Long ago I bought a Vivitar metal lens hood for my M28/2.8 lens. 49mm screw in threads and probably 6-7 inch wide front...doesn't vignette on full frame film cameras. Otherwise you'll be in for a long search. Regards, Bob S.
On Wed, May 16, 2012 at 4:19 PM, John Sessoms <[email protected]> wrote: > From: Kenton Brede > > >> I've got a screw in lens hood for my M50mm and M28mm lenses that works >> fine with my K-5, but when I tried it with my K1000, I get vignetting. >> I found a hood for the 50mm on B&H but not for the 28mm. From what I >> gather the official hood is a PH-S49 for the 28mm. Can't find that >> anywhere. I found this snippet on Pentax Users, "For your M-28mm and >> M-50mm, a 49-37mm and a 37-30.5mm step-down adapter ring will do >> nicely." I've never worked with step-down rings but it doesn't make >> sense to me to go from 49mm to 30.5mm. It seems like the lens would >> vignette with that configuration. >> >> Anyone have a bright idea or know of a source for manual lens hoods? >> I've tried ebay and KEH and google of course. >> Thanks, > > > That doesn't sound right. If it's already vignetting, a smaller diameter > hood is just going to make the vignetting worse. > > I had a problem with my A 24/2.8 vignetting with polarizing filters on K1000 > & LX, even the ultra-thin ones and I fixed it by getting a 52mm to 58mm > step-UP ring & using a larger diameter filter. > > If your getting vignetting, you need a step-UP ring, like a 49mm to 52mm, > and then you could mount a screw in lens hood like this one (or something > similar you can purchase locally): > > http://www.bhphotovideo.com/c/product/649756-REG/Bower_HT52_HT52_52mm_Tulip_Lens.html#Overview > > Even though it's a "tulip" hood, the hood part rotates around the screw-in > base so it will work on lenses where the front element rotates when you > focus. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
