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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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.