Show 101 to 200 (of in total 345 products)
Dust or lint on lenses or mirrors

Dust or lint on lenses or mirrors

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Laser collimator / contact problem when setting different brightness levels

Laser collimator / contact problem when setting different brightness levels

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Omegon Radiant Reflex finder - battery cable broken

Omegon Radiant Reflex finder - battery cable broken

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Misalignment of binoculars due to tilted lens

Misalignment of binoculars due to tilted lens

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Why we sometimes need a little longer to answer inquiries:

Why we sometimes need a little longer to answer inquiries:

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Analysis: Star Adventurer Gearbox Error

Analysis: Star Adventurer Gearbox Error

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EQ6-R PRO mount repair: Both axes..no response

EQ6-R PRO mount repair: Both axes..no response

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Always let the lever of the polar height screw of the EQ6-R grip!

Always let the lever of the polar height screw of the EQ6-R "grip"!

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Repair: Battery compartment replacement on StarAdventurer mount

Repair: Battery compartment replacement on StarAdventurer mount

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0,00 EUR
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Quickly observe the stars from home | Permanently mount it on your balcony? Its easy!

Quickly observe the stars from home | Permanently mount it on your balcony? It's easy!

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Solution for minor problems with Star Adventurer (SA)

Solution for minor problems with Star Adventurer (SA)

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Repair: SC Celestron C5 cannot be focused or adjusted

Repair: SC Celestron C5 cannot be focused or adjusted

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Repairing a blocked eyepiece thread

Repairing a blocked eyepiece thread

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Repair of the focuser of an APO telescope

Repair of the focuser of an APO telescope

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0,00 EUR
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Do we really check and adjust all telescopes, mounts and accessories?

Do we really check and adjust all telescopes, mounts and accessories?

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Overhaul/repair of a Celestron CGEM mount after a power surge

Overhaul/repair of a Celestron CGEM mount after a power surge

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Why some lens cells of refractor / ED-APO / lens telescope cannot be adjusted

Why some lens cells of refractor / ED-APO / lens telescope cannot be adjusted

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GPS WEEK ROLLOVER PROBLEM (when the date is set to 2099)

GPS WEEK ROLLOVER PROBLEM (when the date is set to 2099)

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Celestron C9 - Repairing a loose secondary mirror

Celestron C9 - Repairing a loose secondary mirror

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HEQ5: Motor Error fixed with board replacement

HEQ5: Motor Error fixed with board replacement

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Repair and cleaning C8 with loose secondary mirror

Repair and cleaning C8 with loose secondary mirror

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Foreign body removal: A Celestron C8 has landed on the bee...

Foreign body removal: A Celestron C8 has landed on the bee...

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Help & prevention in case of deep discharge of batteries/power tanks/power suppliers

Help & prevention in case of deep discharge of batteries/power tanks/power suppliers

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Repair of a Celestron Evolution mount, short circuit on the circuit board

Repair of a Celestron Evolution mount, short circuit on the circuit board

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Zoom or wide-angle eyepiece - (not) a question of experience

Zoom or wide-angle eyepiece - (not) a question of experience

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Winklmoosalm Star Park Reit im Winkl: One of the darkest corners in Bavaria for astronomy

Winklmoosalm Star Park Reit im Winkl: One of the darkest corners in Bavaria for astronomy

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0,00 EUR
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The new mount for bino telescope (double telescope) enters the test phase

The new mount for bino telescope (double telescope) enters the test phase

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Our new binocular holder (double telescope) - The prototype is milled

Our new binocular holder (double telescope) - The prototype is milled

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Replacing the circuit board on a SkyWatcher HEQ5 mount

Replacing the circuit board on a SkyWatcher HEQ5 mount

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0,00 EUR
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Focuser on Celestron (C11) blocked due to too long screws & foreign objects

Focuser on Celestron (C11) blocked due to too long screws & foreign objects

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Replacing the GP finder shoe on Bresser Messier telescopes

Replacing the GP finder shoe on Bresser Messier telescopes

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0,00 EUR
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Repair of a Meade LX200 16 mount

Repair of a Meade LX200 16'' mount

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0,00 EUR
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SkyWatcher mount AZ-GTI: Solidly built, easy to adjust and regrease

SkyWatcher mount AZ-GTI: Solidly built, easy to adjust and regrease

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Conversion of a GSO 680 Dobson 8 200/1200mm telescope with GoTo to an observatory

Conversion of a GSO 680 Dobson 8" 200/1200mm telescope with GoTo to an observatory

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Telescope with individual design - Repainting

Telescope with individual design - Repainting

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Our new prototype of a double telescope (binocular) with two Newtons. A double Newton.

