The PHD500 uses an integrated phase contrast system (IPC) rather than separate slider rings, so switching between brightfield and phase is a single turret rotation. The long working distance condenser leaves 72 mm clearance — enough for culture flasks, multi-layer cell factories and microplates.
The body is compact enough for a bench inside a laminar flow cabinet, with a 90–230 V wide-range supply and automatic slide detection.
| Optical system | Infinity, two-direction chromatic aberration correction, 45 mm parfocal distance |
|---|---|
| Body | Antibacterial aluminium alloy, 90–230 V, automatic slide recognition |
| Viewing head | 45° trinocular, 360° rotation, interpupillary 48–75 mm |
| Eyepieces | SWH10×/23 mm high-eyepoint, diopter −2 to +8 |
| Objectives | 4×, 10×, 20×, 40× plan phase contrast (standard) |
| Focusing | Total travel 9 mm, coarse 36.8 mm/turn, fine 0.2 mm/graduation, 0.002 mm precision |
| Nosepiece | 5-position coded (high configuration), standard RMS thread |
| Stage | 200 × 252 mm, X travel 110 mm, Y travel 74 mm, extension plate |
| Condenser | NA 0.3, working distance 72 mm, 190 mm clearance when removed |
| Illumination | 10 W 4500 K LED, equivalent to 100 W halogen, ≥ 30,000 h |
| Camera port | 0.5× standard synchronous C-mount |
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