Eyepiece Transmission Survey
Light Transmission for 3 or 4 Lens Eyepieces
Eyepiece
Zeiss 25mm 54°
Zeiss Abbe 6mm
Pentax Ortho 6mm
Clave 6mm
Synta Plossl 6.3mm
Pentax Ortho 7mm
Kasai Ortho 7mm
Zeiss Abbe 10mm
Kasai Ortho 9mm
NIKON 12.5mm
Synta Plossl 10mm
Zeiss Abbe 16mm
Pentax Ortho 18mm
TeleVue Plossl 20mm
Synta Plossl 20mm
Zeiss Abbe 25mm
Kasai Ortho 25mm
NIKON 25mm
Zeiss Abbe 34mm
Kasai Ortho 25mm
450nm
96.48%
93.46%
95.61%
94.44%
92.93%
92.84%
94.38%
94.51%
94.37%
87.79%
88.42%
92.39%
93.30%
96.48%
88.43%
94.80%
92.37%
92.20%
95.27%
92.37%
500nm
98.17%
95.77%
96.52%
97.26%
94.96%
94.94%
95.46%
95.96%
96.17%
93.35%
91.87%
96.00%
94.92%
97.38%
92.70%
97.28%
95.59%
95.20%
97.97%
95.59%
550nm
98.36%
96.20%
97.34%
97.52%
95.52%
96.67%
95.47%
96.77%
96.17%
95.34%
93.44%
97.34%
96.70%
98.02%
94.37%
97.97%
96.21%
96.26%
97.97%
96.21%
600nm
98.22%
96.15%
97.86%
97.77%
96.07%
97.39%
95.46%
97.25%
96.72%
95.37%
94.48%
97.11%
97.95%
98.81%
95.36%
98.22%
96.48%
95.65%
98.32%
96.48 %
650nm
97.48%
95.17%
97.87%
98.09%
96.30%
96.91%
94.89%
96.67%
96.68%
94.61%
94.58%
96.32%
98.34%
95.94%
96.19%
97.72%
96.14%
95.35%
97.96%
96.14%
max transmission
98.41% at 542nm
96.40% at 544nm
98.23% at 616nm
98.31% at 622nm
96.37% at 642nm
97.52% at 606nm
95.56% at 604nm
97.79% at 550nm
96.90% at 574nm
95.72% at 574nm
94.73% at 618nm
97.34% at 550nm
98.42% at 628nm
98.88% at 598nm
96.37% at 682nm
98.36% at 576nm
96.67% at 576nm
96.40% at 570nm
98.50% at 544nm
96.67% at 576nm
Light Transmission for 5 Lens Eyepieces
Eyepiece
450nm
500nm
550nm
600nm
650nm
max transmission
Tak LE 5mm
Tak LE 7.5mm
Tak LE 12.5mm
Olympus 12.5mm
INTES MICRO 12mm
Zeiss 16mm 62°
INTES MICRO 21mm
Tak LE 24mm
89.03%
90.15%
92.14%
86.71%
85.84%
89.70%
85.24%
94.17%
92.88%
92.30%
94.01%
92.93%
91.25%
93.19%
90.49%
96.12%
93.15%
92.69%
95.19%
95.45%
91.47%
93.93%
93.14%
96.51%
93.85%
94.32%
96.40%
95.36%
89.59%
92.83%
93.50%
96.23%
93.30%
94.05%
94.72%
94.25%
87.45%
91.39%
92.84%
94.52%
94.06% at 620nm
94.54% at 610nm
96.60% at 610nm
95.88% at 576nm
91.90% at 574nm
93.96% at 542nm
93.71% at 574nm
96.67% at 564nm
Light Transmission for Zoom Eyepieces
Eyepiece
TeleVue 3-6
Leica 7-22
Zeiss 8-25
NIKON 7-21
450nm
90.70%
91.87%
87.51%
91.87%
500nm
94.53%
93.94%
91.33%
94.50%
550nm
96.05%
93.84%
94.21%
94.58%
600nm
96.11%
93.71%
95.15%
96.35%
650nm
96.10%
91.78%
92.62%
96.96%
max transmission
96.50% at 612nm
94.04% at 592nm
95.23% at 592nm
96.99% at 638nm
Light Transmission for Wide Field Eyepieces
Eyepiece
NIKON 17mm 72°
Zeiss 16.7mm 69°
TeleVue Pan 15
TV Radian 18
TV Radian 14
NIKON 14mm 72°
Zeiss 12.5mm 69°
450nm
92.31%
87.90%
83.93%
90.39%
87.58%
89.48%
87.97%
500nm
92.52%
92.86%
89.73%
94.10%
92.63%
92.41%
93.48%
550nm
93.42%
95.93%
90.47%
94.91%
93.75%
93.68%
95.75%
600nm
95.54%
96.70%
91.55%
96.78%
94.87%
95.19%
96.72%
650nm
96.19%
94.41%
92.21%
96.34%
92.65%
