A big advantage of some of the clamp-on hoods is that they can be
reversed for more compact carrying/storage. This is true of both models
of the hood that fits the 50mm standard lenses, 35/2.8 and 35-70/3.5-4.5
and for the hood for the 35-70/3.6. It doesn't work for the 21/3.5 hood,
but wouldn't make much difference with such a wide, shallow hood anyway.
The screw-in hoods are probably more rugged and reliable under rough
conditions. The little thumb screw on the clamp-on ones is not
particularly robust and is vulnerable, particularly when reversed, to
bending or breaking if struck.
Both metal and rubber screw-in hoods have metal threads.
Moose
derek fong wrote:
Just wondering... is there any advantage to either type of hood and
what do list members prefer? I only have one hood (a rubber screw-in
for my 28/2.8) and am fairly happy with it, but I suppose a clamp-on
would be faster to remove. I would also guess that a clamp-on reduces
the risk of ruining a lens's threads (although I'm not sure that's
really applicable to a rubber screw-in hood anyway).
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