You might be okay with a deeper hood, but not with a smaller hood. And I wouldn't be surprised if you saw some vignetting at 50mm with the deeper hood. Tulip hods are the best compromise configuration for a rectangular format zoom. Pentax seems to have a good grasp of the design parameters that make for a good tulip hood. I doubt that a substitute would be better. Paul On Sep 21, 2006, at 11:18 PM, Shel Belinkoff wrote:
> I'd have to get used to all the things to think about with variable > aperture. Seems that in order to get some semblance of stability, > you've > got to shoot at smaller aps ... > > Why not a smaller hood? The hood I used was designed for a 200mm > hood? It > protects better than the original based on preliminary tests. The > hood > that comes with the lens is designed to fit over the lens, and does > not > offer the best protection. Had some probs with a similar hood on the > 16-45. I'm going to try for an even tighter, perhaps deeper, hood > for the > 50-200. > > > Shel > > > >> [Original Message] >> From: Paul Stenquist > >> The variable aperture isn't too much of a problem if you shoot with >> aperture priority and set it at 5.6 or smaller. Or shoot with shutter >> priority and set it at a speed where you can be sure you won't run >> out of aperture. It's not ideal. I'm looking forward to the new DA* >> 60-200, but it works. And more importantly, the optics are quite >> good. The hood seems to do its job. It's size doesn't bother me. I >> certainly wouldn't want a smaller hood for a lens with 200 mm reach. >> Paul >> On Sep 21, 2006, at 11:02 PM, Shel Belinkoff wrote: >> >>> OPh, I just thought of something else I didn't like - actually, two >>> things. >>> That crappy plastic hood is too big. I brought along a nice, >>> smaller >>> screw-in hood that's considerably "tighter" and which did a great >>> job on >>> the 50-200. The variable aperture is annoying, and I guess I'd >>> have to >>> learn how to use a lens with that configuration. I don't know >>> enough about >>> how the exposure, aperture, and shutter speed are adjusted as the >>> lens >>> moves through the focal range. >>> >>> Shel >>> >>> >>> >>>> [Original Message] >>>> From: Shel Belinkoff >>> >>>> I wish I had a lot of great news to report, but I was only able to >>>> use the >>>> lens for a short while. The owner of the lens had to head home >>>> before I >>>> could really give it a workout. >>> >>> >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
