I just timed it at 16 Green Buttons in 10 seconds, so .625 secomds per push. The only way around it is to leave the lens wide open and use AV mode, the camera then meters automagically. OR use an M42 lens stopped down in AV mode, same thing. One other consideration, not mentioned here I don't believe: Wireless flash _won't work_ with non-A lenses, this is a bigger factor for me sometimes then the Green Button.
Don > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > Sent: Monday, September 19, 2005 6:39 AM > To: [email protected] > Subject: > > > Hi, > > I've mainly browsed the list and asked some questions from time > to time. However, > this interest me. I'm thinking of getting a Pentax DSLR, having > mainly shot > Pentax 35mm and Hassie mf. > > 1. One thing I've wondered about is how fast in real life is the > use of the > Green button?. Once activated to shot being taken - is it a few tenths of > second prolongation, or is it a second..? > > 2. I can understand some of JCO's queries here. I e.g. sometimes > shot hummingbirds > - small fast moving creature and you move the lens while shooting > of a rapid > series of shots (LX and its of the film metering is really good) > and while > you do that the light sometimes changes so that expousre must be metered > at or close to real time of shooting. I guess that this might be > a problem > if you need to press the Green button on every change of the light or is > there a way round this? I'd appreaciated some pondering on these > question. > If this is to slow then I'm thinking of keeping my "fast" 35 mm > for certain > situations and digital for other type o slower photography. > > Cheers, > > Ronald Arvidsson > > >RE: Pentax K 2.5/200mm > > > >Kostas Kavoussanakis > >Sun, 18 Sep 2005 02:35:04 -0700 > > > >>On Sun, 18 Sep 2005, J. C. O'Connell wrote: > >> > >>I KNOW the difference between open apeture metering and what it > means in > low light. > >> > > > >Have you understood that the lens only stops down *momentarily* > to meter and > again *momentarily* to take the picture, and that at all >other times it > is open? > > > > > >Just wondering, > > > >Kostas >
