Close-up and Macro Photography for EntomologistsEnlarging LensesEnlarging LensesEnlarging lenses are designed to work with a greater distance in front of them than behind, so they may give better results at magnifications greater than life size if they are mounted on a reversing ring. Reversing the lens exposes the rear element that is protected when the lens is mounted normally. You can provide it with some protection by adding a short extension tube to act as a makeshift lens hood; an old manual tube will do. You can also buy special adapters that allow a filter or a lens hood to be attached to the rear of a lens. Schneider make helical focusing mounts, extension tubes and camera adapters for some of their range of enlarging lenses. Details can be found at Macro System Accessorie, Jos. Schneider Optische Werke.
Close-up and Macro Photography for Entomologists
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