HEINE C2.3K|340 headband loupe in case
Specifications C2.3K | 340 mm
- Magnification 2.3 x
- Working distance 340 mm (13 inches)
- Field of view Ø 110 mm
- Depth of field 120 mm
- Weight 160g
| Magnification |
Working distance | Field of view | Depth of field |
| 3.5x | 420 mm (16") | 65 mm (2.5") | 60 mm (2.4") |
| 4x | 340 mm (13") | 50 mm (2") | 40 mm (1.5") |
| 6x | 340 mm (13") | 40 mm (1.5") | 30 mm (1.2") |
Maximum comfort with a modern, ergonomic design
Malleable temples and nose pad can be customized to fit any face perfectly
Innovative materials: Carbon-Kynetium reduces weight (24 g)
Tough polycarbonate protective lenses
Optional clip-in correction frame for prescription lenses

S-GUARD splash protection
Ergonomic nose pad for comfort during long procedures
Fully-adjustable for height and width to fit any head
Hygienic and comfortable leather cushions
Optional clip-in correction frame for prescription lenses

Ideal for spectacle-wearers in combination with their own spectacles
Fully-adjustable for height and width to fit any head
Hygienic and comfortable leather cushions

| Working distance | Field of view | Depth of field |
| 340 mm (13") | 90 mm (3.5") | 110 mm (4.3") |
| 420 mm (16") | 130 mm (5") | 180 mm (7") |
| 520 mm (20") | 180 mm (7") | 260 mm (10") |
Maximum comfort with a modern, ergonomic design
Malleable temples and nose pad can be customized to fit any face perfectly
Innovative materials: Carbon-Kynetium reduces weight (24 g)
Tough polycarbonate protective lenses
Optional clip-in correction frame for prescription lenses

S-GUARD splash protection
Ergonomic nose pad for comfort during long procedures
Fully-adjustable for height and width to fit any head
Hygienic and comfortable leather cushions
Optional clip-in correction frame for prescription lenses

Ideal for spectacle-wearers in combination with their own spectacles
Fully-adjustable for height and width to fit any head
Hygienic and comfortable leather cushions


Ideal for dental laboratories and general medical examination.
Crisp, clear images. Multi-coated, scratch-resistant silica glass lenses produce crisp, clear images
Flexibility for precise adjustment. Independently adjustable PD controls ensure precise alignment of the optics
Super lightweight and comfortable – only 46g. Flexible coil temples wrap-around to fit the user’s anatomy securely and comfortably. Spring-loaded temples will adjust to the user’s anatomy. Lightweight metal frame
The ideal all-purpose loupe. The feather-light weight, low-profile design and low cost of the C2.3K loupe make it the ideal all-purpose loupe
Working distance. 340mm or 450mm (13 or 18 inches)
| Specifications | C2.3K | 340 mm | C2.3K | 450 mm |
| Magnification | 2.3 x | 2.3 x |
| Working distance | 340 mm (13 inches) | 450 mm (18 inches) |
| Field of view Ø | 110 mm | 130 mm |
| Weight | 160g | 160g |
| Depth of field | 120 mm | 190 mm |
The C2.3K loupe can be worn with spectacles. Should you prefer to examine without glasses, the charts illustrate how your refractive error will affect the loupe working distance. If you are unsure of your prescription, please consult your eye care provider.
| User’s refractive error | Effective working distance C2.3x | 340 mm | Effective working distance C2.3x | 450 mm |
| +2 | 440 mm | 670 mm |
| +1 | 390 mm | 560 mm |
| 0 | 340 mm | 450 mm |
| -1 | 300 mm | 420 mm |
| -2 | 270 mm | 370 mm |
HEINE C2.3K|340 headband loupe in case
Specifications C2.3K | 340 mm
Detachable protective lenses for C2.3K to protect the optic
Protective lenses to protect the optics of the HEINE HRP loupes