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.
Canon EF 24-105mm F/4L IS USM. vs. 9 Canon RF 24-50mm f/4.5-6.3 IS STM. 10 Canon RF 135mm f/1.8L IS USM. 1 Tamron 17-50mm f/4 Di III VXD. 2 Nikon Nikkor Z 600mm f
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.
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canon rf 24 105mm f 4l is usm vs stm