Reticle diameters for common microscopes

Graticules Optics has compiled a list of eyepieces and microscope types from the major microscope manufacturers and listed alongside them the reticle sizes that fit them. Most of these eyepieces have some means of securing the reticle in position – always best to just check first before ordering the reticle. Graticules Optics offer a supply and fit service if you have any doubts.

Nikon

Eyepiece Reticle Diameter (mm) Model
C-W 10x B/22 (C-W 10X A/22) 25 SMZ series
C-W 15x /16 19 SMZ series
C-W 20x /12.5 19 SMZ series
C-W 30x /7 12 SMZ series
CFI 10x CFI 12.5x CFI 15x 27 -
CFI UW 10x 27 -
CFUW10X 27 -
CFW 10x CFW 15x 21 -
CFWE 15X/12 18 YS2
CFWN 8X CFWN 10x CFWN 15x 21 -
CFUWN 10X 27 -
CFUWN 15X n/a -
E1-CFI 10x E2-CFI 10x E2-CFI 15x 27 -
L-W10x ESD (FOV 22) 25 Eclipse LV150L
SME 10x /23 27 -
SME 15x - -
SME 20x 16 -
SME 20x/12 15.5 -
SME 10x /21 27 SMZ-10
SME 33x/5 10 -
SMZ U UW10x A/24 25 SMZ-U
SMZ U UW15x 25 SMZ-U
SMZ U UW20x 21 SMZ-U
SMZ U UW30x n/p SMZ-U
SMZ 10 E10xA 24 SMZ-10
SMZ 10 UW15x /17 27 SMZ-10
SMZ 10 UW20x n/a SMZ-10
SMZ 10 UW20x/15 27 -
CFPL2x 19 -
CFPL 2.5x 19 -
CFPL 4x 19 -
CFPL 5x 19 -
CFWE 10x 20 -

Olympus

Eyepiece Reticle Diameter (mm) Model
WHN10X / WHN10X -H 24 BX61 / BX51 / BX41 / CKX41
WH10X / WH10X -H / WH15X 24 BX50 / BX40
WHS10X-H / WHS15X-H 24 SZX7 / SZX9 / SZX12
WHSZ10X-H / WHSZ15X-H 24 SZ61
WHSZ20X-H / WHSZ30X-H 24 SZ61
CWH10X / CWH10X-H / CWH30X 24 CX41
WHB 10X/WHB 10X-H 20.4 CKX41 (May need reticle holder 20.4-RH from Olympus)
GSWH10X / GSWH10X-H 24 SZ60 / SZ40 / SZ11 / SD / SF
GSWH15X / GSWH15X-H 24 SZ60 / SZ40 / SZ11 / SD / SF
GSWH20X / GSWH20X-H 24 -
GSWH30X / GSWH30X-H 24 -
GW10X / GWH10X 24 SZ60 / SZ40 / SZ11 / SD / SF
WH12.5X / WH12.5X -H 24 -
GWH10X-D / GWH10X-CD 26 SZH / SZH10
SWHK8X 28 VANOX, and other
SWHK10X n/a -
G10X / G15X 22 -
WHK8X 20.4 20mm loose fitting alternative
WHK10X / WHK15X / NWHK10X 20.4 20mm loose fitting alternative
(*WHK10X-H cannot be installed) - -
NFK 2.5X/ 3.3X/ 5X/ 6.7X 20.4 20mm loose fitting alternative
PE 2.5X/ 3.3X/ 4X/ 5X 20.4 20mm loose fitting alternative
GWH15X-D / GWH15X-CD 20.4 -
G20X-H 20 -
GX-SLM Scale Slider 25.5 1.5mm thick reticle to fit into Olympusreticle mount
Superwide Eyepiece 28.5 -
CWHK10X / NCWHK10X / G20X 19 CK40 / CK30 / CH40 / CH30 / CH2
NFK20X 19 -

Leica

Eyepiece Reticle Diameter (mm) Model
11507808 (S10x/25Br.M) 26 DMR, DMIR, DML
11507807 (S10x/22B.M) 26 DMR, DMIR, DML
11507801 (10x/20Br.M) 26 DMR, DMIR, DML
11507802 (10x/20Br.M) 26 DMR, DMIR, DML
11506515 (12.5x/16Br.M) 26 DMR, DMIR, DML
13591005 (10x/18) 21 DME
13591010 (15x/14) 21 DME
527001 (10x/18 Spectacles M) 19 DM-IL
10447160 (10x/21B) 23 MX series / Z series
10445301 (16x/14B) 23 MX series / Z series
10445302 (25x/9.5B) 23 MX series / Z series
10445303 (40x/6B) 23 MX series / Z series
10450023 (10x/23B) 24.5 M205C / M165C
10450024 (16x /15B) 24.5 M205C / M165C
10450025 (25x/9.5B) 24.5 M205C / M165C
10450026 (40x/6B) 24.5 M205C / M165C
10 446 333 (10x/23,adjustable) 24.5 DM750 / S6 Series / S8APO
13 613 532 (10x/20, focusing) 24.5 DM500 / DM750
10 446 355 (16x/16,adjustable) 24.5 S6 Series / S8APO
10 446 357 (20x/12,adjustable) 24.5 S6 Series / S8APO
10 446 329 (10x/23B,adjust.f/eyeglasses) 24.5 S6 Series / S8APO
10 447 131 (10x/23,adjustable) 24.5 S6 Series / S8APO
10 447 133 (16x/16,adjustable) 24.5 S6 Series / S8APO / EZ Series
10 447 135 (20x/126,adjustable) 24.5 S6 Series / S8APO / EZ Series
10 447 137 (for eyeglasses10x/23B,adjustable) 24.5 S6 Series/S8APO
10 447 139 (for eyeglasses16x/15B,adjustable) 24.5 S6 Series/S8APO
10 445 302 (25x/9.5B,adjust.f/eyeglasses) 24.5 S6 Series/S8APO
10 445 303 (40x/6B,adjust.f/eyeglasses) 24.5 S6 Series/S8APO
10 447 280 (10x/20B,adjust.f/eyeglasses) 24.5 EZ Series
Leitz Wetzlar Periplan GF 10x/20M - Leitz code 518059
Leitz Wetzlar Periplan GF10x/18 21 Possibly Leitz code 519750

