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Scales w/Crossline
100% Made in the U.S.A.
 

50 Divisions Per Scale

Inches

 Part Number Description 
S-14400 Scale Crossline Reticle, 0.500 in. total, 50 div., 0.0100 in. per div.

Millimeters

 Part Number Description 
S-14401 Scale Crossline Reticle, 10mm total, 50 div., 0.20mm per div.
S-14402 Scale Crossline Reticle, 12mm total, 50 div., 0.24mm per div.
 

100 Divisions Per Scale

Inches

 Part Number Description 
S-14375 Scale Crossline Reticle 0.100 in. total, 100 div., 0.0010 in. per div.-Horiz.
S-14374 Scale Crossline Reticle 0.100 in. total, 100 div., 0.0010 in. per div.-Vert.
S-14376 Scale Crossline Reticle 0.200 in. total, 100 div., 0.0020 in. per div.
S-14377 Scale Crossline Reticle 0.250 in. total, 100 div., 0.0025 in. per div.
S-14378 Scale Crossline Reticle 0.300 in. total, 100 div., 0.0030 in. per div.
S-14379 Scale Crossline Reticle 0.350 in. total, 100 div., 0.0035 in. per div.
S-14380 Scale Crossline Reticle 0.375 in. total, 100 div., 0.00375 in. per div.
S-14381 Scale Crossline Reticle 0.400 in. total, 100 div., 0.0040 in. per div.
S-14384 Scale Crossline Reticle 0.500 in. total, 100 div., 0.0050 in. per div-Horiz.
S-14383 Scale Crossline Reticle 0.500 in. total, 100 div., 0.0050 in. per div-Vert.
S-14387 Scale Crossline Reticle 0.600 in. total, 100 div., 0.0060 in. per div., Horiz.
S-14386 Scale Crossline Reticle 0.600 in. total, 100 div., 0.0060 in. per div., Vert.

Millimeters

 Part Number Description 
S-14396 Scale Crossline Reticle 4mm total, 100 div., 40 micron per div.
S-14397 Scale Crossline Reticle 5mm total, 100 div., 50 micron per div.
S-14399 Scale Crossline Reticle 8mm total, 100 div., 80 micron per div.
S-14390 Scale Crossline Reticle 10mm total, 100 div., 0.10mm per div.
S-14393 Scale Crossline Reticle 20mm total, 100 div., 0.20mm per div.
 

200 Divisions Per Scale

Inches

 Part Number Description 
S-14382 Scale Crossline Reticle 0.400 in. total, 200 div., 0.0020 in. per div.
S-14385 Scale Crossline Reticle 0.500 in. total, 200 div., 0.0025 in. per div.
S-14388 Scale Crossline Reticle 0.600 in. total, 200 div., 0.0030 in. per div.

Millimeters

 Part Number Description 
S-14398 Scale Crossline Reticle 5mm total, 200 div., 25 microns per div.
S-14391 Scale Crossline Reticle 10mm total, 200 div., 50 microns per div.
S-14395 Scale Crossline Reticle 20mm total, 200 div., 0.10mm per div. Horiz.
S-14394 Scale Crossline Reticle 20mm total, 200 div., 0.10mm per div. Vert.
 

MISCELLANEOUS

 Part Number Description 
S-14389 Scale Crossline Reticle 0.800 in. total, 160 div. w/20mm/200 div.
S-14392 Scale Crossline Reticle 12mm total, 120 div., 0.10mm per div.

COMMON QUESTIONS

What is an eyepiece reticle?

A reticle is a glass disc with a scale, grid, crossline, or other pattern. It sits at the focus of the eyepiece so the pattern is sharp when the specimen is sharp. Graticule means the same thing.

What diameter do I need?

The disc has to match the eyepiece, not the microscope brand. Common sizes are 19 mm, 21 mm, and 26.5 mm, but we can supply almost any diameter you want. If you are not sure what your eyepiece requires, you will need to measure the opening. A disc that is the wrong diameter will not seat. More on choosing the diameter.

What is the difference between a scale, a grid, and a crossline?

A scale is a line divided into equal parts, for length. A grid is squares, for area and counting. A crossline is two lines that cross, for centering. Other patterns are for angles, particles, or special counts. More on choosing a scale value and Reticle Scale Calculator.

What size scale or number of divisions do I need?

That depends on the smallest feature you want to measure and the objective you will use. The spacing on the reticle is that size times the objective magnification. A 100-division scale then covers 100 times that spacing. The Reticle Scale Calculator can help you with this and also shows the total length of the scale.

Do I need a stage micrometer?

Yes, if you need a real length and not just divisions. The reticle scale is in the eyepiece. A stage micrometer is a known scale on the stage. You compare the two to calibrate that objective. Stage micrometers are listed on their own page.

Can these be calibrated?

Stage micrometers can be supplied with NIST-traceable calibration. An eyepiece reticle by itself is a pattern. The measurement is only calibrated after you compare it to a stage micrometer on your microscope.

Can you make a custom pattern?

Yes. Just send a drawing or a description. Popular custom patterns are a scale, grid, or crossline with your dimensions, a pattern allowing for go/no-go decisions, patterns with comparison dot sizes, etc. If you can describe it we'll be happy to discuss and quote it. We always confirm the final design with you before it is made. More details here.

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