Rowan Astronomy AZ100 Alt-Azimuth Mount

Starting Price: $1,800.00
Price as Configured: $1,800.00
Brand: Rowan Astronomy / SKU: RE-20031200a
The Rowan AZ100 is a precision-machined alt-azimuth mount built in the UK for serious visual observers who demand smooth motion, rock-solid stability, and payloads up to 44 lbs per side. Its 360° slow-motion controls stay aligned with you as you observe — a thoughtful design detail that makes high-power tracking effortless. Deep Space Products pairs the AZ100 with Berlebach hardwood tripods for a complete system that performs for a lifetime. Questions about configuration? Contact us — we help customers build the right setup for their telescopes and observing style.
Basic and Package Options (Required)
Mount Base Options (Required)
Recommended Add-ons and Accessories
Product Price Quantity
RE-21131200a - Rowan Astronomy AZ100 Dual Saddle Plate, 200mm, DV Profile
RE-21131200a - Rowan Astronomy AZ100 Dual Saddle Plate, 200mm, DV Profile
About This Product
Dual saddle with Vixen 'V' and Losmandy 'D' profiles.
CNC-machined and black anodized finish and fitted with stainless steel hardware.
The center of the saddle has a M16 thread to accept a counterweight shaft.
$256.00 each
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RE-21131200a - Rowan Astronomy AZ100 Dual Saddle Plate, 200mm, DV Profile
RE-21131200a - Rowan Astronomy AZ100 Dual Saddle Plate, 200mm, DV Profile
$256.00
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RE-21131200a - Rowan Astronomy AZ100 Dual Saddle Plate, 200mm, DV Profile
About This Product
Dual saddle with Vixen 'V' and Losmandy 'D' profiles.
CNC-machined and black anodized finish and fitted with stainless steel hardware.
The center of the saddle has a M16 thread to accept a counterweight shaft.
RE-20000235a - Rowan Astronomy AZ100 Hand Pad
RE-20000235a - Rowan Astronomy AZ100 Hand Pad
$189.00
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RE-20000235a - Rowan Astronomy AZ100 Hand Pad
About This Product
For use AZ100 Alt-Az mounts with Goto Motor Systems.

Adjustable jog speed.
Motors on/off.
Backlight on/off.
Other functions planned with future AZ100 firmware release.
Note: hand-pad is disabled when the mount is under the control of the Nexus DSC - planned firmware update will allow hand-pad and Nexus DSC to be used at the same time.
RE-21031200a  - Rowan Astronomy AZ100 Dual Saddle Plate, 200mm, D Profile
RE-21031200a - Rowan Astronomy AZ100 Dual Saddle Plate, 200mm, D Profile
$193.00
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RE-21031200a  - Rowan Astronomy AZ100 Dual Saddle Plate, 200mm, D Profile
About This Product
Saddle with Losmandy 'D' profile.
CNC-machined and black anodized finish and fitted with stainless steel hardware.
The center of the saddle has a M16 thread to accept a counterweight shaft.
RE-20031226a - Rowan Astronomy AZ100 Y-Axis Balance Plate
RE-20031226a - Rowan Astronomy AZ100 Y-Axis Balance Plate
$256.00
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RE-20031226a - Rowan Astronomy AZ100 Y-Axis Balance Plate
About This Product
This additional plate allows balancing of heavy eyepieces in combination with bino-viewers when pointing towards the zenith. Fits between the mount and existing saddle. Compatible with both 'D' or Dual 'DV' saddles.

Supplied with 16mm diameter x 320mm long eyepiece counterweight shaft which can be fitted to the front or rear of the Y-axis balance plate depending on which side of the mount the Y-axis plate is fitted.

CNC machined, black anodized finished and fitted with stainless steel hardware.

Available with the altitude axis spacer which will be required if you have a motor system fitted and fit the Y-axis balance plate on the left side of the mount.
RE-20031225a - Rowan Astronomy AZ100 Y-Axis Balance Plate with 24mm Spacer
RE-20031225a - Rowan Astronomy AZ100 Y-Axis Balance Plate with 24mm Spacer
$335.00
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RE-20031225a - Rowan Astronomy AZ100 Y-Axis Balance Plate with 24mm Spacer
About This Product
This additional plate allows balancing of heavy eyepieces in combination with bino-viewers when pointing towards the zenith. The Rowan Y-Axis Balance Plate fits between the mount and existing saddle and is compatible with both 'D' or Dual 'DV' saddles.