Our new prototype of a double telescope (binocular) with two Newtons. A double Newton.

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Cleaning & repairing the iOptron SkyTracker - Star Tracker tracking unit for astrophotography.

Cleaning & repairing the iOptron SkyTracker - Star Tracker tracking unit for astrophotography.

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Small but mighty: Skywatcher Heritage-100P, a 4 Mini Dobson for solar observations in white light

Small but mighty: Skywatcher Heritage-100P, a 4" Mini Dobson for solar observations in white light

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The Bino prototype is taking shape: individual parts for the double telescope

The Bino prototype is taking shape: individual parts for the double telescope

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If a 45° 2 Amici prism has become loose in the middle,

If a 45° 2" Amici prism has become loose in the middle,

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A look at the circuit board of the Meade LX200 from 1993

A look at the circuit board of the Meade LX200 from 1993

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Painting the telescope in a different color:

Painting the telescope in a different color:

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Check that the secondary mirror is in the center of the tube and thus in the center of the primary mirror.

Check that the secondary mirror is in the center of the tube and thus in the center of the primary mirror.

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0,00 EUR
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Our Bino prototype works:

Our Bino prototype works:

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Repair and adjustment SkyWatcher Star Discovery AZ GoTo mount:

Repair and adjustment SkyWatcher Star Discovery AZ GoTo mount:

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0,00 EUR
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Repairing the focus of a Coronado PST H-Alpha solar telescope

Repairing the focus of a Coronado PST H-Alpha solar telescope

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We check zenith mirrors on a reference telescope that is perfectly adjusted.

We check zenith mirrors on a "reference telescope" that is perfectly adjusted.

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VIXEN A62SS focuser repair:

VIXEN A62SS focuser repair:

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We not only optimize telescopes, but also microscopes

We not only optimize telescopes, but also microscopes

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Another column adapter for the SkyWatcher EQ6-R from JD-Astronomy.

Another column adapter for the SkyWatcher EQ6-R from JD-Astronomy.

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Bresser Telescopes: Setting and adjusting the Hexafoc focuser

Bresser Telescopes: Setting and adjusting the Hexafoc focuser

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An idea how to transport your telescope in a station wagon.

An idea how to transport your telescope in a station wagon.

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Adjusting SkyWatcher Maksutov SkyMax 150 or 180: Over three pairs of screws!

Adjusting SkyWatcher Maksutov SkyMax 150 or 180: Over three pairs of screws!

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If the center of gravity of a telescope should be further back,

If the center of gravity of a telescope should be further back,

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Why we pack telescopes even more securely after adjustment

Why we pack telescopes even more securely after adjustment

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For the glass solar filter Astrozap or Orion for the Bresser Messier NT-203 Newton, the ring around the tube must be removed

For the glass solar filter Astrozap or Orion for the Bresser Messier NT-203 Newton, the ring around the tube must be removed

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Some telescopes use plastic screws.

Some telescopes use plastic screws.

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If the focusing does not work on a Maksutov or Schmidt-Cassegrain

If the focusing does not work on a Maksutov or Schmidt-Cassegrain

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One reason we check telescopes before shipping is

One reason we check telescopes before shipping is

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News from the EQ8 - Guiding problems

News from the EQ8 - Guiding problems

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With the SkyWatcher Newton, the focuser can be adjusted/centered using a Cheshire eyepiece.

With the SkyWatcher Newton, the focuser can be adjusted/centered using a Cheshire eyepiece.

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For some mounts, the original packaging must be repacked

For some mounts, the original packaging must be repacked

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Even a Porsche 911 Cabriolet can be used to transport an 8 Dobson telescope if necessary ;-)

Even a Porsche 911 Cabriolet can be used to transport an 8" Dobson telescope if necessary ;-)

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If you have any questions, problems, assistance, advice and introductions / instructions about your telescope, mount or accessories, please feel free to contact us

If you have any questions, problems, assistance, advice and introductions / instructions about your telescope, mount or accessories, please feel free to contact us

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Make rotation clamps from two pipe clamps for Newton:

Make rotation clamps from two pipe clamps for Newton:

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Removing the tube from the fork mount using the example of the somewhat older Celestron NexStar CPC C11 SC telescope

Removing the tube from the fork mount using the example of the somewhat older Celestron NexStar CPC C11 SC telescope

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Adjusting the SkyWatcher MakNewton MN190 is as easy as adjusting a Newton.

Adjusting the SkyWatcher MakNewton MN190 is as easy as adjusting a Newton.

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With the SkyWatcher AZ-EQ6-GT GoTo mount, the toothed belts and motors can be easily tensioned.

With the SkyWatcher AZ-EQ6-GT GoTo mount, the toothed belts and motors can be easily tensioned.

