 lens has been replaced by the RF-S 55-210mm F/5-7.1 IS STM lens. Note these new zoom lenses have shorter focal lengths compared to their older counterparts. They also have newer faster AF motors too a lot of older lenses did not have. A lot of older lenses used slow AF Motors called "Micro Motor" and lacked image stabilization. But some of the lenses in the EF-S Mount were upgraded STM and added IS. STM stands for Stepper Motor & IS stands for Image Stabilization. STM AF Motors are quieter and faster. IS allows you to use slower shutter speeds and eliminate camera shake while taking hand held pictures in low light or with long lenses. Also note that newer lenses all utilize what's called "focus by wire". The focus ring is NOT mechanically connected to the lens' focusing elements. Instead the focus ring is electronic.

[Hanani]

Hi if I may ask a sort of a follow up question. I have the 7D ( nearly 12 years old) and bought the R7 2 years ago. Both have the kit’s zoom lenses 18-135/150

i also have the adapter.

my question is: is there any advantage to use the older 7D’s zoom lens over the R7 ? The older one feels more heavy and not as “plastic lens” as this of the R7.

thanks very much 🙏🏼

[johnrmoyer]

I do not have the RF lens, but sometimes use the EF-S lens with my EOS R5. I think that the EF-S18-135mm f/3.5-5.6 IS USM is a very good lens with fast and accurate auto focus. It was listed by Canon as a lens recommended for depth composite/focus stacking.

Sideoats Grama grass (Bouteloua curtipendula) blooming in Norman, Oklahoma, United States, October 4, 2023 ; F/11 ; ISO 100 ; 1/16 second ; 29 mm ; EF-S18-135mm f/3.5-5.6 IS USM

https://www.rsok.com/~jrm/2023Oct15_birds_and_cats/2023oct04_wildflower_IMG_6696c.html 

[Hanani]

Thanks for enlightening answer. Great help.

thanks 🙏🏼

[shadowsports]

Greetings,

It is more helpful for others looking for answers if you do not insert yourself into the middle of an older topic. 😉

You also aren't able to mark a question as answered in someone else's thread...please consider this for future.  

There are not huge differences between the two lenses optically.  The differences are primarily in design and construction.

https://cameradecision.com/lenses/compare/Canon-RF-S-18-150mm-f3.5-6.3-IS-STM-vs-Canon-EF-S-18-135mm...

However, since lenses are the real investment in photography, I'd suggest sticking with the RF-S 18-150 for the R7.  It doesn't require an adapter.  It's will be supported and serviceable for longer.  The performance between the two is almost negligible with the majority of differences being mostly design and construction as I mentioned.  One's a little lighter and can focus a little more closely, etc.  I'd recommend using the 18-150 primarily for its longevity.  You can sell the 135 with the 7D.  I did own the 18-135 about 7 yrs ago.  It was a nice kit lens and spent a good deal of time on my T6s.  Since you have the R7, I'd use the native glass designed for it.🙂

[Hanani]

First my apology. You are absolutely right about the placement of my question. 🙏🏼

thanks very much for your detailed answer. And thanks for referring me to the article. 

🙏🏼 

Hanani

[Tronhard]

Yes, you can use your current EF-S and EF lenses with the EOS R7.  The R7 has what is called an APS-C crop sensor and the EF-S lenses are specifically designed to work with that size sensor.  EF lenses will work with Full Frame or APS-C cameras.  As mentioned you will need an EF-RF adapter from Canon (preferably).

Other bodies that would work with your current lenses are the EOS R10, R50 and R100  each being cheaper and offering fewer features than the previous in the list.  The R7 is currently the best in class.

[Nappert]

Thanks Trevor. We do need to spend A LOT more time learning things in the Canon manual. We barely know how to take a clear photo! Thank you for the reply. We're hoping for some decent photos on our upcoming trip.