The plate is supplied with 16mm diameter x 320mm long eyepiece counterweight shaft which can be fitted to the front or rear of the Y-axis balance plate depending on which side of the mount the Y-axis plate is fitted.

CNC machined, black anodized finished and fitted with stainless steel hardware.

You can add the altitude axis space below.
RE-20031801a - Rowan Astronomy AZ100 Y-Axis Balance Plate Knobs
RE-20031801a - Rowan Astronomy AZ100 Y-Axis Balance Plate Knobs
$65.00
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RE-20031801a - Rowan Astronomy AZ100 Y-Axis Balance Plate Knobs
About This Product
Knobs for the Rowan Y-Axis Balance Plate
RE-20631221a12 - Rowan Astronomy AZ100 Altitude Axis Spacer 12mm
RE-20631221a12 - Rowan Astronomy AZ100 Altitude Axis Spacer 12mm
$73.00
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RE-20631221a12 - Rowan Astronomy AZ100 Altitude Axis Spacer 12mm
About This Product
All CNC machined aluminium and black anodized. Supplied with stainless steel hardware.

The Altitude Axis spacer allows the use of longer dovetail bars when mounted on the left side of the mount to give clearance where the motor is fitted. The spacer is not required if using a D dovetail bar in a DV saddle on the left or any dovetail / saddle combination on the right side of the mount.

RE-20631221a24 - Rowan Astronomy AZ100 Altitude Axis Spacer 24mm
RE-20631221a24 - Rowan Astronomy AZ100 Altitude Axis Spacer 24mm
$79.00
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RE-20631221a24 - Rowan Astronomy AZ100 Altitude Axis Spacer 24mm
About This Product
All CNC machined aluminium and black anodized. Supplied with stainless steel hardware.

The Altitude Axis spacer allows the use of longer dovetail bars when mounted on the left side of the mount to give clearance where the motor is fitted. The spacer is not required if using a D dovetail bar in a DV saddle on the left or any dovetail / saddle combination on the right side of the mount.

RE-21431200a - Rowan Astronomy Saddle Altitude Adjustment Plate AZ100
RE-21431200a - Rowan Astronomy Saddle Altitude Adjustment Plate AZ100
$140.00
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RE-21431200a - Rowan Astronomy Saddle Altitude Adjustment Plate AZ100
About This Product
This additional plate fits between the mount and existing saddle.
Compatible with both 'D' or Dual 'DV' saddles.
Provides adjustment to align both scopes at the same pointing position.
Both Altitude and Azimuth adjustments are possible.
CNC-machined and black anodized finish and fitted with stainless steel hardware.
RE-22550200a  - Rowan Astronomy Nexus DSC Shelf with Adjustable Ball Joint
RE-22550200a - Rowan Astronomy Nexus DSC Shelf with Adjustable Ball Joint
$42.00
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RE-22550200a  - Rowan Astronomy Nexus DSC Shelf with Adjustable Ball Joint
About This Product
CNC-machined black Delrin® with stainless steel fittings.
RE-16033027a - Rowan Astronomy Eyepiece / Y-Axis Weight
RE-16033027a - Rowan Astronomy Eyepiece / Y-Axis Weight
$87.00
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RE-16033027a - Rowan Astronomy Eyepiece / Y-Axis Weight
About This Product
750g stainless steel weight to quickly re-balance following eyepiece changes.
Fitted with Delrin® sleeve and soft tip locking knob.
Compatible with pan tilt handle or any 16.0mm shafts.
RE-20033219a - Rowan Astronomy 16mm Counterweight Shaft, M10, 330mm
RE-20033219a - Rowan Astronomy 16mm Counterweight Shaft, M10, 330mm
$54.00
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RE-20033219a - Rowan Astronomy 16mm Counterweight Shaft, M10, 330mm
About This Product
Additional Counterweight Shaft.
16.0mm diameter stainless steel 330mm long.
M10x1.5 thread.
Fits Pan handle mounts and Y-axis balance plate.
RE-16033200a - Rowan Astronomy Counterweight, 3.75kg, 125mm Diameter
RE-16033200a - Rowan Astronomy Counterweight, 3.75kg, 125mm Diameter
$165.00
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RE-16033200a - Rowan Astronomy Counterweight, 3.75kg, 125mm Diameter
About This Product
125mm diameter, 3.8Kg stainless steel weight. 40mm thick. 25mm bore.

