Eyepiece Transmission Survey

Light Transmission for 3 or 4 Lens Eyepieces
Eyepiece
450nm
500nm
550nm
600nm
650nm
max transmission
Zeiss 25mm 54°
96.48%
98.17%
98.36%
98.22%
97.48%
98.41% at 542nm
Zeiss Abbe 6mm
93.46%
95.77%
96.20%
96.15%
95.17%
96.40% at 544nm
Pentax Ortho 6mm
95.61%
96.52%
97.34%
97.86%
97.87%
98.23% at 616nm
Clave 6mm
94.44%
97.26%
97.52%
97.77%
98.09%
98.31% at 622nm
Synta Plossl 6.3mm
92.93%
94.96%
95.52%
96.07%
96.30%
96.37% at 642nm
Pentax Ortho 7mm
92.84%
94.94%
96.67%
97.39%
96.91%
97.52% at 606nm
Kasai Ortho 7mm
94.38%
95.46%
95.47%
95.46%
94.89%
95.56% at 604nm
Zeiss Abbe 10mm
94.51%
95.96%
96.77%
97.25%
96.67%
97.79% at 550nm
Kasai Ortho 9mm
94.37%
96.17%
96.17%
96.72%
96.68%
96.90% at 574nm
NIKON 12.5mm
87.79%
93.35%
95.34%
95.37%
94.61%
95.72% at 574nm
Synta Plossl 10mm
88.42%
91.87%
93.44%
94.48%
94.58%
94.73% at 618nm
Zeiss Abbe 16mm
92.39%
96.00%
97.34%
97.11%
96.32%
97.34% at 550nm
Pentax Ortho 18mm
93.30%
94.92%
96.70%
97.95%
98.34%
98.42% at 628nm
TeleVue Plossl 20mm
96.48%
97.38%
98.02%
98.81%
95.94%
98.88% at 598nm
Synta Plossl 20mm
88.43%
92.70%
94.37%
95.36%
96.19%
96.37% at 682nm
Zeiss Abbe 25mm
94.80%
97.28%
97.97%
98.22%
97.72%
98.36% at 576nm
Kasai Ortho 25mm
92.37%
95.59%
96.21%
96.48%
96.14%
96.67% at 576nm
NIKON 25mm
92.20%
95.20%
96.26%
95.65%
95.35%
96.40% at 570nm
Zeiss Abbe 34mm
95.27%
97.97%
97.97%
98.32%
97.96%
98.50% at 544nm
Kasai Ortho 25mm
92.37%
95.59%
96.21%
96.48 %
96.14%
96.67% at 576nm

Light Transmission for 5 Lens Eyepieces
Eyepiece
450nm
500nm
550nm
600nm
650nm
max transmission
Tak LE 5mm
89.03%
92.88%
93.15%
93.85%
93.30%
94.06% at 620nm
Tak LE 7.5mm
90.15%
92.30%
92.69%
94.32%
94.05%
94.54% at 610nm
Tak LE 12.5mm
92.14%
94.01%
95.19%
96.40%
94.72%
96.60% at 610nm
Olympus 12.5mm
86.71%
92.93%
95.45%
95.36%
94.25%
95.88% at 576nm
INTES MICRO 12mm
85.84%
91.25%
91.47%
89.59%
87.45%
91.90% at 574nm
Zeiss 16mm 62°
89.70%
93.19%
93.93%
92.83%
91.39%
93.96% at 542nm
INTES MICRO 21mm
85.24%
90.49%
93.14%
93.50%
92.84%
93.71% at 574nm
Tak LE 24mm
94.17%
96.12%
96.51%
96.23%
94.52%
96.67% at 564nm

Light Transmission for Zoom Eyepieces
Eyepiece
450nm
500nm
550nm
600nm
650nm
max transmission
TeleVue 3-6
90.70%
94.53%
96.05%
96.11%
96.10%
96.50% at 612nm
Leica 7-22
91.87%
93.94%
93.84%
93.71%
91.78%
94.04% at 592nm
Zeiss 8-25
87.51%
91.33%
94.21%
95.15%
92.62%
95.23% at 592nm
NIKON 7-21
91.87%
94.50%
94.58%
96.35%
96.96%
96.99% at 638nm

