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Canada's top-tier Telescopes & Accessories
  • Navigating Tariffs: Due to the current volatile tariff environment and associated logistics challenges, O'Telescope is unable to fulfill shipments to the United States. Orders submitted with a U.S. shipping address will be refunded, with the payment gateway transaction fee deducted. This restriction does not affect BackyardEOS or BackyardNIKON, which remain available as digital downloads.

    Inventory closeout sale, everything must go.  Up to 35% off. Some conditions apply.

    We are closing our inventory side of the business and focusing solely on software - going back to our roots so to speak. No store coupons required, all prices have been marked down. First come, first served, until quantities last. We are no longer placing orders with manufacturers. Absolutely no rain checks. We reserve the right to cancel and refund orders at our sole discretion. We do our best to maintain our inventory accurate, but mistakes do happen, if you purchase an item that is no longer in stock, you will be refunded. The sale does not apply to some higher-end items such as 10Micron. Prices subject to change without notice. ALL SALES ARE FINAL.

    Occasionally, we find a box under a box under a box in the back of the warehouse with hidden treasures, and when we do, we add these items on the site, so even though you may not find what you're looking for today, it could automagically appear next week.

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DV Series


15 products

  1. $153.93 CAD $205.24 CAD
    1 in stock On sale
    Back Order / Waiting List

    ADM Accessories: Converts V Series mounts to a D Series saddle. 7″ Long, 4″ Wide, 1.25″ thick, Wt. 34 oz.

    INCLUDED ITEMS:

    -1x D Series Dovetail
    -1x V Series Saddle
    -mounting hardware

  2. $162.02 CAD

    Fits D Series or V Series dovetail bars. KS-0 ball head camera mount with quick release plate. 8kg carrying capacity. Dovetail mounted, no tools needed. DPA- 2.5″ Long, 4″ wide, .75″ thick, Wt. 14 oz. Ball head – 3.8″ height, Wt. 16 oz.

    INCLUDED ITEMS:

    -1x DVPA
    -1x KS-0 Ball Head Camera Mount
    -1x 1/4×20 socket head cap screws

    Out of Stock
  3. $105.31 CAD $140.41 CAD
    1 in stock On sale
    Back Order / Waiting List

    ADM Accessories: Fits D Series or V Series dovetail bars. Single axis, 360 deg. camera rotation. Dovetail mounted, no tools needed. DPA – 2.5″ Long, 4″ wide, .75″ thick, Wt. 14 oz. Camera bracket – 1.0″ high, Wt. 2 oz.

    INCLUDED ITEMS:

    -1x DVPA
    -1x Single Axis Camera Bracket
    -2x 1/4×20 socket head cap screws

  4. $126.01 CAD
    6 in stock
    Back Order / Waiting List

    ADM Accessories: Fits D Series or V Series dovetail bars. Adds additional weight for balancing OTA’s. Split clamp design grips the dovetail bar along the entire surface of the saddle and will not dent or scratch the dovetail bar. The dovetail clamp has a large locking knob for tool free operation, spring loaded jaws, anodized aluminum and stainless steel construction. DPA- 2.5″ Long, 4″ Wide, .75″ Thick, Wt. 10 oz., Counterweight- 4″ Rounds, 1″ thick, 3.5 lbs.

    INCLUDED ITEMS:

    -1x DVPA
    -1x 3″ Long 1/2×13 tpi threaded rod
    -1x 3.5lb Counterweight
    -mounting hardware

  5. $69.90 CAD $93.20 CAD
    2 in stock On sale
    Back Order / Waiting List

    ADM Accessories: Fits D Series or V Series dovetail bars. Adds additional weight for balancing OTA’s. Split clamp design grips the dovetail bar along the entire surface of the saddle and will not dent or scratch the dovetail bar. The dovetail clamp has a large “T” handle locking knob for tool free operation, spring loaded jaws, anodized aluminum and stainless steel construction. DPA- 2.5″ Long, 4″ Wide, .75″ Thick, Wt. 10 oz., Counterweight- 4″ Rounds, 1″ thick, 3.5 lbs.

    INCLUDED ITEMS:

    -1x DVPA
    -1x 5″ Long 1/2×13 tpi threaded rod
    -1x 3.5lb Counterweight
    -mounting hardware

  6. $132.32 CAD $176.43 CAD
    On sale

    ADM Accessories: Fits D Series and V Series dovetail bars. Handle – 7.5″ Long between centers, 1″ wide, 2.5″ Tall, Wt. 18 oz as shown.

    INCLUDED ITEMS:

    -1x Handle
    -2x DVPA’s
    -mounting hardware

    Out of Stock
  7. $62.09 CAD $82.79 CAD
    8 in stock On sale
    Back Order / Waiting List

    ADM Accessories:The ADM DVPA Dovetail Plate Adapter attaches to your rings or telescope and accepts either a standard Vixen-style V Series dovetail plate or the wider Losmandy-style D-Series dovetail plate.

    This heavy-duty dovetail plate adapter is black anodized with stainless steel components. It has one counter-bored hole centered on the plate and a second counter-bored hole .5" from the center. They both accept 1/4"-20 socket head screws. The spring-loaded clamping mechanism, along with a set of stainless steel guide pins, holds your dovetail firmly in place once you lock everything down with the large locking knob. It is easy to make adjustments to the position of the dovetail within the adapter...simply loosen up the lock knob a little and slide the dovetail forward or back, then lock the knob down again.  Fits D Series or V Series dovetail bars. Incorporates a split clamp design that grips the dovetail bar along the entire surface of the saddle and will not dent or scratch the dovetail bar. The dovetail clamp has a large locking knob for tool free operation, spring loaded jaws, anodized aluminum and stainless steel construction. 2.5″ Long, 4″ Wide, .75″ Thick, Wt. 8 oz.

