Quote:
Originally Posted by jezza
Am using a 20mm 2'' meade eyepiece on a 12'' meade lightbridge. The focuser has to be pulled all the way out to achieve any focus at all. The middle of the viewed image is OKish but the view towards the edges goes progressively blurred. Kind of like a Star Wars hyperdrive look. When I place a Hyperion 20mm (21mm?) the image is perfect. Just wondering if the primary mirror could be too close to the secondary? PS have used a laser collimator to achieve primary mirror centre point. (forgot to check return point alignment though)
Any ideas out there?  |
Hi,
If the Meade is focussed then it's focussed. Are you saying that it's not focussed in any portion of the field of view?
I think this says more about the quality of the meade as opposed to the quality of the Hyperion. Since you say the Hyperion gives you good sharp contrasty views then your collimation is probably OK.
Paul