binocular prisms for sale

Prisms for sale mainly porro but a few roof.

Replacement prisms last updated October 2021
I have over 150 different sizes of prisms in stock.
Please note that even 0.5mm can make all the difference between
a prism fitting or not. All measurements are in mm.
Prisms cost from £2 to £12 each but Zeiss Jena prisms are from £12 to £24 each

Column One is my stock number. I know it's strange but it has evolved over 30 plus years.
Column 2 is the length of the base.
Col 3 is the height.
Col 4 is the width.
Col 5 is the shape of the base. Standard; wedged or rectangular.
Col 6. In some sizes you have the choice of Straight sides; one sloped side or two.
Col 7 gives any special features, such as a cut base.

Prisms up to 39.9 mm base.

Stock No. Length Width Height Base Sides Extras

x 12.5 12.5 16.2 compact Str roof

y 19.12 12 15 compact str roof

m 22 11.4 15.65 rt angle str silvered

30B 24.8 12.5 12.2 std str

30C 24.8 12.6 13.86

O 28 13.6 11.5 std 10A 26.6/22.8 ? ? TBA

OA 28 14 13.9 std str 10D 27.9/24.2 ? ? TBA

OB 28.34 14.57 11.82

1 28.9 14.2 13 std 1

1+ 29.35 14.19 14.65

2A 30 15 14.6 std str

2 30.2 15.6 12.4 std str

3A 31 14.8 14.5 std str

19 31.3 15.3 14.5 std str

2B 31.7 16 14.62 std str

24 32.4 16.5 14 std 1

24A 32 16 16 std str

20 32.7 16.4 15 std str

20A 33 16.83 17.49

26 33.18 17.25 13.91

25 33.6 17.4 15 std

24B 33.6 16 16

27 34.3 17.6 15 std 2 tiny marks

27A 34.84 17.17 15.45

18 35 17.7 15.3 std str and 2

23F 35.35 18.3 17

18A 35.5 17.4 16.3 std str

18B 35.1 17.5 16 std str

18D 35.5 17.7 15.9 std str

28 36.8 19.4 16 std

28B 36 17 18 std 2

4 37.4 19.2 19 std 1

4B 37.2 19.2 17 std

4C 37.8 17.9 19 std 1

4D 37.8 18.25 16.5

23A 38 17.7 16.5 std 2

23 38.2 20.2 17.7 std str

23C 38.2 20.2 16 std str

23D 38.5 18.2 17.9 std str

23E 38.4 18.6 17.5 std str

4E 38.7 20.6 20.72

23G 38.6 18.8 19

6B 39.4 19.9 19.5 Deltrintem

6E 39.5 20 20.34

6C 39.55 20 19.65

6 39.8 20.2 19.5 std

6+ 39.44 19.05 19

6D 39.84 20.45 19.37

7 39.8 20.1 20.5 std 1

6F 39.65 20.35 18.41

6A 39.9 19 20.5 std 1

8A 39.9 20.7 20.5 std 1

Prisms with bases from 40mm

Stock No. Length Width Height Base Sides Extras
5 40 20.5 18.3 std

5F 40 19.55 19.45

7D 40.2 21.1 19.9 std 2 cut base

5E 40.45 20.76 19.75 std 2 cut base. REL 6 30

7E 40.19 20.14 19.5

29B 40.1 20.39 20.44

5B 40 20.5 19.45 std

8B 40 20.5 18.2 std

7B 40.2 20.5 19.5 std 1

7C 40.2 20.5 20.5 std 2

5C 40.3 19.2 20 std 2

5A 40.4 19.6 19.5 std 2

5D 40.75 19.8 19.7
29 41 20 19.5 std
29A 41 21 20
29+ 41.7 20.7 20
22 41.3 21.4 21.6 std
22A 41.5 22 21.6 std 1 Bak 4
8 41.8 21.3 20.1 std str
22B 41.5 21.22 20.32
9 42 21.2 21/19 wedge
9+ 42 20.2 19.6
9++ 42 20.4 19.2
9+++ 42 20.8 19.2
9E 42.4 21.5 22.5/17.5 wedge
7A 42.4 21 18.3 std str
9F 42.4 21.16 20.86
7E 42.66 21.31 20.9 std
9G 42.84 21.14 21.53
9C 43 23.3 26.7/18 wedge 2
11D 43 21.7 20.9 std str
11C 43.2 21.2 20 std
11C+ 43.85 21.95 21.3
11B 43.5 21 20 std
11E 43.56 21 19
10 43.6 21.7 21.5/? wedge
10 43.6 21.7 21.5 std
10+ 43.8 21.8 21.44
10C 43.7 22.3 21.8 std 1
11 44 21.5 21.5
9B 44 21.5 21/19 wedge 1
21 44 21.9 21.9 std str or 1
21A 44.1 21.8 22.2 std 1

Prisms with bases from 44.2 mm

Stock No. Length Width Height Base Sides Extras
21D 44.2 21.5 21.5 std 1
21E 44.8 22.4 19.56 std str
21G 44.6 22.9 18.9
9A 45 22.4 23/21 wedge 1
12B 45 22.7 21 std 2
12 45.2 23.2 22.6 std str/1/2
12D 45.3 22.56 20.6
12+ 45.8 22.8 22.2
12++ 45.8 22.8 23.33
13 46 23.2 22.6 std str
13++ 46 23 22
13A 46.77 23.4 21.6 std 2
12B+ 47.5 23.3 23.2
14 47.6 23.6 23.3 std 1
15 51.5 26.3 25.8
17C 52 26.4 25.7 std 1
17B 52.4 26.5 25.5 std 2
17 52.5 26.4 26 std 1 Swift 85 44
17+ 52.8 26.9 25.6
17A 52.7 26.3 25 std 1
17D 51 26.3 25.4 std 1
16A 53.9 27.2 27
10D 54.5 27.6 27/25 wedge 1
10A 55 27.2 28/25 wedge 1
Zeiss 37.83 16.42 17.62 jena 8 30
Zeiss 40.13 19.4 19.15 jena 8 30
Zeiss 51.77 24.82 25.58 jena 10 50
Zeiss 66.4 15.8 15.6 Jena periscope
other Zeiss Jena binocular prisms available,