Zeiss

Eyepiece Reticle Diameter (mm) Model
E-PL 10x/20 Br. Foc 26 -
PL 10x/21 Br foc 26 -
PL 10x/23 Br. Foc 26 -
WF 10x/18, WF 10X/20 23 Primostar
PL16x/16 Br. Foc 21 -
W 25x/10 foc 21 -
PI 10x/20 [#44 40 31] 21 AxioScope
Kpl-W 10x/18 [#46 40 43-9902] 21 872e

Meiji Techno

Eyepiece Reticle Diameter (mm) Model
EM series 10x 25 -
IM7000 series 10x 25 -
ML2000 series 10x 21 -
ML5000 series 10x 21 -
ML7000 series 10x 21 -
ML8000 series 10x 21 -
ML8500 series 10x 21 -
MT4000 series 10x 21 -
MT5000 series 10x 25 -
MT6000 series 10x 25 -
MT9000 series 10x 21 -
RZ series 10x 25 -
RZ series 15x 19 -
RZ series 20X 19 -
TC5000 series 10x 25 -
TM200 all series 19 -
TM400 all series 19 -

Motic

Eyepiece Reticle Diameter (mm) Model
100FL 10x 21 -
100FLA 10x 21 -
100FLAQ 10x 21 -
B1-211 10x 21 -
B1-220 10x 21 -
B1-223 10x 21 -
M Series 10x 23 -
S-10-P 10x 23 -
S-20-2L 10x 23 -
SL-40-PB 10x 23 -
SMZ-140 10x 23 -
SMZ-143 10x 23 -
SMZ-168 10X 25 -
ST-30-2L 10x 23 -
ST-39 10x 23 -
N-WF10x/22 25 BA 410
N-WF10x/20 25 BA 210, BA 310
10x 24 AE 2000

Labomed

Eyepiece Reticle Diameter (mm) Model
Prefix 512, 312 or 913 21 -
Prefix 912, 414, 914 or 612 26 -
Prefix 123, 125 or 127 28 -

Cambridge Instruments

Eyepiece Reticle Diameter (mm) Model
31-16-01 / 5mm in 0.05mm divisions 21 -
31-16-02 / 10mm in 0.1mm divisions 21 -
31-16-04 / Scaled to measure 0.001′′ 21 -
31-16-05 / 5mm in 0.05mm divisions 21 -
31-16-07 / Each least division 0.005mm @ 1x objective power 21 -
31-16-08 / Scaled to measure 0.001′′ at 3x mag 21 -
31-16-09 / Micro Disc 21 -
31-16-11 / 10 x 10 grid of 0.5mm squares 21 -
31-16-12 / 10 x 10 grid of 1mm OR squares 21 -
31-16-71 / 10 x 10 grid of 1mm squares 21 -
31-16-30 / Crossline, 0.080mm line width 21 -
31-16-42 / Scaled to measure 0.001′′ at 3x mag 21 -
31-16-43 / 100 divisions of 0.1mm 21 -
31-16-44 / Scaled to measure 0.01mm at 7x mag 21 -
31-16-45 / Grid of 64 squares 21 -
31-16-46 / Protractor reticle, 180 deg 21 -
31-16-47 / General purpose reticle 21 -
31-16-87 / Stage micrometer ruled to 0.005′′ 21 -
31-16-89 / Stage micrometer ruled to 0.001′′ 21 -
31-16-90 / Stage micrometer ruled to 0.01mm 21 -
31-16-99 / Stage micrometer ruled to 0.01mm 21 -
31-16-35 / Micrometer scale 0.001′′ 21 -

Unitron

Eyepiece Reticle Diameter (mm) Model
MEC2 // WF10X/20mm 26 Unitron MEC2 Microscope

Euromex

Eyepiece Reticle Diameter (mm) Model
WF10X/18 19 Novex B

Optika

Eyepiece Reticle Diameter (mm) Model
- 21 Optika B-380
(EW10x20) 21 Optika B-383
- 24 Optika B500
- 26 Optika XDS-2
- 24 Optika XDS-3
- 24 Optika SZM
- 24 Optika B-800
(For a 22mm eyepiece ) 24 Optika B-1000