home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!pmafire!mica.inel.gov!ux1!news.byu.edu!eff!sol.ctr.columbia.edu!spool.mu.edu!olivea!decwrl!pa.dec.com!rdg.dec.com!scoayr.enet.dec.com!abelsey
- From: abelsey@scoayr.enet.dec.com (Andy Belsey)
- Newsgroups: rec.photo
- Subject: DX-coded info in EOS
- Message-ID: <1992Nov17.083446@scoayr.enet.dec.com>
- Date: 17 Nov 92 08:35:52 GMT
- Sender: news@rdg.dec.com (Mr News)
- Reply-To: abelsey@scoayr.enet.dec.com (Andy Belsey)
- Organization: Digital Equipment Corporation
- Lines: 30
-
-
- I've seen quoted in a number of publications that the
- Canon EOS 100 (Elan) looks at the DX-coded number of
- exposures on the film canister and will rewind when
- this number is reached. However, if you look at the DX
- contacts in the film chamber you will see that there
- are only 6 : one earth and the 5 bits of DX-coded film
- speed. There are no contacts on the second column of DX
- information (which includes the number of exposures and
- the film exposure latitude in stops) therefore the
- camera cannot see this information. I would maintain
- that the EOS 100 will not wind beyond 36 because this
- is the (usual) maximum number of frames in a 35mm
- canister and not because it reads the DX-coded
- information.
-
- The Canon Megazoom 105 does have contacts for the two
- LSB's of the exposure number but I don't know if it
- uses this information in any way (the instruction
- booklet is very poor in this respect).
-
- Does anybody know of any other EOS having the full
- range of DX contacts (12)?
-
- /andy
- --
- Andy Belsey, VLSI Failure Analysis,
- Digital Equipment, Scotland.
-
- Enet: abelsey@scoayr.enet.dec.com
-