Jump to content


M51. Nowhere near as good as Helen's but...

Recommended Posts

... I'm only using a webcam. Pity about the framing and also the blue from the on-chip amplifier. I'll have another crack tonight.

40x25s, Explorer 200, K3ccdtools, registax, PSP7 (all the free stuff)

A question about binning. If I reduce the resolution of the webcam from 640x480 to say 320x240, is this the same as 2x2 binning?



Link to post
Share on other sites

For an SC1 web-cam DSO image, I'd say that was pretty Damn good Steve.

You can't really compare the SC1 with the camera that Helen used, so take the credit for that result.

I'm sure that a dark frame subtraction would remove the 'amp glow' from the image.

Not sure what effect reducing the reslolution has with the SC1, but my guess is that it would not be the same as 'binning'. I'm somene will provide a definitive answer for you.


Link to post
Share on other sites

Cracking image - better than I ever got with my SC1!!!

Changing the resolution from 640x480 to 320x240 is exactly the same as binning - it also have the same bonus (more sensitivity).

But be careful - it has to be 320x240 not the setting in between - that DOESN@T have the same effect.

Take some darks with that and you've got your self a cracker!


Link to post
Share on other sites

Thanks for the comments guys and gals. You are too kind and I am too self critical.

Ant, thanks for the confirmation re binning. I'll try it out (when the fog clears).

I did subtract some darks (only 2 or 3 though - must take a few more next time).

Thinking about it, it may not have been amp glow but reflected glare from the laptop.

Thanks again.


Link to post
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.