Standard definition of focusing distance: 10-11.4mm (the best shooting distance is about 10.95 from the first glass of the lens)
Definition of product appearance for focusing distance: 3.6-5mm (the best shooting distance is 4.57 on the outer surface of the product)

Number of lenses: 4 pieces and 4 sets

Magnification: approximately 100x

Lens aperture: F1.8

Lens coating: Multilayer

Lens material: aluminum