How many counterweights to order?

For scopes under 5Kg you can usually mount with without counterweight.
For scopes from 5-8Kg choose 1 counterweight.
For scopes from 9Kg to 14Kg choose 2 counterweights.
For scopes from 15Kg to 20Kg choose 3 counterweights.

These figures are approximate and equate to counterweights of 1/2 to 2/3 the weight of the OTA.
RE-22133200a - Rowan Astronomy 25mm Counterweight Shaft for the AZ100
RE-22133200a - Rowan Astronomy 25mm Counterweight Shaft for the AZ100
$73.00
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RE-22133200a - Rowan Astronomy 25mm Counterweight Shaft for the AZ100
About This Product
25mm diameter stainless steel shaft.
M16 thread screws directly into a saddle or mounting flange.
Supplied with anodized aluminim safety knob with integral stop washer.
RE-22033200a  - Rowan Astronomy 25mm Counterweight Shaft w/ Mounting Flange for the AZ100
RE-22033200a - Rowan Astronomy 25mm Counterweight Shaft w/ Mounting Flange for the AZ100
$128.00
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RE-22033200a  - Rowan Astronomy 25mm Counterweight Shaft w/ Mounting Flange for the AZ100
About This Product
25mm diameter stainless steel shaft and mounting flange..
Supplied with anodized aluminum safety knob with integral stop washer.
Select this option if using a single saddle.
RE-22231200a - Rowan Astronomy Counterweight Shaft Mounting Flange for AZ100
RE-22231200a - Rowan Astronomy Counterweight Shaft Mounting Flange for AZ100
$63.00
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RE-22231200a - Rowan Astronomy Counterweight Shaft Mounting Flange for AZ100
About This Product
Mounting Flange only. Shaft is not included with this item.
Supplied with 4x M6x16mm mounting bolts.
The flange has a M16 central threaded hole to accept either AZ100 or AZ75 counterweight shafts.
RE-20031211a-M10 - Rowan Astronomy Base Adapter for AZ100, M10
RE-20031211a-M10 - Rowan Astronomy Base Adapter for AZ100, M10
$116.00
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RE-20031211a-M10 - Rowan Astronomy Base Adapter for AZ100, M10
About This Product
The adaptor bolts directly to the base of the AZ100 with 4 x M6 bolts and provides a flat 100mm diameter surface.
Adaptor thickness = 24mm.
4xM6 low cap head bolts can be fitted to make a spigot to aid alignment when mounting on popular tripods with 60mm and 65mm diameter recesses.
3/8", M10 and M12 threaded bush options available.
Replacement bushes are also available.
The tripod central bolt must protrude a minimum 10mm above the tripod top face for sufficient thread engagement. CNC machined and black anodized finished and supplied with stainless steel hardware.
RE-20031211a-M12 - Rowan Astronomy Base Adapter for AZ100, M12
RE-20031211a-M12 - Rowan Astronomy Base Adapter for AZ100, M12
$116.00
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RE-20031211a-M12 - Rowan Astronomy Base Adapter for AZ100, M12
About This Product
The adaptor bolts directly to the base of the AZ100 with 4 x M6 bolts and provides a flat 100mm diameter surface.
Adaptor thickness = 24mm.
4xM6 low cap head bolts can be fitted to make a spigot to aid alignment when mounting on popular tripods with 60mm and 65mm diameter recesses.
3/8", M10 and M12 threaded bush options available.
Replacement bushes are also available.
The tripod central bolt must protrude a minimum 10mm above the tripod top face for sufficient thread engagement. CNC machined and black anodized finished and supplied with stainless steel hardware.
RE-20031211a-38 - Rowan Astronomy Base Adapter for AZ100, 3/8 UNC
RE-20031211a-38 - Rowan Astronomy Base Adapter for AZ100, 3/8 UNC
$116.00
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RE-20031211a-38 - Rowan Astronomy Base Adapter for AZ100, 3/8 UNC
About This Product
The adaptor bolts directly to the base of the AZ100 with 4 x M6 bolts and provides a flat 100mm diameter surface.
Adaptor thickness = 24mm.
4xM6 low cap head bolts can be fitted to make a spigot to aid alignment when mounting on popular tripods with 60mm and 65mm diameter recesses.
3/8", M10 and M12 threaded bush options available.
Replacement bushes are also available.
The tripod central bolt must protrude a minimum 10mm above the tripod top face for sufficient thread engagement. CNC machined and black anodized finished and supplied with stainless steel hardware.
RE-A2413064-M10 - Rowan Astronomy Base Adapter Bushing for AZ100, M10
RE-A2413064-M10 - Rowan Astronomy Base Adapter Bushing for AZ100, M10
$45.00
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RE-A2413064-M10 - Rowan Astronomy Base Adapter Bushing for AZ100, M10
About This Product
Additional threaded bushes which can be exchanged with those fitted in the AZ100 24mm tall base adaptors to allow fitting to different tripod heads.
RE-A2413064-M12 - Rowan Astronomy Base Adapter Bushing for AZ100, M12
RE-A2413064-M12 - Rowan Astronomy Base Adapter Bushing for AZ100, M12
$45.00
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RE-A2413064-M12 - Rowan Astronomy Base Adapter Bushing for AZ100, M12
About This Product
Additional threaded bushes which can be exchanged with those fitted in the AZ100 24mm tall base adaptors to allow fitting to different tripod heads.
RE-A2413064-38 - Rowan Astronomy Base Adapter Bushing for AZ100, 3/8 UNC
RE-A2413064-38 - Rowan Astronomy Base Adapter Bushing for AZ100, 3/8 UNC
$45.00
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RE-A2413064-38 - Rowan Astronomy Base Adapter Bushing for AZ100, 3/8 UNC
About This Product
Additional threaded bushes which can be exchanged with those fitted in the AZ100 24mm tall base adaptors to allow fitting to different tripod heads.
RE-24031200a-M10 - Rowan Astronomy Pier Adapter for AZ100, M10
RE-24031200a-M10 - Rowan Astronomy Pier Adapter for AZ100, M10
$116.00
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RE-24031200a-M10 - Rowan Astronomy Pier Adapter for AZ100, M10
About This Product
This adaptor allows fitting the AZ100 directly to a pier surface with out the need to access from below. The pier top will require 4 x M8 tapped holes on 90.0mm circle. Bolts directly to the base of the AZ100.

