This is a new one to me. I never heard of the different modes affecting AF (with the exception of the clever hyperfocal mode on Sigma or minolta or whichever camera it was). I am sure they are always referred to a exposure modes. Aperture Priority, Shutter Priority, Manual, p&S mode, or these Portait, landscape, nighttime or whatever modes. Portrait, landscape, nighttime and P&S modes do not allow you to select aperture or shutter and have no effect on how AF works to my knowledge, they affect the exposure only. Portrait uses small DOF, landscape uses as much DOF as possible (possibly restricted by what it thinks gives a fast enough shutter for the lens), and nighttime uses as large an aperture as possible. I am not sure what 'twitch focus' is!
> -----Original Message----- > From: Patrick White [mailto:[EMAIL PROTECTED]] > Sent: 21 August 2002 17:10 > To: [EMAIL PROTECTED] > Subject: Re: Pentax and the joyful absence of exposure modes > > > I think you may be confusing metering modes with > autofocus modes. Pentax, > and most cameras I've seen, have some of the follwing > metering modes: spot, > center weighted, whole frame, or multisegment metering. > These affect the > exposure of the film. > The rest of the settings on the dial mostly affect how > the autofocus works, > and therefore how the image appears on the film. Common ones > I've seen are: > portrait (focus smack on subject), closeup (twitch focus to > catch more of > foreground in DOF), landscape (twitch focus to catch more of > background in > DOF), or ??? (set focus and aperture to catch last two focus > distances in the > DOF -- don't know what they call it but my wife's camera has it). > Interestingly, on the Pz-1p, Pentax has some even more > obscure ones hidden, > like the one that attempts to maximize the sharpness of the image by > selecting the optimum aperture for the lens. > > Personally, I agree with Pieter, a lack of bewildering > picture taking modes > is a blessing. Oddly though, I want all the metering modes, > but portrait AF > mode is sufficient. > > later, > patbob ([EMAIL PROTECTED]) > - > 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 . - 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 .
