In TAv exposure mode, you set your f stop and shutter speed. You then specify a range within which the camera can change ISO. You can select the full range (100 to 1600) or a narrow range. The camera then changes ISO sensitivity as the light varies. Your stop and shutter speed remain constant. I find it wonderful when moving from sun to shade or when the sun is moving in and out of the clouds. It's also great indoors when moving from areas near windows to areas farther away, from brightly lit rooms to dimmer rooms, etc. The uses are many, and it works flawlessly in my experience. Paul On Feb 8, 2007, at 5:33 PM, J. C. O'Connell wrote:
> what is the Tav exposure mode( how does it operate)? > jco > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of > John Francis > Sent: Thursday, February 08, 2007 5:07 PM > To: Pentax-Discuss Mail List > Subject: Re: NO FS this Friday? > > > > It's one of those things that I wasn't particularly impressed by > when I > first saw the write-up on the camera. But once you've used it you > realise just how convenient it is. > > On Thu, Feb 08, 2007 at 06:34:47PM +0000, [EMAIL PROTECTED] > wrote: >> You're right, John. I now use TAv 75% of the time. It's a terrific >> feature. Paul >> -------------- Original message ---------------------- >> From: John Francis <[EMAIL PROTECTED]> >>> On Thu, Feb 08, 2007 at 09:19:37AM -0800, Godfrey DiGiorgi wrote: >>>> >>>> But calling someone who wants to take advantage of pattern >>>> evaluative >>>> metering, linked AE and focus point, MTF prioritized exposure >>>> metering, automatic recognition of lens focal length for image >>>> stabilization, improved flare control, better image resolution, > high >>>> speed/accuracy focusing with fine manual control, etc etc, lazy or > >>>> incompetent is truly bullshit. >>> >>> Don't forget TAv mode - an amazingly useful innovation. >>> >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> PDML@pdml.net >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >> >> >> -- >> PDML Pentax-Discuss Mail List >> PDML@pdml.net >> http://pdml.net/mailman/listinfo/pdml_pdml.net > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
