-
RB Focus Replacement Panel for eXcalibur V3.0
This RB Focus Replacement Panel is designed exclusively for the eXcalibur V3.0 motorized flat field panel, offering a direct-fit solution in sizes from 80 mm to 415 mm. It allows you to replace a damaged component or adapt your existing V3.0 unit to a new telescope, with specific compatibility determined by your unit's motor: the standard motor supports panels up to 245 mm, while the HD motor is required for panels of 270 mm and larger.
A Direct Replacement for the eXcalibur V3.0
Engineered by RB Focus as a first-party spare, this panel is designed specifically for the eXcalibur V3.0 for a precise fit and full compatibility with the system (within the motor limits below). Whether your original panel has been damaged or you've changed telescopes, this kit provides a straightforward path to restoring your flat field calibration workflow. The kit includes a new telescope mounting base, ensuring a secure and stable installation on your new optical tube.
Motor Limits: 245mm Standard vs. 270mm+ HD
Before selecting a new panel size, you must verify your eXcalibur V3.0's original motor configuration, as this determines the maximum compatible panel size. Units originally purchased with a panel up to 245 mm have the standard motor and cannot be upgraded to a larger size. To use a panel of 270 mm or greater, your unit must have been originally configured with the HD (Heavy Duty) motor, which only came with factory units of 270 mm or larger.
-
Standard Motor Limit: If your current panel is 245 mm or smaller, you can only replace it with another panel within that same size range (up to 245 mm).
-
HD Motor Required: An upgrade to a 270 mm, 300 mm, or larger panel is only possible if your V3.0 unit was originally purchased with a panel of that size class.
-
Will this RB Focus panel fit my eXcalibur 4.0 or eXcalibur Lite?
RB Focus makes it specifically for the eXcalibur V3.0 and does not list the eXcalibur 4.0 or Lite.
Can I upgrade my 206mm eXcalibur V3.0 to a 300mm panel?
No, this is not possible. Your 206mm unit was built with the standard motor, which can only handle panels up to 245 mm. The 300 mm panel requires the HD (Heavy Duty) motor, which is only present in units that were originally sold with a panel of 270 mm or larger. You would need to purchase a new, complete eXcalibur unit for the 300 mm size.
How do I know if my eXcalibur V3.0 has a standard or HD motor?
The motor type corresponds to the original panel size your unit was purchased with. If the original panel was 245 mm or smaller, you have the standard motor. If the original panel was 270 mm or larger, your unit has the HD motor.
Does the RB Focus replacement panel kit include mounting hardware?
Yes. The kit includes the essential telescope mounting base required for a direct and secure installation onto your telescope's dew shield or optical tube opening.
I have a new refractor with a 130mm dew shield. Can I use this panel to adapt my old eXcalibur V3.0?
Yes. As long as your original eXcalibur V3.0 unit had a panel of 245 mm or smaller (and thus has the standard motor), you can purchase the 130 mm replacement panel to adapt it to your new telescope.
Why would I need a replacement panel for my eXcalibur V3.0?
There are two primary reasons. The first is to replace a panel that has been accidentally damaged. The second is to change the diameter of your flat field system to match a new telescope you've acquired, allowing you to continue using your existing eXcalibur V3.0 motor and control unit.
-
| Fits |
RB Focus eXcalibur V3.0 |
| Sizes |
80 to 415 mm |
| Includes |
Telescope mounting base |
| Standard motor |
Panels up to 245 mm |
| HD (Heavy Duty) motor |
Required for panels of 270 mm and larger |
-
-
eXcalibur V3.0 replacement panel
× 1
-
Telescope mounting base
× 1
-
RB Focus 2-Year Warranty
