MAGUS PH2 Phase Сontrast Device

The MAGUS PH2 phase contrast device consists of a phase contrast condenser a set of phase objectives and a centering telescope. The phase contrast device is used to study transparent low-contrast specimens that are not visible in the bright field. Staining kills living cells. The main advantage of the technique is that it may be used to study living unstained organisms in their natural state. The technique is applied in medicine ecology pharmacology agriculture etc.

Phase-contrast condenser

The phase-contrast condenser is installed in place of the brightfield condenser. The rotating condenser includes four annular diaphragms for use with 10x 20x 40x and 100x objectives and a free hole for brightfield observations. The diaphragms in the turret are used depending on the objective being used.

Plan achromatic phase objectives

Phase objectives differ from regular objectives by having a phase ring in the plane of the exit pupil. Plan achromatic phase objectives form an image that has the same focus in the center and at the edges and therefore the distortion is negligible. Chromatic aberrations are corrected for blue and red spherical aberration – for green and the field curvature is corrected for 90% of the field of view diameter. The 10x objective is designed to work with specimens with or without a coverslip. The 20x 40x and 100x objectives are used to observe specimens with a 0.17mm coverslip. The 100x objective supports oil immersion. The objectives are designed for the infinity-corrected tube length. The parfocal distance is 60mm.

Centering telescope

Using a centering telescope the slider annular diaphragms are aligned with the objective phase rings.

Compatibility:

• MAGUS Bio 270T Biological Microscope

Package:

• 5-position phase-contrast condenser
• Infinity plan achromatic phase objective Plan 10x/0.25 Ph ∞/- WD 10.2mm parfocal distance: 60mm
• Infinity plan achromatic phase objective Plan 20x/0.40 Ph ∞/0.17 WD 13.36mm parfocal distance: 60mm
• Infinity plan achromatic phase objective Plan 40x/0.65 Ph ∞/0.17 WD 0.7mm parfocal distance: 60mm
• Infinity plan achromatic phase objective Plan 100x/1.25 oil Ph ∞/0.17 WD 0.22mm parfocal distance: 60mm
• Centering telescope