IMHO the modern 300 f/2,8 lenses are completely different beasts (and not necessarily best suitable for astro imaging as inquired by Jerry Lodriguss tests on Canon EF 300 f/2.8 L). The first-series EF 300 f/2.8 (and the immediate predecessor FD 300 f/2.8 L) can be very good for astro providing the internal focus floating group do not develop
Combine a 400mm full-frame prime lens with a fast maximum aperture of f/2.8 and there are two things you can be assured of – size and weight. The mighty Canon EF 400mm f/2.8L IS II USM. measures
Neither the original 300/2.8 L or the 300/2.8 L IS have been supported by Canon for the very highest fps shooting on RF bodies. Generally only IS II and later Canon lenses are given full compatibility with the RF series. From what I have gathered they get the second tier fps which is 12 to 20 fps, depending on the camera.
A worthy successor to the popular Canon EF 300mm f/2.8 IS, the all new Canon EF 300mm f/2.8 IS II USM super telephoto lens is lightweight, weighing approximately 8% less than its predecessor, yet offers faster operation, improved image stabilization and superior optics.
With full-time manual focus, you can move the focus ring whilst it is in AF (autofocus) mode. This means that you can make manual adjustments once the AF has finished, without changing to manual mode. has a silent focus motor built into the lens. Canon EF 100-400mm F/4.5-5.6L IS USM. Canon EF 400mm F/4 DO IS II USM.
After more than a decade of its presence on the market it was substituted by the EF 300 mm f/2.8 L IS II USM model. Although in the meantime stabilization was added, the USM motor and the optical construction improved, every version of this lens was physically lighter than the previous one. Because of that the difference in weight between the
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canon ef 300mm f 2.8 l is ii usm review
