Jump to content

sgl_imaging_challenge_2021_annual.thumb.jpg.3fc34f695a81b16210333189a3162ac7.jpg

Mounting Camera on top of Telescope thoughts


scaramanga
 Share

Recommended Posts

Hi folks ,

I have a C8 Celestron sitting on a CG-5 Equatorial mount I am thinking that I would like to try and mount my Canon 40d with my fairly substancial Canon L 300mm F2.8 prime lens on top of it for guiding, is this possible ,if so how do I do it?

Or am I wasting my time , I had hoped the fast F number of this lens would work well?

Cheers

Harvey

Link to comment
Share on other sites

If I were you I would do it the other way round. Guide with the SCT and image with the lens. The fast f ratio of the lens will indeed work well and the short FL will require a fraction of the guiding accuracy. When you are up and running you might try imaging at long FL but I think you will see why I suggest the reverse order approach!!

Olly

Link to comment
Share on other sites

Hi Olly,

sorry mate unless Ive misunderstood you I think that is what I was asking , I meant that I wanted to guide with the SCT still attached to the EQ mount and some how mount the camera to the top of the SCT but I am not sure how I would mount it.

cheers

Harvey

Link to comment
Share on other sites

Hi Harvey,

Ah yes, good idea. First tip, don't buy one of these;

Tiltable Piggyback Mount 12"

They are truly awful!

Baader make an upside down Vixen rail which bolts to the top of the OTA using the little black Allen key screws intended for accessory mounting. To this you attach one of their clamps, essentially like a saddle plate. Put the camera on that.

http://www.baader-planetarium.de/sektion/s03/s03.htm

Alternatively you could use the accessory screws on the OTA to hold a home made device of some kind.

Olly

Edited by ollypenrice
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.