home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: rec.photo
- Path: sparky!uunet!wupost!darwin.sura.net!ra!ra.nrl.navy.mil!tse
- From: tse@ra.nrl.navy.mil (Anthony Tse)
- Subject: Re: Canon 10s Vs Nikon N90, Which one?
- Message-ID: <BztsnC.3L7@ra.nrl.navy.mil>
- Sender: usenet@ra.nrl.navy.mil
- Organization: Naval Research Lab, Washington, DC
- References: <1992Dec24.205338.11007@jarvis.csri.toronto.edu> <BzssK3.Kp6@ra.nrl.navy.mil> <1992Dec25.004328.19626@jarvis.csri.toronto.edu>
- Date: Fri, 25 Dec 1992 17:30:47 GMT
- Lines: 27
-
- In article <1992Dec25.004328.19626@jarvis.csri.toronto.edu> acs@csri.toronto.edu (Alvin Chia-Hua Shih) writes:
- >In <BzssK3.Kp6@ra.nrl.navy.mil> tse@ra.nrl.navy.mil (Anthony Tse) writes:
- >
- >>In article <1992Dec24.205338.11007@jarvis.csri.toronto.edu> acs@csri.toronto.edu (Alvin Chia-Hua Shih) writes:
- >>>In <1992Dec23.194028.18483@jarvis.csri.toronto.edu> I wrote:
- >Of *course* you put the feature of interest where the split is, and
- >then recompose. That's what you do with the AF sensor too. The most
- >common area of the face suggested for AFing is the eye, since it has
- >both light and dark regions. However, being a small region, may AFers
- >like to tweak the focus manually (especially easy with USM lenses)
- >since AF may decide that the person's glasses are more interesting than
- >the person's eye.
-
- You and the other guy who posted something about needing focusing
- aid because Nikon user can use MF lens obviousely never owned a
- fast lens and used it for a portrait type tight head shot with the lens
- wide open. The split screen doesn't work when you try to use it one
- someone's eye. With a horizontal split screen, you need somthing
- vertical to split, there isn't anything vertical in a person's eyes.
- If you are used to using zoom, you don't have to worry about things
- like critical focuse because the pin hole zoom will give you plenty
- of DOF so if your focusing is close, that's plenty good enough. With
- a 85mm wide open at 1.2 and up close, split screen and microprism
- just doesn't give you an accurate enough focus. On the other hand,
- maybe it's just me and my eyeballs.
-
- -Anthony
-