I will never be able to justify one of the new lightweight supertelephotos, but I am quite likely to purchase the Canon EF 500mm f4.5 L in the next couple of years. I don't really want to get back into one of the older 4-5 kg supertelephotos but the f4.5 weighs in at a very manageable 3 kg for regular handheld use.
Rebels can take EF or EF-S lenses. Full frame only take EF. So when I buy an EF-S lens I am limited should I choose to upgrade to full frame. Questio: What is the advantage of EF-S vs EF lenses on APS-C cameras like Rebel? Thank you. Art
But on an APS-C system, with its smaller sensor size, a "normal" lens is between 30 and 35mm, and a 50mm lens is a mild telephoto. So a normal APS-C zoom lens will typically have a range of around 18 to 50mm. Similarly, FF telephotos are longer, and FF WAs not as wide, as they "should" be for an APS-C camera.
I see the same thing with the EF-M 55-200 IS STM vs the EF-S 55-250 IS STM on the Canon M6ii: Both are of comparable IQ, but the EF-M appears to be slightly sharper with more contrast. The images 'pop' just a little more and need less sharpening in post. Video with the EF-M versions also seem to be more colorful and crisper over the EF-S versions.
This is the big question. The marked difference between Canon EF-S lenses and Canon RF-S lenses is that EF-S lenses will only fit on crop-sensor APS-C Canon EOS DSLR like the EOS 850D, EOS 90D and EOS 7D Mark II. You simply can’t use EF-S lenses on full-frame EOS DSLRs as they have an EF mount. Whereas RF-S lenses will fit on both APS-C Canon
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canon ef and ef s difference
