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The Seiler Dual Iris Diaphragm (#Z-DID) controls the aperture for greater depth of field. It is the optimum solution for your digital photography needs. It is intended for use with the Alpha Air 3, Alpha Air 6, and Evolution ZOOM dental/ENT microscopes.
The versatile Iris Diaphragm is also compatible with previous models, such as the Evolution xR6 and IQ dental/ENT microscopes.