N.A. 0.25, F.L. 20.0mm, W.D. 7.6mm
The MA821 is a TC LWD Planachromat 10x objective that is compatible with the TC-5000 and TC-5000C series. It has a parfocal distance of 45mm, a din standard 0.7965" (20.1mm) diameter threads, 36 TPI and 55° Whitworth.
Product Specifications
| Type | TC Plan Achromat LWD (Biological, Inverted) | 
| Optical | Infinity Corrected ∞ Tube Lens | 
| Tube Length | F=200mm | 
| Magnification | 10x | 
| Numerical Aperture (N.A.) | 0.25 | 
| Focal Length (F.L.) | 20.0mm | 
| Working Distance (W.D.) | 7.6mm | 
| Parfocal Distance | 45mm | 
| Cover Slip Correction | 1.0mm | 
| Diameter Threads | 0.7965" (20.1mm) DIN Standard | 
| TPI | 36 | 
| Whitworth | 55° | 
| Diameter (mm) | 27.79mm | 
| Length (mm) | -mm | 
| Weight (g) | 80g | 
| Oil | ✘ | 
| IS9001 | ✔ | 
- Weight:
 - 1.00 LBS
 - Width:
 - 3.00 (in)
 - Height:
 - 2.00 (in)
 - Depth:
 - 2.00 (in)
 
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