I purchased this pair of Telesar 2" polarising filters to vary the intensity of light transmitted when observing the Moon. By rotating one filter in relation to the other, light transmission varies (from about 2%-60%).
Each filter is as new with plastic case & box.
As both of my current scopes are fast f/5 Newts, I mostly use a 1.25" 13mm eyepiece for observing the moon, so have now switched to 1.25" polarisong filters.
These 2" polarising filters are better suited for tweaking moon glare on a slower scope (eg. f/10 SCT, or a Mak-Cass), where a 2" wide angle eyepiece is used for Moon obs.
$45 including postage within Aust.
Please send a PM if interested.
Cheers,
Jeff
Last edited by Jeff; 30-05-2008 at 03:48 PM.
Reason: Sold.