|
Telescope Eyepiece Specifications by Manufacturer |
My intent is to make this table as complete as possible; however, I have generally chosen not to include economy eyepieces such as Super Modified Achromats (SMA) or eyepieces with 0.96" barrels. Your comments are welcome.
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Key to street prices: |
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A |
<$50 |
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B |
$ 50 -- $100 |
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C |
$101 -- $200 |
|
D |
$201 -- $300 |
|
E |
$301 -- $400 |
|
F |
>$400 |
|
Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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Celestron Plossl 6.3mm |
1.25" |
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Plossl |
Yes |
5mm |
|
52 |
4 |
A |
Manuf. |
10/97 |
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Celestron Plossl 7.5mm |
1.25" |
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Plossl |
Yes |
5mm |
|
52 |
4 |
A |
Manuf. |
10/97 |
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Celestron Plossl 10mm |
1.25" |
|
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Plossl |
Yes |
7mm |
|
52 |
4 |
A |
Manuf. |
10/97 |
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Celestron Plossl 12.5mm |
1.25" |
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Plossl |
Yes |
8mm |
|
52 |
4 |
A |
Manuf. |
10/97 |
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Celestron Plossl 17mm |
1.25" |
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Plossl |
Yes |
13mm |
|
52 |
4 |
A |
Manuf. |
10/97 |
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Celestron Plossl 20mm |
1.25" |
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Plossl |
Yes |
20mm |
|
52 |
4 |
A |
Manuf. |
01/01 |
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Celestron Plossl 26mm |
1.25" |
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Plossl |
Yes |
22mm |
|
50 |
4 |
A |
Manuf. |
01/01 |
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Celestron Plossl 32mm |
1.25" |
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Plossl |
Yes |
22mm |
|
52 |
4 |
A |
Manuf. |
01/01 |
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Celestron Plossl 40mm |
1.25" |
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Plossl |
Yes |
31mm |
|
46 |
4 |
A |
Manuf. |
01/01 |
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Ultima 5mm |
1.25" |
|
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Hybrid |
Yes |
4mm |
|
50 |
4-7 |
B |
Manuf. |
10/97 |
|
Ultima 7.5mm |
1.25" |
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Hybrid |
Yes |
5mm |
|
51 |
4-7 |
B |
Manuf. |
10/97 |
|
Ultima 12.5mm |
1.25" |
|
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Hybrid |
Yes |
9mm |
|
51 |
4-7 |
B |
Manuf. |
10/97 |
|
Ultima 18mm |
1.25" |
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Hybrid |
Yes |
13mm |
|
51 |
4-7 |
B |
Manuf. |
10/97 |
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Ultima 24mm |
1.25" |
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Hybrid |
Yes |
18mm |
|
51 |
4-7 |
B |
Manuf. |
10/97 |
|
Ultima 30mm |
1.25" |
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Hybrid |
Yes |
21mm |
|
50 |
4-7 |
B |
Manuf. |
10/97 |
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Ultima 35mm |
1.25" |
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Hybrid |
No |
25mm |
|
49 |
4-7 |
C |
Manuf. |
10/97 |
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Ultima 42mm |
1.25" |
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Hybrid |
No |
32mm |
|
36 |
4-7 |
C |
Manuf. |
10/97 |
|
Celestron Zoom 6.5-18mm |
1.25" |
|
|
140g |
|
No |
11mm |
|
60.5-38.5 |
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C |
Manuf. |
10/97 |
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Celestron Micro Guide 12.5mm |
1.25" |
52mm |
33mm |
140g |
Ortho |
No |
11mm |
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C |
Note 1 |
10/97 |
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Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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Clave (Kinoptik) |
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Clave Plossl 3mm |
1.25" |
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Plossl |
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2.7mm |
48 |
4 |
E |
Distrib. |
02/00 |
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Clave Plossl 4mm |
1.25" |
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Plossl |
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3.6mm |
48 |
4 |
E |
Distrib. |
02/00 |
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Clave Plossl 5mm |
1.25" |
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Plossl |
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4.4mm |
48 |
4 |
E |
Distrib. |
02/00 |