Light Transmission for Wide Field Eyepieces
Eyepiece
450nm
500nm
550nm
600nm
650nm
max transmission
NIKON 17mm 72°
92.31%
92.52%
93.42%
95.54%
96.19%
96.41% at 640nm
Zeiss 16.7mm 69°
87.90%
92.86%
95.93%
96.70%
94.41%
96.97% at 588nm
TeleVue Pan 15
83.93%
89.73%
90.47%
91.55%
92.21%
92.58% at 618nm
TV Radian 18
90.39%
94.10%
94.91%
96.78%
96.34%
97.36% at 622nm
TV Radian 14
87.58%
92.63%
93.75%
94.87%
92.65%
95.71% at 578nm
NIKON 14mm 72°
89.48%
92.41%
93.68%
95.19%
94.57%
95.47% at 622nm
Zeiss 12.5mm 69°
87.97%
93.48%
95.75%
96.72%
95.59%
97.79% at 602nm
TV Radian 10
86.52%
92.23%
93.53%
95.30%
95.09%
95.65% at 634nm
TV Radian 6
84.21%
87.22%
89.47%
92.20%
90.63%
92.44% at 606nm
TV Radian 4
84.77%
88.98%
91.33%
92.95%
91.31%
93.34% at 616nm
TV Radian 3
84.99%
88.01%
91.06%
92.17%
89.33%
92.32% at 592nm
TV Nagler 16-T5
93.48%
93.53%
94.32%
96.48%
95.71%
96.71% at 618nm
Meade 6.7 UWA
78.50%
85.86%
89.86%
91.25%
90.57%
91.25% at 600nm
TV Nagler 4.8
87.76%
91.37%
91.52%
94.58%
95.83%
95.90% at 640nm

 

Light Transmission for Assorted Eyepieces
Eyepiece
350nm
400nm
450nm
500nm
550nm
600nm
650nm
700nm
750nm
800nm
max
Zeiss WPL 16x10
0.13%
76.9%
86.6%
91.5%
93.22%
92.69%
91.60%
90.29%
88.60%
87.23%
548 93.3%
Zeiss WPL 10x/23
0.01%
85.62%
96.84%
98.17%
98.36%
98.22%
97.48%
95.5%
91.60%
87.13%
542 98.41%
Zeiss PL 16x/16
0.20%
81.12%
89.70%
93.19%
93.93%
92.83%
91.39%
90.17%
88.28%
86.97
Zeiss PL 10x/25
0.12%
81.39%
91.32%
95.00%
95.80%
95.31%
93.98%
92.86%
91.12%
89.94%
542 95.96%
Zeiss A-6
14.49%
90.00%
93.46%
95.77%
96.20%
96.15%
95.17%
93.53%
90.33%
87.56%
544 96.42%
Zeiss A-34
28.38%
90.02%
95.27%
97.97%
97.97%
98.32%
97.96%
96.76%
95.16%
93.86%
544 98.50%
Zeiss A-25
41.81%
91.87%
94.80%
97.28%
97.97%
98.22%
97.72%
96.39%
93.61%
90.78%
576 98.36%
Zeiss A-16
14.01%
83.60%
92.39%
96.00%
97.34%
97.11%
96.32%
94.91%
92.97%
91.55%
550 97.34%
Zeiss A-10
59.00%
89.86%
94.51%
95.96%
96.77%
97.25%
96.67%
95.10%
92.30%
89.12
546 97.79%
Zeiss 20-60 Zoom
0.00%
62.74%
87.51%
91.33%
94.21%
95.15%
92.62%
86.74%
79.24%
71.57%
592 95.23%
Zeiss 20-60 Zoom
0.00%
66.76%
87.90%
92.86%
95.83%
69.70%
94.41%
88.96%
81.56%
73.98%
588 96.97%
Leica Zoom
0.00%
81.89%
91.87%
93.94%
93.84%
93.71%
91.78%
85.70%
75.60%
64.97%
592 94.04%
Pentax O-18
0.77%
82.46%
93.30%
94.92%
96.70%
97.95%
98.34%
96.99%
94.43%
91.42%
628 98.42%
Pentax O-6
23.83%
91.34%
95.61%
96.52%
97.34%
97.86%
97.87%
96.55%
93.61%
90.32%
916 98.23%
Clave 6mm
29.55%
75.21%
94.44%
97.26%
97.52%
97.77%
98.09%
97.14%
94.20%
89.76%
622 98.31%
Olympus 12.5mm
0.00%
96.15%
86.71%
92.93%
95.45%
95.36%
94.25%
92.19%
91.605
90.08%
576 95.88%
Olympus 8.3mm
0.35%
72.76%
82.72%
87.78%
90.31%
90.84%
90.28%
89.90%
88.89%
87.33%
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
14.53%
63.57%
85.84%
91.25%
91.47%
89.59%
87.45%
85.97%
84.67%
83.39%
522 91.9%
Intes Micro 21mm70
26.72%
72.14%
85.24%
90.49%
93.14%
93.50%
92.84%
92.00%
91.36%
90.01%
574 93.71%
Kasai OR 7
55.04%
83.93%
94.38%
95.64%
95.47%
95.46%
94.89%
93.87%
92.12%
90.22%
604 95.56%
Kasai OR 9
55.68%
86.78%
94.37%
96.17%
96.72%
96.68%
96.19%
95.41%
94.33%
92.71%
574 96.90%
Kasai OR25
47.84%
85.60%
92.73%
95.59%
96.21%
96.48%
96.14%
95.30%
93.57%
92.11%
576 96.77%