Shifting (Pentax has a horizontal shift, Minolta makes[made?] a horizontal & vertical shift lens) changes the angle of lines on a photo. Tilting changes the position of what is in focus. For instance, if you shoot a tall building and want it to look vertical, and not like it's falling away or disappearing into the sky, you use shift to compensate. If however you're shooting a table, and you're at 30 degrees to the table, you want more than just the material in the middle in focus. Tilt changes that and will allow you to change the plane of focus to match the item being shot. (Canon makes[made?] a lens that has horizontal shift and vertical tilt up and down). The use of a tilt could have brought the back left corner of the front into focus.
(Others with more experience in this might be able to add more to the discussion.) Collin At 01:48 PM 3/3/02 -0500, you wrote: >Date: Sun, 3 Mar 2002 13:45:38 -0300 >From: "Eduardo" <[EMAIL PROTECTED]> >Subject: Re: March commentary > > Hi Collin, > >First of all, congratulations on your effort to comment all this month's PUG >submissions. I'm sure everyone, myself included, who decided to share their >images with the rest of us are pleased by your effort and time consuming >post. > >You wrote, about my photo: >" N. P. R. " by Eduardo Jr., Brazil > Pleases my son. > Nice shot. > This is an excellent example of why a tilt lens > is useful. You could change the focal plane > to cover the front of the train and not have > that back left corner soft. Unfortunately > Pentax does not make one. (Most 35mm co's don't.) > > >Would you mind, explaining a little bit more about it? All I know about >shifting or tilting is from some very superficial readings and I had never >even seen one such lens, except for some photos, but I fail to understand >what one of these things could do to improve this photo... >Thanks in advance, > Eduardo. * "Get over it." Dr. Laura --- [This E-mail scanned for viruses by Declude Virus] - 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 .