WIDE-FIELD 15× 21MM OPTICAL FIELD TRIPLET LOUPE GEO Premier GEO Premier Wide-Field Triplet Hand Lens 15× 21mm — view 1

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GEO PREMIER

GEO Premier Wide-Field Triplet Hand Lens 15× 21mm

WIDE-FIELD 15× 21MM OPTICAL FIELD TRIPLET LOUPE

Balanced 15× magnification optical triplet loupe featuring an extra-large 21mm aperture, striking the ideal compromise between expansive field of view and high magnification for petrographic texture logging.

Magnification15× optical magnification

Aperture Diameter21.0 mm wide optical aperture

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View in the AFFORDA catalogue

01 / FIELD CAPABILITIES

Built for the task.

Large 21mm objective lens diameter admits significantly more natural ambient light for clearer rock sample examination
15x magnification provides the perfect sweet spot for resolving mineral grains without excessive eye strain
Aplanatic design corrects spherical aberrations, keeping flat rock slabs perfectly in focus from center to edge
Solid brass swing housing ensures lifelong mechanical durability across extreme field weather conditions
Supplied in a heavy-duty leather field pouch to prevent lens scratches inside tool vests and rucksacks

02 / TECHNICAL DETAILS

Precision, specified.

Magnification: 15× optical magnification
Aperture Diameter: 21.0 mm wide optical aperture
Optical Design: 3-layer bonded achromatic / aplanatic glass triplet
Field of View: 16 mm linear field diameter at focal plane
Eye Relief: 15 mm comfortable eye distance
Frame Build: Precision machined brass with chrome satin plating
Pivot Type: Reinforced tension screw with friction dampening
Storage Case: Genuine cowhide leather case with belt loop
Weight: 46 g
Chemical Durability: Unaffected by dilute hydrochloric acid field testing drops