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Reticles / Eyepiece Micrometers


Microscope micrometers are commonly used for measuring or counting specimens. Eyepiece micrometers (also referred to as “reticles”) are small glass discs with markings on them. The micrometer is mounted in one of the two eyepieces and superimposes an image of the markings over the image of the specimen. Stage micrometers are slides with markings of a known dimension that, when viewed under the microscope, can be used to calibrate eyepiece micrometers.

$65.00 $100.00

Microscope micrometers are commonly used for measuring or counting specimens. Eyepiece micrometers (also referred to as “reticles”) are small glass discs with markings on them. The micrometer is mounted in one of the two eyepieces and superimposes an image of the markings over the image of the specimen. Stage micrometers are slides with markings of a known dimension that, when viewed under the microscope, can be used to calibrate eyepiece micrometers. Calibration instructions are available here.

Reticles / Eyepiece Micrometers

What size of reticle do I need? How do I install an eyepice micrometer?

1. Remove the eyepiece from the microscope viewing head:

2. Flip over the eyepiece, remove the reticle holder from the eyepiece base by unscrewing the ring:

3. Measure the internal diameter of the reticle holder (where the reticle sits on). You will see a small step or ridge inside the ring (red arrow points to that).

4. Now you can install a new reticle, while you carefully place the reticle on the ridge.

Microscope Micrometers /Eyepiece Reticles

Reticles / Eyepiece Micrometers

Microscope micrometers are commonly used for measuring or counting specimens. Eyepiece micrometers (also referred to as “reticles”) are small glass discs with markings on them. The micrometer is mounted in one of the two eyepieces and superimposes an image of the markings over the image of the specimen. Stage micrometers are slides with markings of a known dimension that, when viewed under the microscope, can be used to calibrate eyepiece micrometers.

Calibration

Since the size of the eyepiece micrometer image (e.g. a linear scale) appears the same even though the specimen can be magnified to a greater or lesser degree, the markings on the micrometer do not by themselves indicate any particular measurement. When a stage micrometer with known dimensions is viewed through an eyepiece micrometer, however, the measurement indicated by the eyepiece micrometer at that magnification can be noted and later used to make accurate measurements.microscope micrometer

Eyepiece Micrometers

Its diameter needs to be specified before order.
Normally it is 19mm or 20mm for biological microscope eyepiece, and d= 24mm or 25mm for stereo microscope eyepiece.

Models to choose:

Part #DescriptiondiametersPictureRef.
BR-C19

BR-C21

BR-C25

Cross-line reticle, 21mm diameter, 1mm thickness, 25 micron line width

Cross-line reticle

19

21

25

Reticles / Eyepiece MicrometersBI279

BI523

BI284

BR-L1021

BR-L1025

Linear scale, 10mm divided into 100 units21

25

Reticles / Eyepiece MicrometersBI255

BI506

BR-L0521

BR-L0525

Linear scale, 5mm divided into 100 units21

25

Reticles / Eyepiece MicrometersBI256

BI509

BR-G10021

BR-G10025

Counting grid, 10mm square divided into 100, 1mm squares21

25

 BI283/05

BI510

BR-G40025Counting grid, 10mm square divided into 400 0.5mm squares25BI524
BR-CG21

BR-CG25

Cross-line with 0.1 mm graduations21

25

 BI539

BI540

BR-T25Grain Sizing Reticle for Steel25Reticles / Eyepiece MicrometersBI738
BR-W19

BR-W21

Walton & Beckett reticle, 19 or 21 mm diameter19

21

BI254/05
SKU: Reticles Categories: ,

B. Reticles which can be customized. Minimum Order Quantity is 50.

– Price: variable.

– Its diameter needs to be specified its diameter before order. Normally it is 19mm or 20mm for biological microscope eyepiece, and 24mm or 25mm for stereo microscope eyepiece.

-We Can made it according to customer’s requirement.

