Goldfocus Collimation mask?

[Russe]

Is anyone using this?

GoldFocus Plus Collimation System

The GoldFocus Plus Collimation Mask (shown at the right) and Analysis Software are designed to measure an explicit objective quality of collimation and focus.  The GoldFocus Analysis Software displays the objective measure of the image's quality of collimation and focus on the astronomer's computer screen in real-time, so that there is no guesswork regarding collimation or focus.

The image at the far right is a snapshot of the GoldFocus Analysis Software which shows the measured quality of collimation and focus real-time to assist in collimation and focus adjustment.  In this example, the focus is near-perfect and collimation is near-perfect (near zero) in all directions.

Advantage:  The quality of collimation and focus is objective, very accurate, not biased by diffraction limits nor astronomical seeing, and displayed real-time to the astronomer.  The GoldFocus Plus Collimation Mask is the only collimation technique which sees and measures collimation in the exact way that your imager sees it.

Disadvantage: Requires the GoldFocus Plus Collimation Mask and Analysis Software.