Will also fit to tripods using a M12 , M10 , or 3/8" bolt.
The tripod central bolt must protrude a minimum 10mm above the tripod top face for sufficient thread engagement. NOTE: Some tripods may require the central bolt exchanging for a longer type. CNC machined and black anodized finished and supplied with stainless steel hardware.
RE-24031200a-M12 - Rowan Astronomy Pier Adapter for AZ100, M12
RE-24031200a-M12 - Rowan Astronomy Pier Adapter for AZ100, M12
$116.00
« Back to All Add-ons
RE-24031200a-M12 - Rowan Astronomy Pier Adapter for AZ100, M12
About This Product
This adaptor allows fitting the AZ100 directly to a pier surface with out the need to access from below. The pier top will require 4 x M8 tapped holes on 90.0mm circle. Bolts directly to the base of the AZ100.

Will also fit to tripods using a M12 , M10 , or 3/8" bolt.
The tripod central bolt must protrude a minimum 10mm above the tripod top face for sufficient thread engagement. NOTE: Some tripods may require the central bolt exchanging for a longer type. CNC machined and black anodized finished and supplied with stainless steel hardware.
RE-24031200a-38 - Rowan Astronomy Pier Adapter for the AZ100, 3/8 UNC
RE-24031200a-38 - Rowan Astronomy Pier Adapter for the AZ100, 3/8 UNC
$116.00
« Back to All Add-ons
RE-24031200a-38 - Rowan Astronomy Pier Adapter for the AZ100, 3/8 UNC
About This Product
This adaptor allows fitting the AZ100 directly to a pier surface with out the need to access from below. The pier top will require 4 x M8 tapped holes on 90.0mm circle. Bolts directly to the base of the AZ100.

