This slight difference is a combination of experience, use and preference. Don't exclude Sigma, their 24-70 might be your preference over Canon's, but Canon's 85mm might be your preference over the Sigma. It's good to have something to compare too and to choose from! I love my Sigma 17-50 and my 1.8 135. Here’s a look at each adapter and the relative pros and cons of each. Official Canon EF-EOS R Mount Adapters. Canon currently offers four models of EF/EF-S to RF adapters. They range in price from $99 to $399. Canon Mount Adapter EF-EOS R — $99. The basic adapter is the most affordable of the Canon line. No extra features or bells and 1. EF-Objektive sind für Standardgrößensensoren bestimmt, während EF-S-Objektive für APS-C-Sensoren. 2 vorgesehen sind. Der Abstand zwischen dem hinteren Element und dem Sensor ist für EF-S-Objektive näher als für EF-Objektive. 3. EF-S-Objektive sind kleiner und billiger als EF-Objektive. 4. Es sind mehr EF-Objektive verfügbar als EF-S Yeah, the adapter is a pain sometimes, but the (avoided) humongous price difference with RF lenses is well worth the pain of using the EF lenses with the adapter; and you can also feature many interesting third party lenses, with solution that are not available in RF and are 30yo (and sh*tty) in EF (50 f1.4 hellooooo). 3 days ago · Yes. At least for Canon DSLRs, several third-party manufacturers make lenses that fit EF and EF-S mounts, and some of them are very good. Sigma and Tamron are big lens brands that make optics for Canon DSLRs, and in some cases they are sharper or better value than Canon's own optics. Lens adapters come in two forms: those that fit between the rear of the lens and the camera body, and those that attach to the front of the lens. The ones that go on the front are concerned with enabling a lens to focus closer than usual, but there’s a greater variety of adapters that attach to the back of the lens. Read more: Best Canon Jun 6, 2019 at 16:31. You'll be much better served by using the EF-S 55-250mm f/4-5.6 IS STM (or even the older EF-S 55-250mm f/4-5.6 IS II) than the EF 75-300mm f/4-5.6 that is the worst lens in Canon's current lineup. Yes, you can technically do it. But it will become effectively a 120-480mm lens from an FOV perspective (no pun intended). 2. The distance between the rear element and the sensor is closer for EF-S lenses than for EF lenses. 3. EF-S lenses are smaller and cheaper than EF lenses. 4. There are more EF lenses available than EF-S lenses. 5. EF lenses can be used with EF and EF-S camera bodies while EF-S lenses can only be used with EF-S camera bodies. All EF-M lenses to date, including the EF-M 32mm f/1.4, utilize a stepping autofocus motor (STM). The 32 f/1.4 uses a lead screw-driven (vs. gear-driven) STM system that is very quiet, producing a light "zzzzzz" with some clicks that can be heard in a quiet environment. Autofocusing is smooth, ideal for shooting video. Canon EF-S 15-85mm f/3.5-5.6 IS Vello EW-78E Lens Hood f/Canon LHC-EW78E 72mm Snap-on Tulip Lens Hood (Version II) LHS-72II Canon EF 16-35mm f/2.8 L Vello EW-83E Lens Hood f/Canon LHC-EW83E 77mm Snap-on Tulip Lens Hood (Version II) LHS-77II aPBig.