Squares & Grids
Net grids – grids of squares covering the whole reticle : NE10,NE11,NE34
Indexed grids : NE10A,NE11A,NE34A,NE71,NE35
Chessboard squares : NE15
Ratio squares : NE38
Miller squares : NE57
Whipple grid : NE29
Miller Squares 10:1 Ratio With Small Square Centred : NE57C
Graticules Optics now offer 20.4mm (Olympus), 24.5mm (Leica) and 25mm (Nikon, Meiji) diameter reticles at standard prices – no need to pay a premium price for a special size

Key Features
Eyepiece reticle with 0.5mm squares covering the complete surface
Known as a net reticle, this product has a grid of 0.5mm squares covering the whole surface.
Pattern |
Description |
Diameter |
Order code |
NE10 |
Grid (net) 0.5mm pitch |
16mm |
01B16207 |
|
Specify diameter on all orders |
19mm |
01B19207 |
|
|
20.4mm |
01B20.4207 |
|
|
21mm |
01B21207 |
|
|
23mm |
01B23207 |
|
|
24mm |
01B24207 |
|
|
24.5mm |
01B24.5207 |
|
|
25mm |
01B25207 |
|
|
26mm |
01B26207 |
|
|
27mm |
01B27207 |
|
|
Others |
|

Key Features
Eyepiece reticle with 10 x 10 grid of 0.5mm indexed squares,
100 x 0.5mm squares in a 10 x 10 grid, indexed 1 - 10 along top and A - J down the side.
Pattern |
Description |
Diameter |
Order code |
NE10A |
Indexed Grid 0.5mm pitch |
16mm |
01B16208 |
|
Specify diameter on all orders |
19mm |
01B19208 |
|
|
21mm |
01B21208 |
|
|
23mm |
01B23208 |
|
|
24mm |
01B24208 |
|
|
26mm |
01B26208 |
|
|
27mm |
01B27208 |
|
|
Others |
|

Key Features
Eyepiece reticle with 1mm squares covering the complete surface
Known as a net reticle, this product has a grid of 1mm squares covering the full surface.
Pattern |
Description |
Diameter |
Order code |
NE11 |
Grid (net) 1.0mm pitch |
16mm |
01B16209 |
|
Specify diameter on all orders |
19mm |
01B19209 |
|
|
20.4mm |
01B20.4209 |
|
|
21mm |
01B21209 |
|
|
23mm |
01B23209 |
|
|
24mm |
01B24209 |
|
|
24.5mm |
01B24.5209 |
|
|
25mm |
01B25209 |
|
|
26mm |
01B26209 |
|
|
27mm |
01B27209 |
|
|
Others |
|

Key Features
Eyepiece reticle with 10 x 10 grid of 1mm indexed squares,
100 x 1mm squares in a 10 x 10 grid, indexed 1 - 10 along top and A - J down the side.
Pattern |
Description |
Diameter |
Order code |
NE11A |
Indexed Grid 1.0mm pitch |
16mm |
01B16210 |
|
Specify diameter on all orders |
19mm |
01B19210 |
|
|
20.4mm |
01B20.4210 |
|
|
21mm |
01B21210 |
|
|
23mm |
01B23210 |
|
|
24mm |
01B24210 |
|
|
24.5mm |
01B24.5210 |
|
|
25mm |
01B25210 |
|
|
26mm |
01B26210 |
|
|
27mm |
01B27210 |
|
|
Others |
|

Key Features
Eyepiece reticle with chessboard pattern of black/clear squares
2mm squares across the whole surface of the reticle, alternate black (semi-coat, 50% transmission) and clear squares, designed to reduce operator eyestrain.
Pattern |
Description |
Diameter |
Order code |
NE15 |
Chessboard 2.0mm squares |
16mm |
01B16211 |
|
Specify diameter on all orders |
19mm |
01B19211 |
|
|
20.4mm |
01B20.4211 |
|
|
21mm |
01B21211 |
|
|
23mm |
01B23211 |
|
|
24mm |
01B24211 |
|
|
24.5mm |
01B24.5211 |
|
|
25mm |
01B25211 |
|
|
26mm |
01B26211 |
|
|
27mm |
01B27211 |
|
|
Others |
|

Key Features
Eyepiece reticle with 10 x 10 grid of squares in 7mm x 7mm area
Standard version has 100 squares arranged in a 10 x 10 grid or total area 7mm x 7mm. Central square is further subdivided into 5 x 5 grid. Ratio of full square to smallest square is 50:1, area ratio is 2500:1. Centre cross-line is thicker than the other grid lines.
This reticle is also available with a 10mm x 10mm grid to special order.
Pattern |
Description |
Diameter |
Order code |
NE29 |
Whipple Grid 100 Sq.in 7mm Area |
16mm |
01B16218 |
|
Specify diameter on all orders |
19mm |
01B19218 |
|
|
20.4mm |
01B20.4218 |
|
|
21mm |
01B21218 |
|
|
23mm |
01B23218 |
|
|
24mm |
01B242618 |
|
|
24.5mm |
01B24.5218 |
|
|
25mm |
01B25218 |
|
|
26mm |
01B26218 |
|
|
27mm |
01B27218 |
|
|
Others |
|

