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View Full Version : Diameter of wide angle & telephoto



Simon Hughes
2007 July 17th, 21:44
I just got my WD-H43 and I have the TL-H43 on order. I intend to glue on some kind of step-up ring to go to 77mm. I know the OD of the WD is 74.5mm.

Why do they choose these bizarre sizes... of course, one might also ask why don't they have filter threads, or better yet, why not sell an accessory to make this possible?

Anyway, does anyone know the OD size of the telephoto? (Check the inside of the lens cap.) Something tells me that is may be a smaller OD than the WD as it doesn't need to cover such a wide field of view.