Adding a barlow to my webcam.

[Rich N]

Hi All,

Ive been trying to add a barlow to my webcam arrangement on the Skywatcher Explorer 250pds the past few clear nights and i cannot seem to achieve any focus at all with it. Im assuming that the barlow is extending it to far out of the focusing tube. The results im getting without it are pretty decent, just want to get more mag!

Is there anything i can add to solve it or is it my webcam (in sig)?

Any advice would be muchly appreciated

Rich

[Cornelius Varley]

If the barlow is pushing the point of focus further away from the primary and you have run out of focus travel you will need an extension tube. This could be an old barlow with the lens removed or a short extension tube.

Peter

[Rich N]

Thanks alot for your reply..i have a spare barlow tube and i will be testing it tonight.

Fingers crossed

Rich

[valleyman]

Try unscrewing the barlow lens from it housing and screw the lens into the nose of the Camera adaptor , where you would normal screw a filter... that should bring the camera closer than using the whole Barlow