20
Dec
Canon 300mm F4 Vs 100 400mm. Canon EF 300mm f40L IS USM Lens. Rounded blades often only found on more expensive lenses improve the appearance of the out-of-focus areas. The first comparison we made was between the 400mm f4 DO IS II and the 300mm f28 IS II at their native focal lengths 400mm and 300mm. It has great optics sharp to the corners wide open and has superb IS.
400mm DO II vs. Canon EF 400mm. EF 70-300mm f4-56L IS USM. 300mm f28 IS II. Canon EF 300mm f28L IS USM Lens. 70-200mm f4 has 2 UD and 1 fluorite element.
Compared to the Tamron 100-400mm f45-63 Di VC USD these lenses are a bit cheaper as well as being noticeably smaller and lighter.
May I ask if The result at 420 would be better than the zoom ignore the extra 20mm on the prime. 300mm f28 IS II. Without the TC f4 and IS makes this the best low light option. Even with a TC attached the EF 300 f4 L has a size advantage over the EF 400mm f56. 4172010 The TC steals a little of the sharpness and slows focusing. Has a metal mount.