Title: Unsharp at edges
Product review: Unfortunately there is a problem with the Super Coolscan 4000 in that seems unable to produce an image that is sharp to the edges from film placed in a glassless slide mount (standard paper, plastic, etc.) This appears to be a lack of depth-of-field within the optical system. Using the selective focus feature doesn't help as some part of the image will be always out of focus. The Coolscan may produce a 4000 dpi scan, but it will not be sharp center-to-edge unless the film is absolutely flat -rarely the case. This problem offsets any advantage of using high-quality optics on your camera. This is a situation where the (excellent)specifications do not give the true indication of the results.
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