Jump to content


Is the Sensor Square ?


Recommended Posts


Random question, i use an ummoded Cannon 450D with my Skywatcher Explorer 250 OTA - does it matter which way I orientate the camera or is it simply good practice to orientate the same way every time ?


John B

Link to comment
Share on other sites

It wont make any difference to the light distribution as it's a cylindrical light path. The only thing that can happen is some of your objects end up in a strange angle

Most people put cameras in at either 0 or 90 degrees, depending on what object you are imaging, but of course there is no rule about this and some nice framing can be done with certain objects as certain angles

Take M31 for example, most people have it at a square angle, but it can look quite good if you can get the angle right to make it appear flat across the image

Here is one from Rogelio Bernal Andero:


Link to comment
Share on other sites

I like to stay orthogonal if I can frame the image because my flats are more durable over several images and doing mosaics, something I do regularly, is far, far quicker to set up. But otherwise, let the composition of the image decide.

Rogelio has the luxury of an enormous 11000 chip but most of us have to mosaic M31 or squeeeeeeze it in on the angle!



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

  • 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.