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Denkmeier IVB Power Switch Star Diagonal R1

Denkmeier IVB Power Switch Star Diagonal R1

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Estimated Arrival: Between May 20 and May 26. *ETA to USA Only

Shipping & Returns: Satisfaction guaranteed 30 day return policy.


The R1 Power Switch Star Diagonal is very similar to the S2. It is Refractor Ready because it includes the necessary OCS Optical Cell which is threaded onto the diagonal telescope side body (seen in the photo) The OCS no longer says "low power" though it is the same optic we have always used. It is in fact the OCS A37.

This must be used for refractors to reach focus with the power switch optics in a refractor. If you own both a refractor and an SCT, this is the proper choice for you to add to the Binotron 27 A La Carte. Your refractor will reach focus at 1.3X/2.3X/3X.

Remove the OCS and your SCT will focus at .66X/1.15X/2X. Includes both a refractor (non IVB) nose and an SCT IVB Visual back and SCT nose with sprocket.


We know that once you've placed your order, you are anxious to receive it! We make every effort to get your order shipped out to you as quickly as possible.

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase. We will process the charges to your credit card and your order will ship within five business days from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at

Standard shipping time in the US is between 3-5 business days, though it can vary slightly depending on the destination. We typically For updates on your shipment you can enter your tracking number here.

We distribute nationwide via UPS and Fedex. Unfortunately, at this time we are not able to provide expedited or international shipping.