My telescopes -- past and present:

 

Aperture (mm)

Aperture (in)

Focal ratio

Type

Maker

Bought

Sold

108

4.2

f/10.6

Newtonian

Edmund

1957 07 04

 

54

2.1

f/23.5

Achromat

Jaegers

1957 12 05

2005 03 16

203

8.0

f/6.9

Newtonian

Cave

1959 03 ??

 

203

8.0

f/9.9

Schmidt-Cassegrain

Meade

1981 12 16

1998 01 02

90

3.5

f/13.9

Maksutov-Cassegrain

Meade

1997 11 09

1999 01 22

80

3.1

f/5.0

Achromat

Synta (Orion)

1998 01 12

2000 05 08

254

10.0

f/4.5

Newtonian

Meade

1999 02 20

2002 05 03

150

5.9

f/5.0

Newtonian

Lin (Premier)

1999 05 20

2001 01 18

102

4.0

f/9.8

Achromat

Synta (Celestron)

1999 11 26

2000 02 26

150

5.9

f/8.0

Achromat

Synta (Celestron)

2000 03 01

2001 11 30

102

4.0

f/4.9

Achromat

Synta (SkyWatcher)

2000 05 08

2001 10 29

152

6.0

f/5.9

Maksutov-Newtonian

Intes (Orion)

2000 08 25

 

130

5.1

f/5.0

Newtonian

Synta (SkyWatcher)

2001 03 07

2001 07 07

127

5.0

f/12.1

Maksutov-Cassegrain

Synta (Orion)

2001 09 12

2004 11 18

120

4.7

f/8.3

Achromat

Sky Antares

2001 11 30

2005 08 03

279

11.0

f/4.3

Newtonian

Starmaster/Zambuto

2002 03 22

 

113

4.4

f/4.0

Newtonian

Synta (Orion)

2002 12 05

2004 12 05

127

5.0

f/7.9

Achromat

Burgess

2003 12 12

2004 03 30

80

3.1

f/7.5

ED Apochromat

Synta (Orion)

2003 12 15

 

305

12.0

f/4.9

Newtonian

Guan Sheng (Sky Mentor)

2004 06 29

2005 06 15

100

3.9

f/9.0

ED Apochromat

Synta (Orion)

2004 08 23

 

40

1.6

f/10.0

Achromat

Coronado PST

2005 03 02

 

150

5.9

f/8.0

Newtonian

Synta (Orion)

2005 05 27

2010 08 11

150

5.9

f/10.0

Schmidt-Cassegrain

Celestron

2006 12 15

 

279

11.0

f/10.0

Schmidt-Cassegrain

Celestron

2007 09 14

 

120

4.7

f/7.5

ED Apochromat

Synta (Orion)

2009 10 30

2011 08 24

76

3.0

f/3.9

Newtonian

Synta (Orion)

2009 11 04

 

80

3.1

f/4.3

Achromat

Synta (Orion)

2009 11 04

2012 07 25

50

2.0

f/10.0

Achromat

Galileoscope

2009 11 27

 

127

5.0

F/7.5

Apochromat

Explore Scientific

2010 12 10

 

My present eyepieces:
 

Focal length

Maker

Type

Field of view

Eye relief

Comments

40mm

University Optics

MK-70 König

70°

?

Widest field in 2" size

31mm

Tele Vue

Nagler 5

82°

19mm

 

22mm

Tele Vue

Nagler 4

82°

19mm

Most used low power

16mm

Tele Vue

Nagler 2

82°

10mm

 

13mm

Tele Vue

Ethos

100°

15mm

New toy!

11mm

Tele Vue

Nagler 6

82°

12mm

 

8.8mm

Meade

Ultra Wide

84°

9mm

Most used medium power

6mm

Tele Vue

Radian

60°

20mm

 

5mm

Tele Vue

Radian

60°

20mm

Most used high power

4.8mm

Tele Vue

Nagler

82°

7mm

Used for faint variable stars

4mm

Tele Vue

Radian

60°

20mm

 

Binoviewer pairs

 

 

 

 

 

24.5mm

Meade

Super Wide

67°

9mm

Widest field in 1.25" size

12.5mm

Pocono

Orthoscopic

44°

10mm

 

8.8mm

Meade

Ultra Wide

84°

9mm

 

10mm

Antares

Plössl

52°

6mm

Most used in binoviewer

8mm

Tele Vue

Plössl

50°

6mm

 

6mm

Antares

Orthoscopic

43°

4.8mm

 

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