Canon General Purpose/Event Lens

Rexgig0 wrote:

Focal length is focal length. Canon does not label its EF-S lenses with a mathematically-adjusted figure. Canon's EF-S 24mm lens will "see" the same angle-of view as a Canon EF 24mm lens. The smaller sensor of the APS-C camera body effectively crops the images, which are then effectively magnified when viewing at any given image size, whether it be on the camera's LCD, or on a monitor.

On the original topic, well, the only EF-S-spec lens I bought new is my EF-S 10-22mm, which is a wonderful optical instrument, but must be used carefully at events populated by human subjects, as the rectilinear effect, that keeps vertical lines true, will distort rounded, 3D things, such as human heads and bodies, near the borders of the image.

I preferred a 35mm prime lens at events, perhaps supplemented by the 10-22mm, until I added a pre-owned 5D, and later, D700 cameras, which are full-35mm-frame sensor cameras, with no crop factor. I have not, however, been "the" photographer at an event, expected to produce "the" images, so my lack of a general-purpose/mid-range EF-S zoom was not a problem for me. (A Nikkor 24-70/2.8G lens is my current "event" lens, though, of course, on a Nikon full-35mm-frame-sensor camera.)

Thank you for clarifying that in simpler terms, I have a much better understanding of it now!

Do you think a prime lens would be a better choice for a primary lens? I've heard the sharpness on them is incredible, perhaps they're a lot sharper on crop sensors than zoom lenses are? But I could be wrong.