Bill,
How big is the front of the 24 ALPA lens? The reason that I ask is that Hama
of Germany makes a series of rectangular hoods which are all good even down to
a 24mm lens and are advertised as such.
I've got all three sizes, 49mm, 52mm, and 55mm and have used them on a 20 mm
Nikkor with just MINOR vignetting, but absolutely none on the 24's. B7H
sometimes has them for about $16.95 + S&H.
Art Tafil