Disassembled body tube. C: objective; B: Field lens; A: Eyelens. All lenses are plano-convex.
Arrangement of lenses: A: Eyelens; B: Field lens, C: objective.
Disassembled Huygenian eyepiece. The flat side of both lenses faces out.
There are 11 objective lenses, all stored in depressions in this wooden block. 3.1x12.5cm
|
Objective
|
Diameter
|
f
|
|
1
|
6
|
28
|
|
2
|
6
|
15
|
|
3
|
5.5
|
13
|
|
4
|
5.0
|
8
|
|
5
|
4.5
|
13
|
|
6
|
4.5
|
10
|
|
7
|
4.5
|
9
|
|
8
|
4.5
|
8
|
|
9
|
3.5
|
4
|
|
10
|
2
|
3
|
|
11
|
1
|
2-3
|
A few objectives have 1, 2, or 3 "dot" marking.