The Canon EC-1Ds Crop Lines Focusing Screen Set consists of two screens, one delineating a square format and the other a 4x5/8x10 format. The Crop Lines set, as the name suggests, is comprised of screens with the aspect ratio area marked with a thin border. The screens are based on the standard focusing screen for the 1Ds (Ec-CIII), but incorporate a crop line to aid in shooting to a fixed aspect ratio. Both screens are otherwise identical to the standard screen and no adjustment is required for proper ambient or flash metering.
Compatible camera models include EOS-1Ds, & EOS-1Ds Mark II.
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Comments about Canon EC-1Ds Crop Lines Focusing Screen Set:
Not only do these screens allow you to frame for the two formats but they also help with vertical alignment. In fact, when doing panoramic shots I turn the camera 90 degrees and use the lines to assist with straight horizons and aligning images for stitching.
Pros
Cons
Best Uses
Comments about Canon EC-1Ds Crop Lines Focusing Screen Set:
Nice add-on screen helps to "remind" where to crop in anticipation of a 4:5 ratio for 8x10s.
Simple replacement.
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