Eyepiece Reticles
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An eyepiece reticle is a glass disc with a pattern on it that fits at the optical plane inside a microscope eyepiece. It is used to provide alignment, measurement, size or shape comparison, or area counting of specimens by having the reticle pattern superimposed over the specimen image. The term reticle, graticule and reticule are all used to describe these items. Graticules Optics produce Pyser eyepiece reticles which are made using 1.5mm thick optical glass. The image is created using a vacuum evaporated chrome process and is correct reading through the glass. They are available in a variety of standard diameters to suit most microscopes in the marketplace. Custom sizes are available to special order. |
Pyser produce a wide range of reticle patterns which includes:
- Lines and cross-lines for alignment
- Scales and gauges for measurement
- Grids for counting and referencing
- Particle sizing to determine shape, size an quantity of materials of vapours
- Protractors for measuring angles
- Stereology for extracting quantitative information from 3D images
- Many specialist pattern designed for scientists for specific applications
The two things you should consider when choosing your eyepiece reticle:
1. What pattern is suitable for your application?
2. What is the diameter of your microscope eyepiece?
Pyser Eyepiece Reticle Patterns
LINES AND CROSSES |
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Single lines: NE50 For measurement of large objects in conjunction with graduated mechanic stage and the alignment. |
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Crosslines: NE8, NE81, NE82 Used as for NE50 but for measurements in two directions. |
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Broken Crosslines: NE56 Used as cross lines. Broken lines enable fine detail to be seen at the breaks. A thin boundary would be lost behind a continuous line. |
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Crossed Gauge Lines: NE53, NE54 Used as crossed lines but for measuring distances between lines. Greater accuracy cam be obtained by locating the specimen detail between the reticle gauge air. |
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EYEPIECE SCALES |
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Horizontal and Vertical Scales: NE1, NE2, NE5, NE20, NE28, NE31, NE41, NE120 Used for measuring lengths of specimen or distances between points on a variety of different shaped objects. |
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Crossed Scales: NE17, NE18, NE70, NE72 Used as horizontal and vertical scales and especially useful when interested in measurements in different axis. |
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Scales and Crosslines: NE7, NE7N, NE77, NE777 The inclusion of a crossline assists in ensuring alignment of the reticle with edges etc. in the specimen. |
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SQUARES & GRIDS* |
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Squared Grids: NE10, NE11, NE34 Simple grids are convenient for making sketches of the observed specimen. They are also useful for particle counting. |
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Index Grids: NE10A, NE11A, NE34A, NE71, NE35 Useful for particle counting particularly where reference is needed between workers. Also useful for area of specimen determinations. |
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Chessboard Squares: NE15 The dark squares are translucent. Used as an alternative to simple grids for area of specimen determination and particle counting. Alternate light and dark squares help to reduce eyestrain. Semi coating gives approximately 50% light transmission. |
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Squares & Grids: NE38 Combines three areas in one for convenience, giving area ratios A:B or 1:3 and B:C of 1:2. |
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Miller Squares: NE57, NE57C The ratio of large to small square is 9:1 or 10:1. Originally designed for haematology, they can be utilised for rapid counting of any evenly spread field of particles. |
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Whipple Grid: NE29, NE29B Originally designed for water particle analysis, but may be used for other aspects of particle counting. Grid shown: Ratio of full square to smallest is 50:1. Area is 2500:1 (Reference: Microscopy of water) |
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CIRCLE GUAGES & PROTRACTORS |
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Concentric Circles: NE42, NE43, NE44, NE47, NE48, NE22 Can be used for two-way measurement when calibrated as a micrometer. |
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Gauge Pairs: NE19 Gauge pairs occupying a field of view of 10mm. Each gauge is proportional to its adjacent number. Approximate size of smallest pair = 0.1mm. |
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Half Protractors: NE25 These are used for measuring angles when placed in the eyepiece, much like ordinary protractors. |
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Full Protractors: NE45 These are used for measuring angles when placed in the eyepiece, much like ordinary protractors. |
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PARTICLE SIZING & DISTRIBUTION | ||||
STEREOLOGY | ||||
![]() Mertz Reticle, 36 pts: NGM1 |
![]() Weibel 1: NGW1 |
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METALLURGY | ||||
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![]() ASTM Carbide Grain Sizing Chart: G43 |
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SPECIALIST DESIGNS | ||||
Zeiss Integrating Eyepiece 1 (Henning Reseau Pattern 25pts): G49 |
* Note these may need to be calibrated according to the intended use.
