Damage to Canon EF 50 mm f/1.4 USM
Re: Damage to Canon EF 50 mm f/1.4 USM
Sittatunga wrote:
bridge77 wrote:
...
it would seem that any lens shock would affect moving parts regardless of the lens?
the 1.8 lens seems to have it's own stories of the thing failing after much use, the new EF STM lens has a metal lens mount to the camera body, perhaps an improvement?
The metal bayonet feels and looks nicer, but it's the other end of the lens that breaks.
The hood clips into a groove in the main body of the lens, outside the lens cell that moves for focussing. It is plastic, not the same plastic as a crash helmet or a riot shield, but still one that absorbs a lot of impact energy. The bayonet lens hood stops any impact directly onto the focussing mechanism, while a rubber hood screwed into the filter thread just reduces minor impacts on the focussing mechanism.
One other advantage to an OEM-type hood is that it provides slightly more rain deflection than a rubber hood screwed into the lens threads. The rubber hood moves with the lens, exposing the lens barrel to rain. Since the OEM-style hood fits to the lens body it provides a bit of shelter to the lens barrel when it is extended in shooting position. This does not make the lens any more weather resistant, but may keep a few drops off the lens barrel if one is caught out in the rain without a rain cover for the camera.
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