On 3 Nov 2003 at 18:57, Paul Repacholi wrote:
>
> There is little difference, with digital you still use ALL of
> the front element so a narrower hood will vignet the image. It
> will not be as bad as it would on 35mm full frame though.
>
> Better to use a deeper hood for the view angle.
Deeper or more narrow (at the same length) is equal in this context;
it's the angle of view that is important, and with a less than full-
frame size chip you simply use a smaller angle of view....you don't
use the full front element anymore....just as you don't with a
teleconverter btw (that's also why using a TC on one of the TS-E
tilt/shift lenses hardly causes any degradation, not even with the
24mm....it's the edges that are the hardest to control in lens
design, and those are ignored with a TC....:))
--
Bye,
Willem-Jan Markerink
The desire to understand
is sometimes far less intelligent than
the inability to understand
<[EMAIL PROTECTED]>
[note: 'a-one' & 'en-el'!]
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