Objective MAGUS SF20 20x/0.40 Plan Pol ∞/0.17

MAGUS SF20 20x/0.40 Plan Pol ∞/0.17 Objective Lens
Infinity-corrected plan achromatic objective. Magnification: 20x. Aperture: 0.40

Polarizing objective for studying transparent and translucent samples with polarized light. Special distortion- and stress-free lenses do not affect study results.

Objective with 20x magnification and a maximum resolution of 0.69 µm. It is designed for a microscope with an infinity-corrected optical system. The parfocal distance is 45 mm. A 0.17 mm thick coverslip is used for observations.

The plan achromatic objective eliminates spherical distortion in green and chromatic distortion in red and blue. It flattens field curvature up to 90% of the diameter. The objective can be conveniently combined with a digital camera and wide-field eyepieces. For example, the field of view with a 10x/22 mm eyepiece will be 1.1 mm in diameter. The image is equally sharp in the center and at the edges.

The objective is optimally combined with eyepieces with a magnification of 10x to 20x and forms a useful microscope magnification of 200x to 400x. At less than 200x magnification, it will not be possible to see small details, and at more than 400x magnification, no new information will be provided.

Compatibility:
MAGUS Pol 800 polarizing microscope

Specifications:
Lens material: optical glass
Objective class by aberration correction degree: plan achromatic
Tube length: infinity-corrected (∞)
Contrast technique: polarized light
Magnification, x: 20
Aperture: 0.40
Working distance, mm: 8.8
Parfocal distance, mm: 45
Coverslip thickness, mm: 0.17
Spring-loaded mechanism: −
Immersion: −
Body material: copper