    INCLUDED ITEMS:

    -1x DVPA
    -2x 1/4×20 SHCS

  8. $94.51 CAD $126.01 CAD
    On sale

    ADM Accessories:Fits D Series or V Series dovetail bars. Attach the QHY PoleMaster to a D series or V Series dovetail bar. Incorporates a split clamp design that grips the dovetail bar along the entire surface of the saddle and will not dent or scratch the dovetail bar. The dovetail clamp has a large locking knob for tool free operation, spring loaded jaws, anodized aluminum and stainless steel construction. 2.5″ Long, 4″ Wide, .75″ Thick, Wt. as shown 12 oz.

    INCLUDED ITEMS:

    -1x DVPA-POLE
    -1x 1/4×20 SHCS

    Out of Stock
  9. $62.09 CAD $82.79 CAD
    2 in stock On sale
    Back Order / Waiting List

    ADM Accessories: Fits D Series or V Series dovetail bars. Attaches directly to Takahashi or other mounts that have two 8mm tapped holes 35mm apart. Incorporates a split clamp design that grips the dovetail bar along the entire surface of the saddle and will not dent or scratch the dovetail bar. The dovetail clamp has a large locking knob for tool free operation, spring loaded jaws, anodized aluminum and stainless steel construction. 2.5″ Long, 4″ Wide, .75″ Thick, Wt. 8 oz.

    INCLUDED ITEMS:

    -1x DVPA-TAK
    -2x 8mm SHCS

  10. $175.54 CAD $234.05 CAD
    2 in stock On sale
    Back Order / Waiting List

    ADM Accessories: Fits D Series or V Series dovetail bars. Includes two 100mm (ID) adjustable guidescope rings with large delrin tipped thumb screws. Adjustable from 70mm – 90mm. Wt. as shown 34 oz.

    INCLUDED ITEMS:

    -2x adjustable guide scope rings
    -2x D Series dovetail clamps
    -2x riser blocks
    -mounting hardware

  11. $180.94 CAD $241.25 CAD
    1 in stock On sale
    Back Order / Waiting List

    ADM Accessories: Fits D Series or V Series dovetail bars. Includes two 125mm (ID) adjustable guidescope rings with large delrin tipped thumb screws. Adjustable from 70mm – 110mm. Wt. as shown 36 oz.

    INCLUDED ITEMS:

    -2x adjustable guide scope rings
    -2x D Series dovetail clamps
    -mounting hardware

  12. $170.13 CAD $226.84 CAD
    On sale

    ADM Accessories: Fits D Series or V Series dovetail bars. Includes two 90mm (ID) adjustable guidescope rings with large delrin tipped thumb screws. Adjustable from 60mm – 80mm. Wt. as shown 32 oz.

    INCLUDED ITEMS:

    -2x adjustable guide scope rings
    -2x D Series dovetail clamps
    -2x riser blocks
    -mounting hardware

    Out of Stock
  13. $370.01 CAD $493.35 CAD
    On sale

    ADM Accessories: -Alternative to adjustable guidescope rings.
    -Supports guidescope/finderscope with tube rings and dovetail bar for added stability and simple adjustability.
    -Used for co-aligning two optical tubes for viewing the same target or offsetting two optical tubes to find a suitable guidestar for autoguiding.
    -Designed entirely for the Vixen “V” series of dovetail bars to help reduce the overall weight to under 2 lbs.
    -Capable of handling any guidescope under 10lbs.
    -10 degrees of Azimuth adjustment and 5 degrees of altitude adjustment.
    -6.4″ long and adds approximately 1.6″ of height (from top of dovetail on OTA to bottom dovetail on guidescope).
    -CNC machined from aircraft quality 6061 aluminum.
    -All components are anodized aluminum and stainless steel for a beautiful finish and long lasting durability.

    INCLUDED ITEMS:

    -1x MINI-MAX Guider ALT/AZ Aiming Device

    Out of Stock
  14. $89.10 CAD $118.80 CAD
    1 in stock On sale
    Back Order / Waiting List

    ADM Accessories: Pair of 75 mm finderscope rings with 3/8" aluminum screws with large 1/4" Delrin Tips for adjusting. Thoroughly made of stainless steel and anodized aluminum for maximum longevity. An ideal way to mount a guidescope to large Dobsonian rocker boxes or existing optical tube rings. Each ring features three 1/4x20 TPI holes. Center hole is fixed to a 1.25" flat base while the other two holes are each 1/2" from the center and 1" apart from each other. Includes two 75mm (ID) adjustable guidescope rings with large delrin tipped thumb screws. Adjustable from 40mm – 70mm. Wt. as shown 8 oz.

  15. $95.59 CAD $127.45 CAD
    1 in stock On sale
    Back Order / Waiting List

    ADM Accessories: Pair of 90 mm finderscope rings with 3/8" aluminum screws with large 1/4" Delrin Tips for adjusting. Thoroughly made of stainless steel and anodized aluminum for maximum longevity. An ideal way to mount a guidescope to large Dobsonian rocker boxes or existing optical tube rings. Each ring features three 1/4x20 TPI holes. Center hole is fixed to a 1.25" flat base while the other two holes are each 1/2" from the center and 1" apart from each other.

    Fits V Series dovetail bars. Includes two 90mm (ID) adjustable guidescope rings with large delrin tipped thumb screws. Adjustable from 60mm – 80mm. Wt. as shown 10 oz.

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