Skip to content

Planewave Reducer 0.66x CDK20 / CDK24

SKU 200166
Original price $1,400.00 - Original price $1,400.00
Original price
$1,400.00 - $1,400.00
Current price $1,400.00

Add to Quote

To enquire or to place an order please press the Add to Quote button and add as many products to the quote as you are interested in. Add any questions or comments in the Message field. We will then get back to you to discuss your requirements. Alternatively, give us a call.

Click for further details on ordering, payment and shipping.


This is a reducer designed specifically for flat field telescopes like the CDK. This reduces the f ratio of the CDK telescope 66%. The f/6.8  CDK20 telescopes will be reduced to about f/4.5.

**NOTE – 200166 adapter is also compatible with CDK17 that have 8.81″ back focus.   CDK17 with 10.24″ back focus will use the 125166 focal reducer. See instruction manual for details.