Filed of View for major eyepiece models
Nikon Eyepieces
Eyepiece model FOV
8 x
CFWN 8x 20
10 x
C-W 10x B 22
CFI 10x@ 22
CFI E 10x 20
CFI UW 10x 25
CFWN 10x 20
E1-CFI 10x@ 18
SME 10x 21
SME 10xA 23
Z445 E10xB 21
YS-CF 10x 18
AZ-W 10x 22
SMZ U UW10x A 24
L-W 10x ESD 22
12.5 x
CFI 12.5x 16
15 x
C-W 15x 16
CFI 15x 14.5
CFI E 15x 12
CFWN 15x 14
SME 15xA 14
Z445 E15xB 14
YS-CF 15x 12
20 x
C-W 20x 12.5
SME 20xA 12
Z445 E20xB 12
30 x
C-W 30x 7
 
Olympus Eyepieces
Eyepiece model FOV
10 x
WHN10x 22
WH10x / WH10x -H 22
WHK 10x 20
GSWH10x / GSWH10x-H 22
WHB 10x 20
SWH 10x-H 26.5
CWHK10x 18
NCWHK 10x 18
12.5 x
WH12.5x / WH12.5x -H 16
15 x
WH15x 14
GSWH15x / GSWH15x-H 16
GWH15x 16
20 x
GSWH20x / GSWH20x-H 12.5
30 x
GSWH30x / GSWH30x-H 7