On Dec 29, 2010, at 17:52, Eric Weir wrote: > > On Dec 29, 2010, at 6:26 PM, J.C. O'Connell wrote: > >> that's correct, I bought it off ebay from china vendor for $20. >> Pentax doesn't make one because it (RF) slightly throws off >> the stop down metering at small apertures. It's a trade >> off I don't care about. > > Thanks. After posting my previous response I re-Googled and did come up with > a Chines manufacturer. They have one for the K10D and DS. at $30. I checked > eBay and came up with this > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180326554642&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en > which is even better, includes tweezers, etc. The instructions couldn't be > clearer than those at this link. >
I have a split-screen KatzEye which I'd originally ordered for my DS, then used in my K10D for a while. I removed it from the K10D when I got the K7. If you're interested in a deal on "the real thing" just let me know. > > But all this brings up another question: What is the difference between "open > aperture" and "stopped down" metering? Would that be metering before and > after setting exposure, assuming you're not shooting wide open? And what are > the pros and cons? > With "Open Aperture" metering, the lens stays wide open even as you adjust the f-stop settings, and the camera is told what the lens is going to stop down to and adjusts accordingly. The aperture is only actually stopped down when you make the exposure. Your viewfinder stays bright and it's easy to focus. "Stopped down" metering means that when you twist the f-stop ring, the lens stops down RIGHT NOW. The camera makes its exposure decisions at all times based on the actual amount of light coming through the lens. Small aperture=dark viewfinder=trickier focus. Especially in dim-light conditions. -Charles -- Charles Robinson - [email protected] Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