See here for further information on Pyser Certification Standards
LM Pyser Reticles
Code | Title | Option 1 | Option 2 | Option 3 | Availability* | Price | |
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GRA01A245062 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 24.5mm | Each | leadtime:2 months | AU $388.00 | |
S01A24062 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 24mm | Each | leadtime:2 months | AU $341.00 | |
GRA01A20.4062 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRA01A23062 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01A25062 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 25mm | Each | leadtime:2 months | AU $0.00 | |
S8028 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 16mm | Each | Only 3 | AU $388.00 | |
S8029 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 19mm | Each | leadtime:2 months | AU $388.00 | |
S8030 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 21mm | Each | Only 1 | AU $388.00 | |
S01A26062 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 26mm | Each | leadtime:2 months | AU $388.00 | |
S01A27062 | G22 eyepiece reticles, Walton & Beckett 3:1 | G22 | 27mm | Each | leadtime:2 months | AU $388.00 | |
GRA01B21302 | NE71 eyepiece reticles, indexed grid | NE71 | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23302 | NE71 eyepiece reticles, indexed grid | NE71 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5302 | NE71 eyepiece reticles, indexed grid | NE71 | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24302 | NE71 eyepiece reticles, indexed grid | NE71 | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25302 | NE71 eyepiece reticles, indexed grid | NE71 | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26302 | NE71 eyepiece reticles, indexed grid | NE71 | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27302 | NE71 eyepiece reticles, indexed grid | NE71 | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B16242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 16mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B19242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 19mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B20.4242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B21242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27242 | NE48 eyepiece reticles, concentric circles + crossline | NE48 | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B21228 | NE47 eyepiece reticles, concentric circles | NE47 | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23228 | NE47 eyepiece reticles, concentric circles | NE47 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5228 | NE47 eyepiece reticles, concentric circles | NE47 | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24228 | NE47 eyepiece reticles, concentric circles | NE47 | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25228 | NE47 eyepiece reticles, concentric circles | NE47 | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26228 | NE47 eyepiece reticles, concentric circles | NE47 | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27228 | NE47 eyepiece reticles, concentric circles | NE47 | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B16226 | NE44 eyepiece reticles, concentric circles | NE44 | 16mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B19226 | NE44 eyepiece reticles, concentric circles | NE44 | 19mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B20.4226 | NE44 eyepiece reticles, concentric circles | NE44 | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B21226 | NE44 eyepiece reticles, concentric circles | NE44 | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23226 | NE44 eyepiece reticles, concentric circles | NE44 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5226 | NE44 eyepiece reticles, concentric circles | NE44 | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24226 | NE44 eyepiece reticles, concentric circles | NE44 | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25226 | NE44 eyepiece reticles, concentric circles | NE44 | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26226 | NE44 eyepiece reticles, concentric circles | NE44 | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27226 | NE44 eyepiece reticles, concentric circles | NE44 | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B16225 | NE43 eyepiece reticles, concentric circles | NE43 | 16mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B19225 | NE43 eyepiece reticles, concentric circles | NE43 | 19mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B20.4225 | NE43 eyepiece reticles, concentric circles | NE43 | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B21225 | NE43 eyepiece reticles, concentric circles | NE43 | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23225 | NE43 eyepiece reticles, concentric circles | NE43 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5225 | NE43 eyepiece reticles, concentric circles | NE43 | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24225 | NE43 eyepiece reticles, concentric circles | NE43 | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25225 | NE43 eyepiece reticles, concentric circles | NE43 | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26225 | NE43 eyepiece reticles, concentric circles | NE43 | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27225 | NE43 eyepiece reticles, concentric circles | NE43 | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B16222 | NE38 eyepiece reticles, ratio squares | NE38 | 16mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B19222 | NE38 eyepiece reticles, ratio squares | NE38 | 19mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B20.4222 | NE38 eyepiece reticles, ratio squares | NE38 | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B21222 | NE38 eyepiece reticles, ratio squares | NE38 | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23222 | NE38 eyepiece reticles, ratio squares | NE38 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5222 | NE38 eyepiece reticles, ratio squares | NE38 | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24222 | NE38 eyepiece reticles, ratio squares | NE38 | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25222 | NE38 eyepiece reticles, ratio squares | NE38 | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26222 | NE38 eyepiece reticles, ratio squares | NE38 | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27222 | NE38 eyepiece reticles, ratio squares | NE38 | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B16221 | NE35 eyepiece reticles, numbered grid | NE35 | 16mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B19221 | NE35 eyepiece reticles, numbered grid | NE35 | 19mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B20.4221 | NE35 eyepiece reticles, numbered grid | NE35 | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B21221 | NE35 eyepiece reticles, numbered grid | NE35 | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23221 | NE35 eyepiece reticles, numbered grid | NE35 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5221 | NE35 eyepiece reticles, numbered grid | NE35 | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24221 | NE35 eyepiece reticles, numbered grid | NE35 | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25221 | NE35 eyepiece reticles, numbered grid | NE35 | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26221 | NE35 eyepiece reticles, numbered grid | NE35 | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27221 | NE35 eyepiece reticles, numbered grid | NE35 | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B16220 | NE34A eyepiece reticles, indexed grid | NE34A | 16mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B19220 | NE34A eyepiece reticles, indexed grid | NE34A | 19mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B20.4220 | NE34A eyepiece reticles, indexed grid | NE34A | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B21220 | NE34A eyepiece reticles, indexed grid | NE34A | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23220 | NE34A eyepiece reticles, indexed grid | NE34A | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5220 | NE34A eyepiece reticles, indexed grid | NE34A | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24220 | NE34A eyepiece reticles, indexed grid | NE34A | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25220 | NE34A eyepiece reticles, indexed grid | NE34A | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26220 | NE34A eyepiece reticles, indexed grid | NE34A | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27220 | NE34A eyepiece reticles, indexed grid | NE34A | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B16300 | NE34 eyepiece reticles, pitch squares | NE34 | 16mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B19300 | NE34 eyepiece reticles, pitch squares | NE34 | 19mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B20.4300 | NE34 eyepiece reticles, pitch squares | NE34 | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B21300 | NE34 eyepiece reticles, pitch squares | NE34 | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23300 | NE34 eyepiece reticles, pitch squares | NE34 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5300 | NE34 eyepiece reticles, pitch squares | NE34 | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24300 | NE34 eyepiece reticles, pitch squares | NE34 | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25300 | NE34 eyepiece reticles, pitch squares | NE34 | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26300 | NE34 eyepiece reticles, pitch squares | NE34 | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27300 | NE34 eyepiece reticles, pitch squares | NE34 | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B16219 | NE31 eyepiece reticles, horizontal scale | NE31 | 16mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B19219 | NE31 eyepiece reticles, horizontal scale | NE31 | 19mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B20.4219 | NE31 eyepiece reticles, horizontal scale | NE31 | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B21219 | NE31 eyepiece reticles, horizontal scale | NE31 | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B23219 | NE31 eyepiece reticles, horizontal scale | NE31 | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24.5219 | NE31 eyepiece reticles, horizontal scale | NE31 | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B24219 | NE31 eyepiece reticles, horizontal scale | NE31 | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B25219 | NE31 eyepiece reticles, horizontal scale | NE31 | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B26219 | NE31 eyepiece reticles, horizontal scale | NE31 | 26mm | Each | leadtime:2 months | AU $0.00 | |
GRA01B27219 | NE31 eyepiece reticles, horizontal scale | NE31 | 27mm | Each | leadtime:2 months | AU $0.00 | |
GRAPC-0464-KW-19 | NE29B eyepiece reticles, whipple grid | NE29B | 19mm | Each | leadtime:2 months | AU $0.00 | |
GRAPC-0464-KW-20.4 | NE29B eyepiece reticles, whipple grid | NE29B | 20.4mm | Each | leadtime:2 months | AU $0.00 | |
GRAPC-0464-KW-21 | NE29B eyepiece reticles, whipple grid | NE29B | 21mm | Each | leadtime:2 months | AU $0.00 | |
GRAPC-0464-KW-23 | NE29B eyepiece reticles, whipple grid | NE29B | 23mm | Each | leadtime:2 months | AU $0.00 | |
GRAPC-0464-KW-24 | NE29B eyepiece reticles, whipple grid | NE29B | 24mm | Each | leadtime:2 months | AU $0.00 | |
GRAPC-0464-KW-24.5 | NE29B eyepiece reticles, whipple grid | NE29B | 24.5mm | Each | leadtime:2 months | AU $0.00 | |
GRAPC-0464-KW-25 | NE29B eyepiece reticles, whipple grid | NE29B | 25mm | Each | leadtime:2 months | AU $0.00 | |
GRAPC-0464-KW-26 | NE29B eyepiece reticles, whipple grid | NE29B | 26mm | Each | leadtime:2 months | AU $0.00 | |