94.57%
95.59%
max transmission
96.41% at 640nm
96.97% at 588nm
92.58% at 618nm
97.36% at 622nm
95.71% at 578nm
95.47% at 622nm
97.79% at 602nm
TV Radian 10
TV Radian 6
TV Radian 4
TV Radian 3
TV Nagler 16-T5
Meade 6.7 UWA
TV Nagler 4.8
86.52%
84.21%
84.77%
84.99%
93.48%
78.50%
87.76%
92.23%
87.22%
88.98%
88.01%
93.53%
85.86%
91.37%
93.53%
89.47%
91.33%
91.06%
94.32%
89.86%
91.52%
95.30%
92.20%
92.95%
92.17%
96.48%
91.25%
94.58%
95.09%
90.63%
91.31%
89.33%
95.71%
90.57%
95.83%
95.65% at 634nm
92.44% at 606nm
93.34% at 616nm
92.32% at 592nm
96.71% at 618nm
91.25% at 600nm
95.90% at 640nm
Light Transmission for Assorted Eyepieces
Eyepiece
Zeiss WPL 16x10
Zeiss WPL 10x/23
Zeiss PL 16x/16
Zeiss PL 10x/25
Zeiss A-6
Zeiss A-34
Zeiss A-25
Zeiss A-16
Zeiss A-10
Zeiss 20-60 Zoom
Zeiss 20-60 Zoom
Leica Zoom
Pentax O-18
Pentax O-6
Clave 6mm
Olympus 12.5mm
Olympus 8.3mm
350nm
0.13%
0.01%
0.20%
0.12%
14.49%
28.38%
41.81%
14.01%
59.00%
0.00%
0.00%
0.00%
0.77%
23.83%
29.55%
0.00%
0.35%
400nm
76.9%
85.62%
81.12%
81.39%
90.00%
90.02%
91.87%
83.60%
89.86%
62.74%
66.76%
81.89%
82.46%
91.34%
75.21%
96.15%
72.76%
450nm
86.6%
96.84%
89.70%
91.32%
93.46%
95.27%
94.80%
92.39%
94.51%
87.51%
87.90%
91.87%
93.30%
95.61%
94.44%
86.71%
82.72%
500nm
91.5%
98.17%
93.19%
95.00%
95.77%
97.97%
97.28%
96.00%
95.96%
91.33%
92.86%
93.94%
94.92%
96.52%
97.26%
92.93%
87.78%
550nm
93.22%
98.36%
93.93%
95.80%
96.20%
97.97%
97.97%
97.34%
96.77%
94.21%
95.83%
93.84%
96.70%
97.34%
97.52%
95.45%
90.31%
600nm
92.69%
98.22%
92.83%
95.31%
96.15%
98.32%
98.22%
97.11%
97.25%
95.15%
69.70%
93.71%
97.95%
97.86%
97.77%
95.36%
90.84%
650nm
91.60%
97.48%
91.39%
93.98%
95.17%
97.96%
97.72%
96.32%
96.67%
92.62%
94.41%
91.78%
98.34%
97.87%
98.09%
94.25%
90.28%
700nm
90.29%
95.5%
90.17%
92.86%
93.53%
96.76%
96.39%
94.91%
95.10%
86.74%
88.96%
85.70%
96.99%
96.55%
97.14%
92.19%
89.90%
750nm
88.60%
91.60%
88.28%
91.12%
90.33%
95.16%
93.61%
92.97%
92.30%
79.24%
81.56%
75.60%
94.43%
93.61%
94.20%
91.605
88.89%
800nm
87.23%
87.13%
86.97
89.94%
87.56%
93.86%
90.78%
91.55%
89.12
71.57%
73.98%
64.97%
91.42%
90.32%
89.76%
90.08%
87.33%
max
548 93.3%
542 98.41%
542 95.96%
544 96.42%
544 98.50%
576 98.36%
550 97.34%
546 97.79%
592 95.23%
588 96.97%
592 94.04%
628 98.42%
916 98.23%
622 98.31%
576 95.88%
576 90.9%
Meade 6.7 USA
18.02% 64.84% 78.50%
85.86% 89.86% 91.25% 90.57%
89.06%
86.57%
83.88%
600 91.25%
Intes Micro 12mm70
Intes Micro 21mm70
Kasai OR 7
Kasai OR 9
Kasai OR25
14.53%
26.72%
55.04%
55.68%
47.84%
91.25%
90.49%
95.64%
96.17%
95.59%
85.97%
92.00%
93.87%
95.41%
95.30%
84.67%
91.36%
92.12%
94.33%
93.57%
83.39%
90.01%
90.22%
92.71%
92.11%
522 91.9%
574 93.71%
604 95.56%
574 96.90%
576 96.77%
63.57%
72.14%
83.93%
86.78%
85.60%
85.84%
85.24%
94.38%
94.37%
92.73%
91.47%
93.14%
95.47%
96.72%
96.21%
89.59%
93.50%
95.46%
96.68%
96.48%
87.45%
92.84%
94.89%
96.19%
96.14%