Skip to content
Contact Us Jewelry School Partners Frequently Asked Questions Submit Tax Exemption
Meiji Microscope Auxiliary & Protective Lenses - Otto Frei

Meiji Microscope Auxiliary & Protective Lenses

Part # 129.409B

Single unit weight: -- lbs / -- kg

$110.00
Availability:
In stock
Availability:
In stock
Availability:
In stock
by Meiji Techno Microscopes
Auxiliary Lenses: .0X Protective Lens

Product Details

Auxiliary and protective lenses are essential accessories for Meiji and OttoSetters microscopes, allowing jewelers, stone setters, and engravers to increase working distance between the lens and the work surface. By threading directly onto the microscope head, auxiliary lenses provide more room for hands and tools while simultaneously expanding the field of view — a critical advantage when manipulating gravers, prongs, or delicate settings. Although auxiliary lenses reduce the top-end magnification, this is rarely a limitation in practice, as nearly all bench work is performed at the lower end of a microscope's magnification range. When higher magnification is needed, simply remove the auxiliary lens.

The .0X Protective Lens (129.409B) installs in the same location as an auxiliary lens but does not alter the microscope's natural focal length or magnification. It is recommended as a protective cover for your optics whenever an auxiliary lens is not in use.

These are genuine Meiji lenses compatible with Meiji and OttoSetters microscopes. Performance data provided applies to Meiji scopes only — use on OttoSetters scopes will produce slightly different but similar results.

Features

  • Increases working distance to give hands and tools more room beneath the microscope head
  • Expands field of view while reducing top-end magnification — ideal for stone setting and engraving
  • Auxiliary lenses are easily removable when higher magnification is required
  • Protective lens preserves natural focal length and magnification while shielding optics
  • Genuine Meiji lenses for superior optical quality
  • Compatible with Meiji and OttoSetters microscopes
  • .5X auxiliary lens is standard on most Meiji EMZ-5 microscope kits purchased from Otto Frei
  • .0X protective lens is standard on most Meiji EMZ-10 microscope kits purchased from Otto Frei

Specifications

Compatibility Meiji and OttoSetters microscopes
Mounting Screw-in (same location for all lens types)
Lens Brand Meiji Techno

Available Options

Part # Type Magnification Working Distance (Meiji Scopes)
129.409B Protective Lens (Meiji MA531) .0X No change to natural focal length
129.412 Auxiliary Lens (Meiji MA517) .5X 150 mm (5.9")
129.413 Auxiliary Lens (Meiji MA526) .75X 97 mm (3.8")

Notes

  • Working distance data applies to Meiji scopes only. Results on OttoSetters scopes will be similar but may vary slightly.
  • It is recommended to use the .0X protective lens to protect optics when an auxiliary lens is not installed.
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.