Will also fit to tripods using a M12 , M10 , or 3/8" bolt.
The tripod central bolt must protrude a minimum 10mm above the tripod top face for sufficient thread engagement. NOTE: Some tripods may require the central bolt exchanging for a longer type. CNC machined and black anodized finished and supplied with stainless steel hardware.
RE-20531200a - Rowan Astronomy Pan Tilt Handle for the AZ100
RE-20531200a - Rowan Astronomy Pan Tilt Handle for the AZ100
$116.00
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RE-20531200a - Rowan Astronomy Pan Tilt Handle for the AZ100
About This Product
Fits to the inside face of the saddle with 2 x M6 bolts and can be mounted on the left or right side of the mount.
Handle is 350mm or 14" long.
Compatible with both 'D' or Dual 'DV' saddles.
CNC-machined and black anodized finish and fitted with stainless steel hardware.
RE-17031090a-M10 - Rowan Astronomy Pier Riser, 125mm (M10)
RE-17031090a-M10 - Rowan Astronomy Pier Riser, 125mm (M10)
$238.00
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RE-17031090a-M10 - Rowan Astronomy Pier Riser, 125mm (M10)
About This Product
Black anodized aluminum.
125mm tall, 100mm diameter, 1.25kg
Height can be extended using optional extension piece.
Thread = M10
RE-17031090a-M12 - Rowan Astronomy Pier Riser, 125mm (M12)
RE-17031090a-M12 - Rowan Astronomy Pier Riser, 125mm (M12)
$238.00
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RE-17031090a-M12 - Rowan Astronomy Pier Riser, 125mm (M12)
About This Product
Black anodized aluminum.
125mm tall, 100mm diameter, 1.25kg
Height can be extended using optional extension piece.
Thread = M12
RE-17031090a-38UNC - Rowan Astronomy Pier Riser, 125mm (3/8" UNC)
RE-17031090a-38UNC - Rowan Astronomy Pier Riser, 125mm (3/8" UNC)
$238.00
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RE-17031090a-38UNC - Rowan Astronomy Pier Riser, 125mm (3/8" UNC)
About This Product
Black anodized aluminum.
125mm tall, 100mm diameter, 1.25kg
Height can be extended using optional extension piece.
Thread = 3/8 inch UNC
RE-17031091a-M10 - Rowan Astronomy Pier Riser, 200mm (M10)
RE-17031091a-M10 - Rowan Astronomy Pier Riser, 200mm (M10)
$256.00
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RE-17031091a-M10 - Rowan Astronomy Pier Riser, 200mm (M10)
About This Product
Black anodized aluminum.
200mm tall, 100mm diameter, 1.6kg
Height can be extended using optional extension piece.
Thread = M10
RE-17031091a-M12 - Rowan Astronomy Pier Riser, 200mm (M12)
RE-17031091a-M12 - Rowan Astronomy Pier Riser, 200mm (M12)
$256.00
« Back to All Add-ons
RE-17031091a-M12 - Rowan Astronomy Pier Riser, 200mm (M12)
About This Product
Black anodized aluminum.
200mm tall, 100mm diameter, 1.6kg
Height can be extended using optional extension piece.
Thread = M10
RE-17031091a-38UNC - Rowan Astronomy Pier Riser, 200mm (3/8" UNC)
RE-17031091a-38UNC - Rowan Astronomy Pier Riser, 200mm (3/8" UNC)
$256.00
« Back to All Add-ons
RE-17031091a-38UNC - Rowan Astronomy Pier Riser, 200mm (3/8" UNC)
About This Product
Black anodized aluminum.
200mm tall, 100mm diameter, 1.6kg
Height can be extended using optional extension piece.
Thread = M10
RE-17031080a - Rowan Astronomy Pier Riser Hand Knobs (Set of 3) for AZ100
RE-17031080a - Rowan Astronomy Pier Riser Hand Knobs (Set of 3) for AZ100
$61.00
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RE-17031080a - Rowan Astronomy Pier Riser Hand Knobs (Set of 3) for AZ100
About This Product
Quickly attach the AZ100 mount to a riser without tools.
CNC machined in aluminium and black anodized.
30mm diameter. Set of 3.
RE-17230063a - Rowan Astronomy Pier Riser Bushing (3/8" UNC)
RE-17230063a - Rowan Astronomy Pier Riser Bushing (3/8" UNC)
$34.00
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RE-17230063a - Rowan Astronomy Pier Riser Bushing (3/8" UNC)
About This Product
Additional threaded bushing which can be exchanged with those fitted in the riser bases
to allow the riser to fit to different tripod heads.
Thread = M10
RE-17230064a - Rowan Astronomy Pier Riser Bushing (M10)
RE-17230064a - Rowan Astronomy Pier Riser Bushing (M10)
$34.00
« Back to All Add-ons
RE-17230064a - Rowan Astronomy Pier Riser Bushing (M10)
About This Product
Additional threaded bushing which can be exchanged with those fitted in the riser bases
to allow the riser to fit to different tripod heads.
Thread = M10
RE-17230065a - Rowan Astronomy Pier Riser Bushing (M12)
RE-17230065a - Rowan Astronomy Pier Riser Bushing (M12)
$34.00
« Back to All Add-ons
RE-17230065a - Rowan Astronomy Pier Riser Bushing (M12)
About This Product
Additional threaded bushing which can be exchanged with those fitted in the riser bases
to allow the riser to fit to different tripod heads.
Thread = M10
RE-17131090a - Rowan Astronomy AZ100 Riser Extension 125mm
RE-17131090a - Rowan Astronomy AZ100 Riser Extension 125mm
$189.00
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RE-17131090a - Rowan Astronomy AZ100 Riser Extension 125mm
About This Product
Black anodized aluminum.
125mm tall. 100mm diameter. Weight 0.97Kg
Supplied with jointing flange to connect to the 125mm or 200mmm risers.
RE-17131091a - Rowan Astronomy AZ100 Riser Extension 200mm
RE-17131091a - Rowan Astronomy AZ100 Riser Extension 200mm
$207.00
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RE-17131091a - Rowan Astronomy AZ100 Riser Extension 200mm
About This Product
Black anodized aluminum.
200mm tall. 100mm diameter. Weight 1.28Kg
Supplied with jointing flange to connect to the 125mm or 200mmm risers.
RE-20060200a - Rowan Astronomy Slow Motion Cables, 320mm + 420mm, Including Knobs
RE-20060200a - Rowan Astronomy Slow Motion Cables, 320mm + 420mm, Including Knobs
$140.00
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RE-20060200a - Rowan Astronomy Slow Motion Cables, 320mm + 420mm, Including Knobs
About This Product
Additional pair of slow motion cables. 320mm + 420mm including knobs and coupling sleeve to attach to the mount's slow motion work shafts.

