That makes sense, which is a bit scary considering how tired I am tonite. ;-)
Thanks Don > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of > Paul Stenquist > Sent: Wednesday, June 28, 2006 7:53 PM > To: Pentax-Discuss Mail List > Subject: Re: Seen on eBay > > > Wide open or not, the camera is still metering through the glass of the > lens. The variation in lenses is largely a matter of glass and internal > light loss. Now, if you REALLY want to be totally accurate, you can > test a lens at each f-stop to see if they progression is correct, but > in most cases, the lens will meter the same throughout the range as it > does wide open. > Paul > On Jun 28, 2006, at 8:34 PM, Don Sanderson wrote: > > > I've never heard this. > > How would a TTL meter handle this when metering is done wide open? > > It would have no idea that one lens needed to be stopped down > > just a bit more/less than another.? > > > > Don > > > >> -----Original Message----- > >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of > >> Paul Stenquist > >> Sent: Wednesday, June 28, 2006 7:15 PM > >> To: Pentax-Discuss Mail List > >> Subject: Re: Seen on eBay > >> > >> > >> If you're not using a through the lens meter, you have to calibrate > >> your lenses for exposure. I frequently used a handheld incident meter > >> when shooting transparency film with my 6x7. But I had an exposure > >> compensation factor for each lens. For example, I think my 300/4 > >> required 1/2 a stop of extra exposure, while my 105/2.4 was right on. > >> Paul > >> On Jun 28, 2006, at 7:10 PM, Don Sanderson wrote: > >> > >>> Uh guys, maybe I'm missing something but unless someome is lying > >>> about their product isn't f/4.0 always supposed to be f/4.0?? > >>> It'd pretty much leave slide shooters who use a manual meter SOL > >>> if it wasn't, wouldn't it? > >>> > >>> Don > >>> > >>>> -----Original Message----- > >>>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf > >>>> Of > >>>> Joseph Tainter > >>>> Sent: Tuesday, June 27, 2006 7:38 PM > >>>> To: [email protected] > >>>> Subject: Seen on eBay > >>>> > >>>> > >>>> "A prime 2.8 lens is actually faster than a 2.8 zoom because of the > >>>> increased contrast which you'll find remarkable in comparison to > >>>> your > >>>> zoom lens." > >>>> > >>>> Got that? > >>>> > >>>> Joe > >>>> > >>>> -- > >>>> 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 > > > > > -- > 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
