Has rounded aperture blades. Canon EF 50mm F/1.8 II. Canon EF-S 18-55mm F/3.5-5.6 IS II. Similar to the number of aperture blades, rounded blades affect the way the light gets through to the sensor. Rounded blades, often only found on more expensive lenses, improve the appearance of the out-of-focus areas. 1 day ago · I'm not sure about the filter size, but if your lens is like other variation of the EF-S 18-55mm lens (mine is an EF-S 18-55 f/3.5-5.6 IS II) it takes a 58mm filter. I use UV multicoated filters on all of my lenses for protection. I purchased some Waka UV multicoated filters (made in Japan) from Amazon for some of my lenses for about $10 each. If you are looking for a way to use your Canon EF lenses on your EOS M mirrorless camera, check out this EF-EOS M Electronic Auto-Focus Lens Adapter Converter. It allows you to mount any EF or EF-S lens on your EOS M camera body, and retain the auto-focus and image stabilization functions. It also has a detachable tripod mount and a metal bayonet for durability. Don't miss this opportunity to What Is an EF-S Lens? Canon's EF-S lenses have adopted an optimized optical system and mechanical structure to accommodate an APS-C size sensor that is smaller than a 35mm full size sensor. Using a Digital Single-Lens Reflex Camera or Interchangeable-Lens Compact System Camera with an APS-C image sensor, the replacement lens's 35 mm equivalent EF-S – designed specifically for EOS cameras with APS-C cameras. In some cameras, putting an EF-S lens on a full-frame or film EOS camera will damage the camera’s mirror. EF-M – designed for Canon’s M-series compact mirrorless cameras. They cannot be used on other EF-mount cameras. FD – This was Canon’s old manual-focus lens mount If you've just purchased a new Canon camera, chances are you're going to be shopping around for more lens options. So what's the difference between EF and EF The Canon EF-S lens mount is a derivative of the EF lens mount created for some Canon digital single-lens reflex cameras with APS-C sized image sensors. It was released in 2003. Cameras with the EF-S mount are backward compatible with the EF lenses and, as such, have a flange focal distance of 44.0 mm. EOS M200 EF-M 15-45mm IS STM Kit. Fast and Accurate Dual Pixel CMOS AF with Eye Detection AF. High-Image Quality with 24.1 Megapixel CMOS (APS-C) Sensor. 4K Video and 4K Time-lapse Movie along with Vertical video*. 3.0-inch Touch Panel LCD Screen with Tilt Option for 180° for Selfies. Built-in Bluetooth®** and Wi-Fi® Technology*** with Auto The 1.4 is clearly sharper from f2 and beyond. There is no 1.8 from the 1.4 to make a direct comparison, but in all the ones you can the 1.4 is sharper. The CA is slightly lower in the RF 1.8. Also, the 5Dsr which is testing the ef 1.4 is 50mp. The R5 is 45, so the 1.4 looks sharper even on a higher mp sensor. Cons. Very slow autofocus. Bulky. The Canon Mount Adapter EF-EOS M ($199.99 direct) is simple in concept: It makes it possible to use EF-S and EF Canon SLRs lenses on the company's freshman entry HQDq6G.