| Counting chamber according to Improved Neubauer | |
| | Counting chamber according to Improved Neubauer (Petroff) | |
| | Counting chamber according to Neubauer | |
|
 | Counting chamber, Improved Neubauer | |
|  | Counting chamber, Improved Neubauer | |
|  | Counting chamber, Improved Neubauer | |
|
 | Counting chamber, Improved Neubauer | |
| | Counting chamber, Improved Neubauer | |
| | Counting chamber, Improved Neubauer, bright line | |
|
