Timothy Sherburne wrote: > > Does anyone have experience with Vivitar's K-mount auto extension tube > set? What's the quality like? > > I'd prefer Pentax, but the price of Vivitar's set is about 1/3 that of > a new Pentax set.
I've had both and I can assure you that there's no functional or performance difference. The Pentax ones were cosmetically a little nicer but only enough to be worth a few dollars extra, not 3 times the price. I suppose the Pentax ones might be higher spec. as far as parallelism of the front and rear mounts is concerned but I think you'd have to be doing extremely high magnification of perfectly flat subjects to notice any difference. If there is any. Definitely go for the Vivitar: Put aside the money you save for film, processing or a nice new lens. -- Mark Roberts www.robertstech.com - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
