Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site cvl.UUCP Path: utzoo!linus!philabs!seismo!rlgvax!cvl!Babu From: Babu@cvl.UUCP (Babu) Newsgroups: net.rec.photo Subject: Canon and Nikon Cameras Message-ID: <680@cvl.UUCP> Date: Sat, 15-Oct-83 03:01:44 EDT Article-I.D.: cvl.680 Posted: Sat Oct 15 03:01:44 1983 Date-Received: Sun, 16-Oct-83 11:15:32 EDT Sender: sb@cvl.UUCP Organization: U. of Md. Computer Vision Lab Lines: 58 n what is the use of spot metering ? When do you use it and with what lenses ? Incidentally , I am surprised to find that the Canon A-1 doesn't allow user interchangeable focussing screens but the earlier model AE-1 Program does ? Can anyone guess why this is so ? Isn't this a drawback ?(The only answer that I can think of is that changing focussing screens is a delicate operation which could potentially damage your camera if you are not careful and therefore better left alone.But Pros will not think like that.) I also want to know if there are any real uses for shutter speeds in excess of 1 msec.Some cameras like the Pentax have shutter speeds as high as 1/4000 sec. I am looking forward to receiving your replies. This is the first time I am sending mail via Usenet.If this Group is not meant for this sort of questions please forgive me. Babu Srinivasan U of Maryland