Split-screen focusing for Canon
Rachel Katz is an optical engineer who is selling a split-prism focusing screen for Canon cameras (10D, 20D, Digital Rebel, Digital Rebel XT). It looks like this started as some custom work for an Sigma SD-10 owner, but it’s since blossomed into a business with its own website. So for only a hundred bucks or so, I can get my camera to be much more reliable at manual focusing, with the only downside being that the spot/partial (but not evaluative or center-weighted) metering will be slightly off (pictures will be slightly overexposed if you don’t compensate). I think I can live with that…