PDA

View Full Version here: : Cheap ebay filter wheels


luka
12-07-2017, 07:19 PM
Hi,

Does anyone have experience with the cheap ($120-ish) manual filter wheels available on ebay (http://www.ebay.com.au/itm/Universal-2-5-Position-Manual-Telescope-Filter-Wheel-for-Astrophotography-New/302348466467) (or even cheaper on aliexpress)? How good are they? Do they leak light?

I have seen comments that the cheap manual wheels with brand names like Orion are actually identical, apart from the label.


Considering the prices of the proper motorised wheels, I was thinking of motorising one of those. There are several (https://www.thingiverse.com/thing:2100961) solutions (https://www.thingiverse.com/thing:2023405) for this on the net, including ASCOM drivers and this can be easily done for under $100.

Thanks in advance,
Luka

traveller
12-07-2017, 09:25 PM
You might be better off getting a second hand EFW Luka (there is one for sale at the moment in the classifieds).
Manual wheels are more exposed to the elements and therefore prone to condensation etc. A sealed EFW won't have that issue.
Bo

luka
12-07-2017, 09:57 PM
Thanks Bo. I have seen the one in classifieds but I already have several 2" filters so I need a 2" filter wheel.

The cheapest new one I could find in AU was around $600 or slightly cheaper if shipped from Telescope Express.