William Optics ZenithStar 103mm f/6.9 Imaging Apo Refractor with EQ-35 Mount Package - Red # A-Z103RD-P

Our Price: $2,398.00
Free shipping for this item in the Contiguous US Only Click here for more info

Contiguous US Customers:
All items we sell ship for free within the Contiguous US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.

US Customers in Hawaii and Alaska:
Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.

International Customers:
Free shipping does not apply to international orders. During check-out, you will be presented with several shipping choices and costs. However, the export of some items may be restricted outside the US due to size or manufacturer restrictions.

Our Product ID: T-WO-A-Z103RD-P
Manufacturer SKU: A-Z103RD-P
Item Can Ship: To US Only
William Optics ZenithStar 103mm f/6.9 Imaging Apo Refractor with EQ-35 Mount Package - Red  # A-Z103RD-P

More Views

Product Details

We are very excited to announce the new 2018 Super ZenithStar 103mm f/6.9 Imaging APO. Weighs less than 4 kgs.

Telescope Features:

  • ZenithStar 103mm f/6.9 Imaging APO Refractor
  • Mounting Rings
  • Guiding Rings
  • Vixen-style Dovetail
  • CNC Carry Handle Bar
  • 2.5" R&P Focuser
  • Innovative, patented Bahtinov mask

Optional Accessories:

  • M63-2" Rotolock
  • 1.25" Rotolock
  • Soft Carry Case

William Optics EQ35 Mount Description:

WO-EQ35 PRO Mount offers the versatility of two specific mounts in one system: A fully computerized Go-To equatorial mount and a lightweight photo imaging mount, perfect for travel and DSLR imaging of the night sky.

It is suitable both for beginners as well as experienced amateur astronomers.

In the standard configuration mode with DEC and RA axes, you can use it as a computerized Synscan equatorial mount with Go-To and tracking in both axes with access to 42,900+ objects in the Synscan handset's database.

The payload capacity for visual use is an impressive 23lbs; in this configuration many options for telescope tube assemblies are open to the user.

For traveling you can remove the DEC Axis from the mount together with the counterweight shaft and counterweights, reducing the instrument's weight considerably. In this configuration you can use a simple 44mm dovetail plate with standard 1/4 tripod screw (not supplied) and fit your camera directly using a ball head (not supplied).

With the DEC axis removed, the mount only tracks in RA and you can easily take photos.


  • Positioning accuracy up to 1 arc minute. Accuracy enhanced by software collimation error (mount mechanical error) compensation.
  • High precision stepper motors with 1.8° step angle and 64 micro steps driven.
  • Resolution 0.28125 arc second
  • Slewing speed up to 3.4°/sec (800X).
  • ST-4 type autoguider interface: Supports 0.25x, 0.5x, 0.75x 1x guiding rate
  • Dual or single axis tracking
  • Tracking tate: Lunar, Solar or Sidereal
  • Synscan hand controller with 42,900+ object database containing complete Messier, NGC, and IC catalogs.
  • Periodic error correction.
  • PC compatibility.
  • Synscan handset firmware upgradeable via internet download.
  • Supplied with WO polarscope
  • Latitude adjustment 15° to 65°
  • R.A. worm gear 92.5mm diameter, 180 teeth
  • DEC worm gear 34.3mm diameter, 65 teeth
  • R.A. worm drive 25.5mm diameter, steel
  • DEC worm drive 20mm diameter, steel
  • Payload capacity 23Lbs
  • Stabiliser bar 20mm diameter, steel
  • Counterweights supplied: 2 x 3.4kg
  • Weight of mount head: 4.38kg (3.28 kg with DEC & Bar removed)
  • Reflex tripod, weight:6.3kg, reflex length:59cm
  • Power requirement DC12V 3A tip positive
  • PoleMaster adapter