Here is a 20x  wide field hand lens that looks like a normal hand lens but has a built in LED illumination system to make viewing specimens in low light...

This cloth lanyard features a breakaway hinged snap for user safety in case the lanyard gets stuck on a branch.  The 1/2" wide cloth lanyard is comfortable to wear, and...

Here is a wide field 10x hand lens that looks like a normal hand lens but has a built in LED illumination system to make viewing specimens in low light...

An exceptionally wide field of view is provided by this 13/16" (21mm) diameter lens. Magnification is 10X. Fully corrected for spherical and chromatic errors through the three-glass-lens optical system. Focal...

This high quality magnifier features a  9/16" (15mm) lens diameter with 10X magnification. Fully corrected for spherical and chromatic errors through a three glass lens optical system.  Chrome plated frame...

Superior quality, wide field 20X hand lens. Fully corrected for spherical and chromatic errors through a three glass lens optical system. Chrome plated frame with leather case. Made in Japan....

Hastings Triplet hand lenses are corrected to provide a high quality image. The lens consists of three separate lenses "sandwiched" together to eliminate optical errors. Durable lens mount and swing-away...

Choosing a Hand Lens. Four factors effect the performance of hand lenses: (1) magnification power, (2) width of field, (3) depth of field and (4) focal length. For purposes here,...

hoosing a Hand Lens. Four factors effect the performance of hand lenses: (1) magnification power, (2) width of field, (3) depth of field and (4) focal length. For purposes here,...

Choosing a Hand Lens. Four factors effect the performance of hand lenses: (1) magnification power, (2) width of field, (3) depth of field and (4) focal length. For purposes here,...

This 10X hand lens offers a 21mm diameter lens for an exceptionally wide field of view. Fully corrected for spherical and chromatic errors through the three glass lens optic system....

At 20.5mm lens diameter, this is the widest 20x Triplet style hand lens we can find.  The hexagonal shape offers flat surfaces with which to hold it, as well as...

A very unusual triplet hand lens providing three separate magnifications.  The triangular shaped body holds 10x, 15x, and 20x lenses that can be swung into the body for storage and...

Soft, yet strong garment leather for carrying your hand lens or other pocket items. Size: 42" long by 3/8" wide, with slide length adjustment. Shipping weight 6 ounces.

Soft, yet strong garment leather for carrying your hand lens or other pocket items. Size: 42" long by 3/8" wide, with slide length adjustment. With two attachment rings. Shipping weight...

The scribe comes with a tungsten carbide tip used in the field for hardness testing of rock samples and a magnet at the end for testing the magnetic properties of mineral...

Designed in the shape of a pencil, with pocket clip, and swivel point for easy handling, the pencil magnet is used in the field to detect magnetic minerals in rocks.

This hardness testing kit comprises of the following: 8x   Points of durable metals / alloys of Mohs' hardness 2 - 9 1x   Streak plate 1x   Glass Hardness Plate (5.5) 1x   Hardness Plate (3.5)...