| WHN10X / WHN10X -H | 
24 | 
BX61 / BX51 / BX41 / CKX41 / BX43 | 
| 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 | 
- |