Stellarvue RSX Standard Riser Set

Brand: Stellarvue


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Product Details

  • Risers are used to attain the balance needed when imaging with some smaller telescope systems. This is particularly important when mounting cameras to our SVX80T refractors and may be needed with our SVX102T as well. With these lighter telescopes, the relatively heavy camera adds more weight to the rear creating an imbalance. To solve this issue Stellarvue created risers. These Stellarvue risers move the telescope 2.5" above the rail to provide plenty of extra needed clearance for the camera. Then, using a longer rail that extends underneath the camera, the telescope and camera may be moved forward, balancing the entire system on the mount.


    Stellarvue risers (#RSX-SET) are 1" wide, 2.5" high, and work with rings and rails that have either a center mounting hole or have two holes that are between 1.5" and 2" apart. We provide a total of six 1-4-20 screws with our standard risers. Four of the screws are 3.25" long and work with Losmandy style rails; the other two screws are 3" long and work with the Vixen style rail. The Losmandy and Vixen-style rails are different thicknesses, hence the need for two different length screws. The holes in some rail vary so you should always check before installing.

    Thread Type Warning

    Some import telescopes have mounting rings with metric M6X1 threaded holes instead of the standard SAE 1/4-20 size. We, therefore, offer a metric equivalent to these standard risers with screws that fit metric threads. We designate risers with metric screws with an "M" at the end of the SKU number. So if you need risers with Metric screws order the #RSX-SET-M instead of this set (#RSX-SET).

    Bolt Length Warning

    Some telescope rings have attachment holes that go completely through the ring. If too long a bolt is used it could damage the telescope tube so measure this before using. Put the bolt through the rail and the riser block and measure the length of the bolt coming out of the top of the riser block. Make sure your ring is at least this thick.

    These risers lift the telescope and camera above the mount but a longer rail is still needed to balance the system. So we also offer risers with long dovetail rails in either the standard Losmandy D size rail (RSX-L) or long Vixen style rail (RSX-V). We refer to these as "riser sets." These sets include the screws needed depending on the type of rail. The RSX-L comes with the needed four screws and the RSX-V comes with the required two screws. As with the risers themselves, riser sets are also available with Metric screws: RSX-LM for Losmandy style rails and RSX-VM for Vixen-style rails.

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