QTY:  
Price as Configured: $1,800.00

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Payload Capacity 15–20 kg (33–44 lbs) per side, depending on telescope length
Mount Head Weight 8 kg (17.5 lbs) head only; 9.8 kg (22 lbs) with dual DV saddles
Construction CNC-machined 7075 aluminum, black anodized; stainless steel hardware
Worm Wheels 80mm diameter, 7075 aluminum
Worm Gears Brass, in user-adjustable worm blocks
Axis Shafts 32mm diameter, 7075 aluminum
Bearings High-quality ball and taper bearings
Slow-Motion Controls 360° on both axes; flexible cables (340mm & 440mm included)
Friction Clutches Adjustable on both axes; allows simultaneous push-to and slow-motion
Encoder Option Renishaw encoders, 152,000 steps/revolution (pre-installed option)
DSC Compatibility AstroDevices Nexus DSC WiFi, Nexus II, Nexus DSC Pro
GoTo Motor System Optional; factory-installed or retrofit kit available
Saddle Options Losmandy D-style; Dual Losmandy/Vixen (DV); 200mm length with 2 clamps
Counterweight Provision 16mm central thread on saddles for optional counterweight shaft
Tripod Mounting M12 tapped hole; compatible with Berlebach, EQ6/Atlas/CGEM (AZ pin removed), EQ-5 (with adapter)
Country of Manufacture United Kingdom (Rowan Engineering, Banbury)