Weitkamp Observatory Facilities


 

Telescopes

 

Telescope

Picture

Features

Eyepieces

Accessories

Motor/

Mount

Status

Celestron C-14

“Newton”

 14” aperture

Schmidt-Cassegrain

2” diameter:

13 mm Nagler

50 mm

20 mm

Finder,

Giant Stardiagonal

Yes/

Fixed

OK

Celestron C-8 

Kepler

 

8” aperture

Schmidt-Cassegrain

1¼”diameter:

40 mm Kellner

25 mm

12 mm

9 mm

Finder 6x30

Yes/

Fixed

&Mobile

OK

Celestron C-8 

Galileo

 

8” aperture

Schmidt-Cassegrain

(shown with Solar Filter)

1¼”diameter:

40 mm Kellner

25 mm Kellner

12 mm Ortho

6 mm Ortho

 

Finder 6x30,

Stardiagonal

Yes/

Fixed

&Mobile

OK

Celestron C-8 

Tycho

 

8” aperture

Schmidt-Cassegrain

(shown in front of C-14 telescope shed)

1¼”diameter:

40 mm Kellner

25 mm Kellner

20 mm Erfle

9 mm Ortho

 

Finder 6x30,

Stardiagonal

Yes/

Fixed

&Mobile

OK

Monolux

80 mm

Refractor

  

80mm Refractor

3/4”diameter:

20 mm

12.5 mm

6 mm

4 mm

 

Solar Projection Screen, Sunfilter, Moonfilter, 2x Barlow Lens, Porro Prism, Star diagonal , finder 6x,

No/

Mobile

Restored

(7/8/03)

Meade Refractor

 

 

3/4”diameter:

 

 

No/Mobile Equatorial mount

unusable

Historic Refractor

 

3 ¾ ” Refractor

 

 

No/

Mobile Alt-Azimuth

Ok

2 ½” Refractor

 

Very Long Refractor

1¼”diameter:

 

None

No/Mobile

unusable

3” Tasco Reflector

“Lunagrosso”

4½” Newtonian Reflector, focal length 900mm, focal ration f/8

0.965”diameter:

6 mm H (lost)

20 mm H (lost)

5 x 24 Finder, solar apeture cap,

had originally:

2x Barlow lens

sun filter, moon filter

 

Yes/

Mobile Equatorial mount, 60” tripod

unusable

50 mm White Cardboard

Telescope

50 mm Refractor, Lens made in Paris 1880s

1¼”diameter:

 

None

No/Alt-azimuth mount

 

OK

50 mm Cardboard Telescope

50 mm Refractor

1¼”diameter:

 

None

No/Alt-azimuth mount

OK

British Army Telescope I

Refractor

 

None

No/None

OK

British Army Telescope II

Refractor

 

None

No/None

OK

Extra Finder Scopes

 

 

 

 

 

 

 

Cameras

 

 

Picture

Features

Status

Meade Pictor 416 XT CCD camera

 

 

 

5 ½ ” Schmidt Camera

 

OK

SONY DSC

F-717

Digital Camera

OK

Ricoh Auto TLS EE

(1973 ?)

35 mm camera,

50 mm objective,

Fixed pentaprism
Shutter: cloth 1-1/1000, B
Flash: standard F and X synch at 1/60, hot shoe
Metering: Open aperture metering, shutter priority (?)
Finder: Microprism spot and ground glass collar in Freshnel screen
Battery: ?

Auto diaphragm
Instant return mirror
Self-timer
Max aperture of lens set on top of the dial; AE hold

???

Nikkorex F

35 mm camera,

135 mm objective,

The Nikkorex F Camera had its own coupled meter, and a couple of lenses made by Mamiya. This is a Nikkorex F, with the (Mamiya) Nikkorex-Sekor 35mm f/2.8, and with the Nikkorex coupled meter attached. The Nikkorex-Sekor lens is not meter coupled in any way (and is semi-automatic), having a lever for "cocking" the aperture which must be activated to reopen the lens after each exposure. The meter can be used with such a lens, in which case it is set to the film speed in use, is coupled to the shutter speed dial only, and the needle's readout is an aperture to be manually set by the photographer for that particular shutter speed. When used with a "pronged" lens the lens is mounted with the f-stop set at f/5.6, in which case it engages the "prong" of the lens with its own pin. This couples the lens's aperture to the meter. The maximum aperture of the lens is then set on a dial on the meter at a point which is just opposite the film speed in use. This indexes the maximum aperture of the lens to the meter and allows direct setting of the exposure with movement of either the shutter speed dial or the aperture ring, or both, to match the meter's needle, in a manner that the meter reflects both the shutter speed and aperture in use.

???

Fujica ST 701

(1970)

35 mm camera,

50 mm objective

???

 

 

Facilities

 

 

Picture

Features

Status

Planetarium

Spitz A-1 Planetarium with Dome

unusable

Arch B. Tripler Solar Facility

8” Solar Filter

ok

 

 


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Copyright © 2003 Uwe Trittmann

This document was last updated December 5, 2003.