Has rounded aperture blades. Canon RF 16mm f/2.8 STM. Canon RF 24-105mm f/4L IS USM. 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. For reference, I'm currently prime-only with the RF 35mm f/1.8 macro, EF 50mm f/1.8 stm, and Samyang AF 85mm f/1.4. I'll also likely get the 24-240mm lens at some point for lazy and lightweight travel photography (the RAWs are bizarre but I use the camera JPEG 99% of the time anyway). John Riley puts the Canon EF 24-105mm f/4 IS II USM standard zoom through its paces. The Canon EF 24-105mm f/4L IS II USM lens is priced at £1065. Canon RF-S 10-18mm F4.5-6.3 IS STM Lens USM autofocus systems are quicker to focus. And while not silent, they are quieter than DC lenses. USM lenses have the quickest autofocus of any system in the Canon range. They can find focus in a fraction of a second. It’s much quicker than old DC motors and even quicker than STM lenses. RF 24-105mm f/4-7.1 IS STM RF 24-105mm f/4-7.1 IS STM RF 24-105mm f/4L IS USM RF 24-105mm f/4L IS USM Explore the Canon Lens Finder and find the right RF lens 镜头内置无声对焦马达. Canon RF 24-105mm f/4-7.1 IS STM. Canon RF 24-105mm f/4L IS USM. 与没有内置对焦马达，仅靠机身对焦马达的镜头相比，内置对焦马达的镜头，可以更快速、更安静地进行对焦。. Has rounded aperture blades. Canon EF-S 55-250mm F/4-5.6 IS STM. Canon RF 24-240mm f/4-6.3 IS USM. 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. has a silent focus motor built into the lens. Canon EF 24-105mm F/4L IS USM. Canon RF 24-105mm f/4L IS USM. Lenses with built-in focus motor focus faster and more quietly than lenses without a focus motor which rely on the camera's body focus motor. minimum focus distance. 比 RF24-105mm f/4L IS USM 輕了 305 克 雖然目前的 RF 鏡頭系列已有三支優秀鏡頭，涵蓋 24 至 70 毫米焦距範圍( RF24-70mm f/2.8L IS USM 、 RF24-105mm f/4L IS USM 標準變焦鏡頭，以及超級變焦鏡頭 RF24-240mm f/4-6.3 IS USM )，但許多攝影愛好者仍然希望有比這三款鏡頭更小更輕的鏡頭。 Canon RF 24-105mm f/4L IS USM (Black) at Amazon for $1,299; The Canon RF 50mm f/1.8 STM lens is a beauty, ideal for a range of photography styles and it's only $200. hXgP1Nn.