Same Hood, Different Lenses

[chris_chen]

I have a hood and it's engraved with several lens models from 35 to 50 of varying aperatures. If the hood blocks stray light from a 50, how effective would it be on a 35? I suspect not much, but better than nothing. I use a Hassy 50 (E67) on my SWC w/no problem.

 

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I read on this forum that some use the same hood for 35 through 135 if the front mount is same E39. I guess these people use the hood more for protection than light blocking (true?).

[bob haight]

Generally you can use a hood from the widest focal length up,

although you get less than optimal shade. If you use a lens system

with the same hood size mounts you can do this. Such as using the

hood for the Nikon 24/2.8 on the 35/2.8 and on the 50/1.4. The Ficus

hood for the LTM goes from 50 to 135.

[jay_.]

Those multi-purpose hoods are made to not vignette on the widest

lens, so their effectiveness decreases with longer lenses. There

isn't such a huge difference in coverage between a 35 and 50, but

stretching those hoods to the 90/135 is, as you say, probably more

protective than preemptive of flare. The pull-out hoods on the newer

lenses are much more convenient, though not without their detractors.

[mark_sampson]

a really effective lenshood for the longer lenses would block the

viewfinder on an M camera. See the bellows hoods (or compendiums) for

view cameras, or the "matte boxes" on motion picture cameras. We just

have to live with it.

[shawee]

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"If the hood blocks stray light from a 50, how effective would it be

on a 35?"

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i believe it will be more effective, since it is deeper. When i was

using a EF35/2, the recommended hood was EW65. i'm quite sure ES65

fits just as well, but it was meant for the discontinued EF50/1.8mk1

so the hood became rare. i asked for a ET65 which was meant for

EF85/1.8 and when i checked the edges through a 1n, i saw no

vignetting at all. It looks Impressive when this mis-match are on

camera but funny by themselves because the hood is longer than the

physical length of the lens. BTW ET65 is shared also by 100/2 and

135/2.8SF.

 

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Now having a 35LuxASPH, i leave the plastic hood and its hood cap at

home and attach a generic 46mm rubber collapsible hood which is much

deeper to offer better shielding. At f2.8 the darkening of corners

sharpens to tell of an inappropriate hood in use. At f1.4 it is soft

to the effect that is Noct-like. Moreover the rubber hood is so much

more affordable to replace than Leica's original hood/cap.

[wp_cheng]

I just bought the hood you mentioned. It seems that no lens cap can

fit. Could somebody please advise.