2 inch nosepiece webcam adaptor?

[catman161]

Ho does anybody know if there is such a thing as a 2 inch nosepiece adaptor for the SPC900 webcam? I have the 1.25 inch one but just wondered if there was a 2 inch version on the market?

Cheers

[long_arms]

Hi,

May I ask why you would want a 2 inch nosepiece?

Dan

[haitch]

You're not going to get vignetting on a webcam with a 1.25" due to the small sensor size so if you need to fit it in a 2" focuser just use it with 1.25" to 2" adaptor.

[catman161]

Hi all have found it. Reason I wanted one as my 200P with the TV 2x Powermate in to get flics requires me to have only half the barrel in the focuser draw tube due to not enough travel to gain focus with the barrel fully inserted. As the 2 inch version can go straight into Powermate without the 1.25 inch adapter I will gain that little bit extra needed when using a smaller extension. That's the theory anyway! Will wait and see. If not my back up is to get a friend to machine a bespoke extension of exactly the right length to use the 2 inch adapter with. Thanks for your help.

Found adapter from Bern at Modern astronomy

http://www.modernastronomy.com/accessories.html