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Blackening the inside of the tube with Berger anti-reflective paint has several advantages:

Blackening the inside of the tube with Berger anti-reflective paint has several advantages:

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With the GMK-COLLIMATOR by Wolfgang Grzybowski , a webcam and a notebook, the adjustment can be done very easily

With the GMK-COLLIMATOR by Wolfgang Grzybowski , a webcam and a notebook, the adjustment can be done very easily

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The distance between the prism rail and the carrying handle can be increased using a screw nut.

The distance between the prism rail and the carrying handle can be increased using a screw nut.

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If the cigarette lighter socket on a power tank or jump start battery becomes loose...

If the cigarette lighter socket on a power tank or jump start battery becomes loose...

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We package some mounts more securely for shipping.

We package some mounts more securely for shipping.

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With carbon tubes, it can happen over time that the screw connections come loose

With carbon tubes, it can happen over time that the screw connections come loose

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The focuser can be replaced easily and simply.

The focuser can be replaced easily and simply.

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Adjusting the Meade ETX Maksutov is not comfortable...

Adjusting the Meade ETX Maksutov is not comfortable...

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The Diamond Steeltrack focuser from Baader can be very finely adjusted / aligned / centered

The Diamond Steeltrack focuser from Baader can be very finely adjusted / aligned / centered

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The adjustment screws of the ASA Newton are very solid

The adjustment screws of the ASA Newton are very solid

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Intes has different designs to build the secondary mirror

Intes has different designs to build the secondary mirror

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On request, we can mount a second prism rail on top of the pipe clamps (carrying handle)

On request, we can mount a second prism rail on top of the pipe clamps (carrying handle)

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If the focuser runs out of round, or drags, or jams...

If the focuser runs out of round, or drags, or jams...

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0,00 EUR
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Changing the battery in the dual LED red-white light flashlight from SkyWatcher or Celestron:

Changing the battery in the dual LED red-white light flashlight from SkyWatcher or Celestron:

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Compass and spirit level for the EQ mount tripod for easy north alignment:

Compass and spirit level for the EQ mount tripod for easy north alignment:

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If a Newtonian does not have a center mark for the primary mirror:

If a Newtonian does not have a center mark for the primary mirror:

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If the rotary handle on an eyepiece extension is loose, it can be easily tightened

If the rotary handle on an eyepiece extension is loose, it can be easily tightened

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Historic telescope from around 1930

Historic telescope from around 1930

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Timelapse of our surveillance camera...

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We now offer live video consultations...

We now offer live video consultations...

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Here you can see the image scale of the sun / moon with different telescopes and chip sizes

Here you can see the image scale of the sun / moon with different telescopes and chip sizes

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Observe the sun with different filters on different telescopes, compare and test

Observe the sun with different filters on different telescopes, compare and test

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Changing the battery on the Celestron NexStar Evolution GoTo mount:

Changing the battery on the Celestron NexStar Evolution GoTo mount:

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A look inside the SkyWatcher AZ EQ6 GT GoTo mount:

A look inside the SkyWatcher AZ EQ6 GT GoTo mount:

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Mounts also need to be packaged securely for shipping.

Mounts also need to be packaged securely for shipping.

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In order to additionally package a telescope for shipping, a large amount of air cushion is required.

In order to additionally package a telescope for shipping, a large amount of air cushion is required.

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If the connection sockets for the cigarette lighter plugs for the jump start battery mounts have become loose...

If the connection sockets for the cigarette lighter plugs for the jump start battery mounts have become loose...

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To adjust a Ritchey Chrétien (RC) we use a slide light chart as an aid.

To adjust a Ritchey Chrétien (RC) we use a slide light chart as an aid.

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The SkyWatcher Newton Explorer-130PDS comes with the AZ4 mount in the zenith...

The SkyWatcher Newton Explorer-130PDS comes with the AZ4 mount in the zenith...

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A standard viewfinder shoe can be mounted on almost all Schmidt-Cassegrain lenses

A standard viewfinder shoe can be mounted on almost all Schmidt-Cassegrain lenses

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If the focuser is too easy or too stiff...

If the focuser is too easy or too stiff...

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0,00 EUR
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Telescope repair: Microfocuser or 1:10 reduction on the eyepiece

Telescope repair: Microfocuser or 1:10 reduction on the eyepiece

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A better anti-reflective coating (velour, (velour, velour), blackboard varnish, Berger anti-reflective paint) increases the contrast and sharpness.
A better anti-reflective coating (velour, (velour, velour), blackboard varnish, Berger anti-reflective paint) increases the contrast and sharpness.
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Celestron DEW HEATER RING - 9.25"
Celestron DEW HEATER RING - 9.25
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