> Does anyone know if there was a square metal clamp type hood (like the one for > the Takumar 1:3.5 28mm) made to suite 35/28/24mm lenses that would fit on a > 54mm OD lens barrel (52mm filter ring)?
I don't know of one, unless there was one for the 30/2.9 which was one of the few 52mm filter-mount lenses. If a round hood will do you could look at used Nikon lens hoods. Most of their lenses took 52mm filters and they made nice metal round hoods. DJE
