![]() This Matte/Fresnel screen features AF brackets and 5mm spot metering and 12mm center-weighted metering reference circles, with etched horizontal and vertical grid lines. ![]() Others prefer the accuracy of the longer AI focus throw. New Genuine Nikon'Grid Focusing Screen Type-E' For D2XSD2XD2HSD2H 25. The Type E Focusing Screen is an interchangeable focusing screen. The Nikon Type E Focusing Screen is an interchangeable focusing screen compatible with the Nikon D2H and D2Hs cameras. AIS lenses all seem to have a shorter focus throw from close to infinity than AI lenses, and I prefer their speed of focusing. Some cameras can, like the FA, something to do with choosing a higher shutter speed for longer lenses in program mode, I believe. Either of them will beat a mere ground glass for certainty of focusing.The F3 can't tell the difference between an AI and an AIS lens. In some conditions, like faint patterns (as opposed to lines) in very low light, the H2 and a fast lens can beat the finder and split-image patch of, say, a Leica M rangefinder. Your source for SLR Camera Focusing Screens from top brands like Nikon, Canon and Pentax. The D4 and later models have an LCD screen that can display grid lines and crop frames which is incorporated into the viewfinder focusing screen. Depends somewhat on your eyesight, speed of lens, image magnification, contrast of subject, and so on. ![]() I like my H2, too, but the split-image rangefinder and microprism collar on the standard K screen can work well for focusing in the centre. If you want an electronic rangefinder, you'll need a bulky (and only 93% coverage) DX-1, made for the F3AF. ![]()
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