PlaneWave Logo White
0
0 Items Selected

No products in the Quote.

a
M
M
0
0 Items Selected

No products in the Quote.

Cdk20 F7.77 Lens Group Png E1614983051338.png

CDK20 F/7.77 Lens Group (Converts CDK20 F/6.8 model to F/7.77)

SKU: 2002010 Categories: , Tags: , ,

$1,400.00

This is lens group is designed to convert a CDK20 f/6.8 to f/7.77. The original lens group is unscrewed from the backplate of the optical tube and replaced with the new lens group.

  • Adds 1.79″ of backfocus to the optical tube for those requiring additional imaging train components.
  • Increases focal length to 3951mm, which is an additional 497 mm of focal length compared to the standard CDK20 f/6.8.

Related products

ImageNameSummaryPriceBuy
200399.jpg
Visual Adapter – CDK20/24

This 3.5″-2″ Visual Adapter, for the CDK20 and CDK24, slides into the optional 3.5″ Hedrick Focuser.

  • The adapter steps the 3.5″ opening down to 2″ for standard 2″ accessories.
  • The adapter also adds some additional spacing to optimize the use of a 2″ diagonal so focus is reached with most eyepieces.
$160.00
Ddp 8004.jpg
2 inch Mirror Diagonal
  • The Tele Vue Everbrite has a Pyrex mirror with 1/10th wave accuracy
  • Dielectric, non-metallic coatings have 99% reflectivity across the visible spectrum
  • Resulting images through this diagonal are brighter and “whiter”
  • The Everbrite’s body is machined from one solid block of aluminum for permanent alignment
  • 2″ filter anti-reflection threads in the diagonal let you attach filters to the diagonal instead of moving from eyepiece to eyepiece
  • Brass clamp ring holds 2″ eyepieces and accessories firmly in place without marring the barrels
  • Included 2″ to 1.25″ HiHat Adapter is of same high quality in make and materials
$394.00
600351.jpg
SBIG FW8G-STT adapter$160.00
200361 1.jpg
SecureFit Spacers For CDK 14,17,20, & 24

When you need a secure way to attach a CCD camera at the image plane of a CDK telescope, the Secure Fit Spacers get you the optimal back focus spacing. These spacers attach via four screws to the PlaneWave Hedrick and IRF90 Focusers.  When coupled with a PlaneWave SecureFit CCD Adapter, they practically eliminate slippage, movement, and equipment drops. The spacers come in eight different lengths: 2.1″, 3.8″, 4.5″, 5.2″, 5.9″, 6.75″, 7.5″, and 8.25″.

These spacers are made for the CDK14, 17, 20, and 24 and do not work with the CDK12.5.  The CDK12.5 Secure Fit Spacers have a different bore size.

$250.00 – $300.00