Tidepride wrote:
I have a Canon 77D and have been thinking about purchasing the Canon EF 24-70mm f/2.8L II USM Lens. My question, would the lens produce sharp photos with my crop sensor camera or would it be better to stay with EF-S lenses? If so could someone recommend an EF-S lens that would be some what comparable in performance to the Canon EF 24-70mm f/2.8L II USM Lens. Thank you.
Yes, the EF 24-70mm could make sharp, richly colored images on your camera.
However, you will be spending a whole lot extra for a full frame lens and then just cropping away most of the image when using it on your APS-C format camera.
For $1000 less ($879 vs $1899) you can get the EF-S 17-55mm f/2.8 IS USM... which is capable of equally good image quality, has a similarly "fast" f/2.8 aperture, features equally quick USM auto focus and even has Image Stabilization that the 24-70mm lacks. As a lens designed for APS-C, the 17-55mm just makes more sense on your camera. And the much lower cost is a nice bonus.
The 24-70mm is an "L-series" and the 17-55mm is not (no EF-S lens ever will be, since by definition all L lenses must be usable on all EOS cameras and EF-S are ONLY usable on the APS-C models). The 24-70mm has more "pro" quality build and sealing for weather resistance.... plus that red ring so everyone knows you are using an expensive lens. Oh, and like all L-series the 24-70mm comes with the matching lens hood. The hood (EW-83J) for the 17-55mm isn't included. It's sold separately. but highly recommended (Canon OEM, $50 or Vello clone, $20).
In fact, the 17-55mm on an APS-C camera like yours "acts like" approx. 24-70mm on full frame (actually it "acts like 27-88mm... close enuf for government work).
These two lenses essentially serve the same purpose on their respective sensor format cameras. They're both "moderate-wide-to-normal-to-short-telephoto" zooms.
The EF-S 17-55 and EF 24-70 are surprisingly similar in size and weight. The full frame lens is only a little larger and heavier. However, the 17-55mm uses 77mm filters while the 24-70mm II requires 82m, which tend to be significantly more expensive.
A much more thorough review of the EF-S 17-55mm is available here:
https://www.the-digital-picture.com/Reviews/Canon-EF-S-17-55mm-f-2.8-IS-USM-Lens-Review.aspxIt so happens Canon also offers EF-S 17-85mm IS USM ($299) and EF-S 15-85mm IS USM ($799) lenses, which cover the same range as the EF 24-70mm plus even more... they're both wider and longer. However, neither of these is an f/2.8 lens. They have smaller, variable maximum apertures... so if that's an important consideration for you, the EF-S 17-55mm f/2.8 IS USM is more likely to meet your needs. The image quality
P.S. I do have and use a Canon EF 24-70mm f/2.8. However, I used both APS-C and full frame cameras. If I only had APS-C, I wouldn't hesitate to use the EF-S 17-55mm instead.