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Clave Plossl 6mm |
1.25" |
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Plossl |
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5.3mm |
48 |
4 |
E |
Distrib. |
02/00 |
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Clave Plossl 8mm |
1.25" |
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Plossl |
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7.1mm |
48 |
4 |
E |
Distrib. |
02/00 |
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Clave Plossl 10mm |
1.25" |
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Plossl |
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8.9mm |
48 |
4 |
E |
Distrib. |
02/00 |
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Clave Plossl 12mm |
1.25" |
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Plossl |
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10.7mm |
48 |
4 |
E |
Distrib. |
02/00 |
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Clave Plossl 16mm |
1.25" |
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Plossl |
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14.2mm |
48 |
4 |
D |
Distrib. |
02/00 |
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Clave Plossl 20mm |
1.25" |
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Plossl |
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17.8mm |
48 |
4 |
D |
Distrib. |
02/00 |
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Clave Plossl 25mm |
1.25" |
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Plossl |
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22.3mm |
48 |
4 |
D |
Distrib. |
02/00 |
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Clave Plossl 30mm |
1.25" |
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Plossl |
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26.8mm |
48 |
4 |
E |
Distrib. |
02/00 |
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Clave Plossl 35mm |
1.25" |
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Plossl |
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26.8mm |
42 |
4 |
E |
Distrib. |
02/00 |
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Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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I 3 Piece 25mm |
1.25" |
4.5" |
2.9" |
468g |
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38mm |
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35 |
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F |
Manuf., Note 4 |
6/98 |
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Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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RKE 8mm |
1.25" |
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Kellner |
No |
8.2mm |
6.6mm |
45 |
3 |
A |
Manuf. |
10/97 |
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RKE 12mm |
1.25" |
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Kellner |
No |
10.7mm |
9.7mm |
45 |
3 |
A |
Manuf. |
10/97 |
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RKE 15mm |
1.25" |
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Kellner |
No |
13.4mm |
11.9mm |
45 |
3 |
A |
Manuf. |
10/97 |
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RKE 21mm |
1.25" |
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Kellner |
No |
18.8mm |
17.3mm |
45 |
3 |
A |
Manuf. |
10/97 |
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RKE 28mm |
1.25" |
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Kellner |
No |
24.5mm |
13.3mm |
45 |
3 |
A |
Manuf. |
10/97 |
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Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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Meade Plossl 5mm |
1.25" |
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Plossl |
Yes |
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|
50 |
4 |
A |
Manuf. |
10/97 |
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Meade Plossl 6.7mm |
1.25" |
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Plossl |
Yes |
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50 |
4 |
A |
Manuf. |
10/97 |
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Meade Plossl 9.5mm |
1.25" |
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Plossl |
Yes |
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50 |
4 |
A |
Manuf. |
10/97 |
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Meade Plossl 16mm |
1.25" |
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Plossl |
Yes |
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|
50 |
4 |
A |
Manuf. |
10/97 |
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Meade Plossl 25mm |
1.25" |
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Plossl |
Yes |
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|
50 |
4 |
A |
Manuf. |
10/97 |
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Meade Plossl 40mm |
1.25" |
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Plossl |
