>Subject: EOS Re: Elan 7 low light AF > >> >Indeed, I can see some circle-patents on the mirror where the AF points >are >> >supposed to be. >> >> If you see the sensor positions in the mirror, perhaps you are seeing the >> viewfinder that is above the mirror. > >You mean I saw the boxes indicating AF points reflected from the mirror >instead? >Definitely not! Those were circles, but I'll check again tonight to make >sure those weren't the array circles aligned at the bottom of the mirror.
Ok, as I don't own an Elan7 I cannot check that. Perhaps the entrance to the sensors in the floor of the mirror box if visible trought the semi-mirror and secondary mirror . >> themselves are in the "floor" of the mirror box. You can see the light >> entrance to the sensors if you look ,from the rear, opening the back, >> trough the shutter opening in bulb. > >Now, about seeing thru the shutter opening from the back... I've only >managed to get the Elan7 to do that in Self-Timer delay + 30" Tv exposure >mode. Bulb doesn't seem to work as I initially expected. Any tricks? It could be a protection for not puting the finger trough the shutter opening and breaking the curtains when closing. Some cameras feature a switch, small and difficult to find, that is closed when you close the film door. Perhaps you need to push that switch to make the camera behave as it should. In my EOS 500n (Rebel G), I just remove the lens, open the film door, and push the shutter release in bulb. >> Don't think so. The EOS-3 AF sensor is CMOS too. > >But EOS-3 came out in Nov 1998, before the Elan7. > >> OTOH, my EOS 500n don't feature the Elan7 problem with my M42 f/1.4 lens >> stopped down, but overexposes open wide. >> I think that the problem has is related to the half-reflectance mirror of >> the Elan7. > >Did changing from one metering mode to the other help? Just a wild guess. I think that EOS 500n (Rebel G) mettering problems with M42 lenese over f/2.8 is due to some kind of mirror vigneting. But I don't worry as at f/2.8 or more closed (higher f/ number) the problem is gone. The Elan7 mettering problem with non EF lenses is worse. It happens at all apertures. No mettering mode change solves it. I think that is something also related to the mirror, but don't know for sure. >Thanks Vicente. > >BlueSky Best regards Vicente * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