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Meiji Techno Eyepiece Reticles, $59.00

5mm Diameter Micrometers for RZ Series 10x eyepieces
25mm Diameter Micrometers for EM Series 10x eyepieces
25mm Diameter Micrometers for MT5000, MT6000 Series 10x eyepieces
25mm Diameter Micrometers for TC5000, IM7000 Series 10x eyepieces

Part NumberDescription
MA523Cross-line reticle
MA506Linear scale, 10mm divided into 100 units
MA509Linear scale, 5mm divided into 100 units
MA510Counting grid, 10mm square divided into 100 1mm squares
MA524Counting grid, 10mm square divided into 400 0.5mm squares
MA542Cross-line with 0.1 mm graduations
MA738Grain Sizing Reticle for Steel

 

21mm Diameter Micrometers for ML2000, ML5000, ML7000, ML7500, ML8000, ML8500, MT4000 and MT9000 Series 10x eyepieces
 

Part NumberDescription
MA284Cross-line reticle, 21mm diameter, 1mm thickness, 25 micron line width
MA255Linear scale, 10mm divided into 100 units
MA256Linear scale, 5mm divided into 100 units
MA283/05Counting grid, 10mm square divided into 100 1mm squares
MA540Cross-line with 0.1 mm graduations
MA254/05Walton & Beckett reticle, 21 mm diameter

 

19mm Diameter Micrometers for RZ Series 15x and 20x eyepieces, and all TM200 and TM400 Series eyepieces
 

Part NumberDescription
MA279Cross-line reticle
MA223Linear scale, 0.5″ divided into 50 units
MA280Linear scale, 10mm divided into 100 units
MA281Linear scale, 5mm divided into 100 units
MA282Counting grid, 10mm square divided into 400 0.5mm squares
MA283Counting grid, 10mm square divided into 100 1.0mm squares
MA253Cross-line with dotted lines
MA539Cross-line with 0.1 mm graduations
MA254Walton & Beckett reticle

 

 

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 Cross-line reticle, 25mm diameter10mm divided into 100 units, 25 mm diameter5mm divided into 100 parts, 1.0 mm square, 25mm diameterfor grain sizing in steel, 25mm diameter metal stage micrometer, 0.01mm, for reflected light

 

3. Reticle in C-Mount

we offer an eyepiece C-Mount Adapter with eticle mount, for use with CMOS, CCD cameras or Tbalet Cameras. It is a great tool to have live measurments of your specimen with your zoom stereo microscopes.

1. BIX-R23-19-0.5x: Standard 0.5x C-Mount Adapter with 19 mm reticle mount, for use with 1/2″ or 1/1.8″ chip CCD cameras, $249.00

2. BI151/35/50:   Meiji Techno 0.5x C-Mount Adapter with 19 mm reticle mount, for use with 1/2″ or 1/1.8″ chip CCD cameras, $399.00

4. Filar Eyepice Reticles 

The Filar eyepiece micrometer is a combination of a focusing eyepiece and reticle, but features a moveable line rule. The Filar micrometer avoids the necessity to estimate fractions of a division on a stage micrometer which may render inaccurate readings.""The mobile line inside the micrometer is designed to cross the field of view, traversing a fixed scale, by means of a precision screw mechanism that is operated by rotating the external knob. In general measuring applications, a single line is aligned with one end of the specimen feature to be measured and a reading of the calibrated knob is noted.

Since installing the filar eyepiece on one side of a binocular head does not work well in practice, our MA414 includes a monocular head so that one can just quickly swap heads when measurement tasks are required.

 

""
MA414 Filar Eyepiece with Monocular HeadFor the MA414, the reticle scale has a travel distance of 8 millimeters.The knob of the micrometer screw is also divided into 100 intervals, so that one interval of the knob division corresponds to 0.1 interval of the eyepiece scale.One full rotation of the knob translates the measuring line across one interval of the eyepiece scale.
""
MA414Filar Micrometer Eyepiece with monocular head
""MA218 Filar Eyepiece
The eyepiece is available without the monocular head. It can be mounted to an eyetube with an I.D. greater than or equal to 23.2mm and an O.D. of up to 26mm.
""
MA218Filar Micrometer Eyepiece

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