Key Features
Eyepiece reticle with net grid of 0.1mm squares
Known as a net reticle, this product has a grid of 0.1mm squares covering the whole surface.
Pattern |
Description |
Diameter |
Order code |
NE34 |
Net Grid 0.1mm Squares, grid covers the surface of the reticle |
16mm |
01B16300 |
|
Specify diameter on all orders |
19mm |
01B19300 |
|
|
20.4mm |
01B20.4300 |
|
|
21mm |
01B21300 |
|
|
23mm |
01B23300 |
|
|
24mm |
01B24300 |
|
|
24.5mm |
01B24.5300 |
|
|
25mm |
01B25300 |
|
|
26mm |
01B26300 |
|
|
27mm |
01B27300 |
|
|
Others |
|

Key Features
Eyepiece reticle with 10 x 10 grid of 0.1mm indexed squares,
100 x 0.1mm squares in a 10 x 10 grid, indexed 1 - 10 along top and A - J down the side.
Pattern |
Description |
Diameter |
Order code |
NE34A |
Indexed Grid 0.1mm Squares |
16mm |
01B16220 |
|
Specify diameter on all orders |
19mm |
01B19220 |
|
|
20.4mm |
01B20.4220 |
|
|
21mm |
01B21220 |
|
|
23mm |
01B23220 |
|
|
24mm |
01B24220 |
|
|
24.5mm |
01B24.5220 |
|
|
25mm |
01B25220 |
|
|
26mm |
01B26220 |
|
|
27mm |
01B27220 |
|
|
Others |
|

Key Features
Eyepiece reticle, 10 x 10 grid of 1mm squares each individually numbered
100 x 1mm squares in a 10 x 10 grid with index numbers in the corner of each square.
Pattern |
Description |
Diameter |
Order code |
NE35 |
Numbered Grid 1mm Squares |
16mm |
01B16221 |
|
Specify diameter on all orders |
19mm |
01B19221 |
|
|
20.4mm |
01B20.4221 |
|
|
21mm |
01B21221 |
|
|
23mm |
01B23221 |
|
|
24mm |
01B24221 |
|
|
24.5mm |
01B24.5221 |
|
|
25mm |
01B25221 |
|
|
26mm |
01B26221 |
|
|
27mm |
01B27221 |
|
|
Others |
|

Key Features
Eyepiece reticle with 3 squares inside each other
Reticle has three squares annotated A, B and C. A is 4mm, B is 7mm and C is 10mm. Area ratio of A:B is 1:3 and B:C is 1:2.
Pattern |
Description |
Diameter |
Order code |
NE38 |
Squares 10mm, 7mm, 4mm |
16mm |
01B16222 |
|
Specify diameter on all orders |
19mm |
01B19222 |
|
|
20.4mm |
01B20.4222 |
|
|
21mm |
01B21222 |
|
|
23mm |
01B23222 |
|
|
24mm |
01B24222 |
|
|
24.5mm |
01B24.5222 |
|
|
25mm |
01B25222 |
|
|
26mm |
01B26222 |
|
|
27mm |
01B27222 |
|
|
Others |
|

Key Features
Eyepiece reticle for Haematology
Reticle has two squares, one small one in the corner of one large one, ratio of large to small is 10:1. The large counting area being 9 times the area of the smaller inner square. Large square is 7mm x 7mm. Used for Reticulocyte/RBC ration counts and rapid counting of particles.
Pattern |
Description |
Diameter |
Order code |
NE57 |
Miller squares, 7 x 7 mm |
16mm |
01B16232 |
|
Specify diameter on all orders |
19mm |
01B19232 |
|
|
20.4mm |
01B20.4232 |
|
|
21mm |
01B21232 |
|
|
23mm |
01B23232 |
|
|
24mm |
01B24232 |
|
|
24.5mm |
01B24.5232 |
|
|
25mm |
01B25232 |
|
|
26mm |
01B26232 |
|
|
27mm |
01B27232 |
|
|
Others |
|
Alternative designs available:-
NE57C Miller Squares 10:1 ratio with small square centered

Key Features
New Miller Square, 8 x 8 mm large square with centred smaller square, ratio 10:1
Pattern |
Description |
Diameter |
Order code |
NE57C |
Miller squares, Centered |
16mm |
01B16240 |
|
Specify diameter on all orders |
19mm |
01B19240 |
|
|
20.4mm |
01B20.4240 |
|
|
21mm |
01B21240 |
|
|
23mm |
01B23240 |
|
|
24mm |
01B24240 |
|
|
24.5mm |
01B24.5240 |
|
|
25mm |
01B25240 |
|
|
26mm |
01B26240 |
|
|
27mm |
01B27240 |
|
|
Others |
|

Key Features
Eyepiece reticle with 20 x 20 grid of 0.5mm indexed squares,
400 x 0.5mm squares in a 20 x 20 grid, indexed 1 - 20 along top and A - T down the side.
Pattern |
Description |
Diameter |
Order code |
NE71 | Index pattern, 10mm x 10mm grid with 0.5mm sguares, marked 1-20, A-T |
21mm |
01B21302 |
Specify diameter on all orders |
23mm |
01B23302 |
|
|
24mm |
01B24302 |
|
|
24.5mm |
01B24.5302 |
|
|
|
25mm |
01B25302 |
|
|
26mm |
01B26302 |
|
|
27mm |
01B27302 |
|
|
Others |
|