OK, I see what you're getting at - an explanation of DOF as opposed to how the DOF preview actually works on the camera. So, all you do is press the button. Phew - with all the recent threads here recently about needing manuals for lenses and people trying to figure out how one feature or function or another worked, I thought that using the DOF preview might have been more complicated.
Timothy Sherburne wrote: > > Hello all... > > David, welcome to the list. Shel, although the manual does cover this > feature, it's a little cryptic. The theory and application aren't really > covered in the manual, and the text has probably gone through a > Japanese-to-English translation anyway. > > David, I'm sure I'll mangle the explanation, but others will come to your > rescue to straighten things out. > > Basically, your DOF preview button stops the lens aperture down to whatever > aperture will be used when the shutter is released. This is useful when you > need to determine how much depth your image will have when the picture is > taken, and how much light will be striking the film. > > In order to give you the brightest viewfinder image, the camera holds the > lens aperture at its widest until the shutter is released, then > automagically stops the lens down just before the shutter is lifted. The > camera does this at all times, including Program (P) and Shutter Priority > (Tv) modes, and when you select the aperture (Aperture Priority mode, Av) on > the lens. -- Shel Belinkoff mailto:[EMAIL PROTECTED] http://home.earthlink.net/~belinkoff/ - 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 .