No |
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44 |
4 |
B |
Manuf. |
10/97 |
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Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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Super Plossl 6.4mm |
1.25" |
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Plossl |
Yes |
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52 |
4 |
B |
Manuf. |
10/97 |
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Super Plossl 9.7mm |
1.25" |
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Plossl |
Yes |
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52 |
4 |
B |
Manuf. |
10/97 |
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Super Plossl 12.4mm |
1.25" |
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Plossl |
Yes |
|
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52 |
4 |
B |
Manuf. |
10/97 |
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Super Plossl 15mm |
1.25" |
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Plossl |
Yes |
|
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52 |
4 |
B |
Manuf. |
10/97 |
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Super Plossl 20mm |
1.25" |
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Plossl |
Yes |
|
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52 |
4 |
B |
Manuf. |
10/97 |
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Super Plossl 26mm |
1.25" |
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Plossl |
Yes |
|
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52 |
4 |
B |
Manuf. |
10/97 |
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Super Plossl 32mm |
1.25" |
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Plossl |
Yes |
|
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52 |
4 |
B |
Manuf. |
10/97 |
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Super Plossl 40mm |
1.25" |
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Plossl |
No |
|
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44 |
4 |
B |
Manuf. |
10/97 |
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Super Plossl 56mm |
2" |
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Plossl |
No |
|
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52 |
4 |
C |
Manuf. |
10/97 |
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Super Wide Angle 13.8mm |
1.25" |
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Yes |
|
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67 |
6 |
C |
Manuf. |
10/97 |
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Super Wide Angle 18mm |
1.25" |
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Yes |
|
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67 |
6 |
C |
Manuf. |
10/97 |
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Super Wide Angle 24.5mm |
1.25" |
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Yes |
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67 |
6 |
C |
Manuf. |
10/97 |
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Super Wide Angle 32mm |
2" |
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No |
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67 |
6 |
D |
Manuf. |
10/97 |
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Super Wide Angle 40mm |
2" |
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No |
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67 |
6 |
D |
Manuf. |
10/97 |
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Ultra Wide Angle 4.7mm |
1.25" |
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Yes |
|
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84 |
8 |
C |
Manuf. |
10/97 |
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Ultra Wide Angle 6.7mm |
1.25" |
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Yes |
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84 |
8 |
C |
Manuf. |
10/97 |
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Ultra Wide Angle 8.8mm |
1.25"/2" |
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Yes |
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84 |
8 |
D |
Manuf. |
10/97 |
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Ultra Wide Angle 14mm |
1.25"/2" |
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No |
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84 |
8 |
D |
Manuf. |
10/97 |
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Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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SMC XL 5.2mm |
1.25" |
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20mm |
|
65 |
5-7 |
E |
Dealer |
10/97 |
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SMC XL 7mm |
1.25" |
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20mm |
|
65 |
5-7 |
D |
Dealer |
10/97 |
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SMC XL 10.5mm |
1.25" |
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20mm |
