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This magnifier has an aspheric lens and a stable half-circle base. The lightweight, plastic body moves easily across a fingerprint card. It's hard acrylic lens provides long life and distortion-free magnification. The significant advantage of an aspheric lens is the capability to use them to see gray tones better and, for looking at latent prints, this is very important. If you teach a fingerprint class, this is a great, inexpensive magnifier for your students.
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