Across the entire loupe industry, no major brand publishes MTF, spot, ray-fan, chromatic, or resolution figures. Most won’t even publish field of view or price. We think clinicians buying a career-long instrument deserve proof. So here it is.
- MTF (contrast vs. resolution): lp/mm at 50% contrast.
- Resolution (USAF 1951 target): the smallest line-pairs our optics resolve.
- Spot diagram & ray-fan: blur-spot size and aberration control across the field.
- Chromatic correction: achromatic design, minimal colour fringing.
- Field & depth of field: measured per magnification (working distance fully adjustable).
Measured from optical design (Zemax) and bench testing of production samples. Full methodology available on request.