|
65 |
5-7 |
D |
Dealer |
10/97 |
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SMC XL 14mm |
1.25" |
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20mm |
|
65 |
5-7 |
D |
Dealer |
10/97 |
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SMC XL 21mm |
1.25" |
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20mm |
|
65 |
5-7 |
D |
Dealer |
10/97 |
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SMC XL 28mm |
1.25" |
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20mm |
|
55 |
5-7 |
D |
Dealer |
1/99 |
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SMC XL 40mm |
2" |
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20mm |
|
65 |
5-7 |
E |
Dealer |
10/97 |
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Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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Speers-Waler |
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SW 5-8 4.9-7.9mm |
1.25" |
5.75"-7.75" |
|
570g |
|
|
10.7-12.1mm |
|
89-80.7 |
|
D |
Dealer |
6/98 |
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SW 7 7.3mm |
1.25" |
|
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|
|
|
83.7 |
|
C |
Dealer |
6/98 |
|
SW 10 9.3mm |
1.25" |
5.75" |
|
360g |
|
|
16.4mm |
|
70 |
|
C |
Dealer |
6/98 |
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SW 12 12mm |
1.25" |
|
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80.1 |
|
C |
Dealer |
6/98 |
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SW 14 14.2mm |
1.25" |
5.75" |
|
360g |
|
|
14.7mm |
|
73.1 |
|
C |
Dealer |
6/98 |
|
SW 18 18.9mm |
1.25" |
5.75" |
|
360g |
|
|
13.2mm |
|
73.9 |
|
C |
Dealer |
6/98 |
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SW 24 24.7mm |
1.25" |
|
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|
|
|
13.3mm |
|
67 |
|
C |
Dealer |
6/98 |
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SW 30 30.1mm |
2" |
|
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|
|
|
15.7mm |
|
67.7 |
|
C |
Dealer |
6/98 |
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Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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Takahashi LE-5 5mm |
1.25" |
|
|
130g |
|
Yes |
|
|
52 |
|
C |
Manuf. |
10/97 |
|
Takahashi LE-7.5 7.5mm |
1.25" |
|
|
115g |
|
Yes |
|
|
52 |
|
C |
Manuf. |
10/97 |
|
Takahashi LE-12.5 12.5mm |
1.25" |
|
|
100g |
|
Yes |
|
|
52 |
|
C |
Manuf. |
10/97 |
|
Takahashi LE-18 18mm |
1.25" |
|
|
125g |
|
Yes |
|
|
52 |
|
C |
Manuf. |
10/97 |
|
Takahashi LE-24 24mm |
1.25" |
|
|
150g |
|
Yes |
|
|
52 |
|
C |
Manuf. |
10/97 |
|
Takahashi LE-30 30mm |
1.25" |
|
|
170g |
|
Yes |
|
|
52 |
|
D |
Manuf. |
10/97 |
|
Takahashi LE-50 50mm |
2" |
|
|
570g |
|
Yes |
|
|
50 |
|
E |
Manuf. |
10/97 |
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Eyepiece |
Barrel |
Len. |
Dia. |
Wt. |
Design |
Parfocal |
Eye Relief |
Field Stop |
Apparent Field (degrees) |
# of Elements |
Street Price Range |
Source of Info, Notes |
Date of Info |
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Tele Vue Plossl 8mm |
1.25" |
33mm |
36mm |
45g |
Plossl |
B |
6mm |
6.5mm |
50 |
4 |
B |
Manuf. |
10/97 |
|
Tele Vue Plossl 11mm |
1.25" |
36mm |
36mm |
45g |
Plossl |
B |
8mm |
9.1mm |
50 |
4 |
B |
Manuf. |
10/97 |
|
Tele Vue Plossl 15mm |
1.25" |
46mm |
33mm |
90g |
Plossl |
B |
10mm |
12.6mm |
50 |
4 |
B |
Manuf. |
10/97 |
|
Tele Vue Plossl 20mm |
1.25" |
53mm |
33mm |
90g |
Plossl |
B |
14mm |
17.1mm |
50 |
4 |
C |
Manuf. |
10/97 |
|
Tele Vue Plossl 25mm |
1.25" |
64mm |
33mm |
136g |
Plossl |
B |
17mm |
21.2mm |
50 |
4 |
C |
Manuf. |
10/97 |
|
Tele Vue Plossl 32mm |
1.25" |
71mm |
41mm |
180g |
Plossl |
B |
22mm |
27.0mm |
50 |
4 |
C |
Manuf. |
10/97 |
|
Tele Vue Plossl 40mm |
1.25" |
69mm |
41mm |
180g |
Plossl |
No |
28mm |
27.0mm |
43 |
4 |
C |
Manuf. |
10/97 |
|
Tele Vue Plossl 55mm |
2" |
112mm |
58mm |
590g |
Plossl |
No |
38mm |
46.0mm |
50 |
4 |
D |
Manuf. |
10/97 |
|
Panoptic 15mm |
2" |
56mm |
36mm |
136g |
Panoptic |
B |
10mm |
17.1mm |
68 |
6 |
D |
Manuf. |
10/97 |
|
Panoptic 19mm |
2" |
66mm |
43mm |
180g |
Panoptic |
B |
13mm |
21.3mm |
68 |
6 |
D |
Manuf. |
10/97 |
|
Panoptic 22mm |
2" |
94mm |
53mm |
450g |
Panoptic |
A |
15mm |
25.0mm |
68 |
6 |
D |
Manuf. |
10/97 |
|
Panoptic 27mm |
2" |
91mm |
53mm |
500g |
Panoptic |
A |
19mm |
30.5mm |
68 |
6 |
E |
Manuf. |
10/97 |
|
Panoptic 35mm |
2" |
117mm |
66mm |
770g |
Panoptic |
A |
24mm |
38.7mm |
68 |
6 |
E |
Manuf. |
10/97 |
|
Radian 3mm |
1.25" |
97mm |
46mm |
364g |
Radian |
B |
20 |
3.3mm |
60 |
7 |
D |
Manuf. |
02/00 |
|
Radian 4mm |
1.25" |
91mm |
46mm |
364g |
Radian |
B |
20 |
4.2mm |
60 |
7 |
D |
Manuf. |
02/00 |
|
Radian 5mm |
1.25" |
97mm |
46mm |
364g |
Radian |
B |
20 |
5.3mm |
60 |
7 |
D |
Manuf. |
02/00 |
|
Radian 6mm |
1.25" |
97mm |
46mm |
364g |
Radian |
B |
20 |
6.3mm |
60 |
7 |
D |
Manuf. |
02/00 |
|
Radian 10.5mm |
1.25" |
79mm |
46mm |
228g |
Radian |