Jump to content




Barlow? Crop? Drizzle?


Recommended Posts

I've been checking out the FOV with 450D/120ED combination and it seems some objects won't be all that big on the chip, and I was wondering what's the best way to frame smaller objects better with this scope.

Using a barlow would increase the exposure time quite a lot. Cropping wouldn't increase the resolution. Drizzling I know hardly anything about.

So how do you do wise folks do it? (Apart from using a larger scope...)


Link to comment
Share on other sites

Andrew, I've tried both cropping and drizzling, with the 450d the effect seems to be the same (http://stargazerslounge.com/imaging-deep-sky/88143-m51-reworked.html the first is cropped, the second a x2 drizzle). As far as barlowing is concerned, a TC would probably be a better bet as it doesn't alter focus and is designed to work with the camera, but has the dramatic effect on the increase in exposure time.

And then there's some that really just aren't worth trying... I had a bash at M64 earlier this year and it was so small in the frame as to be a fuzzie, cropping didn't really help as the resolution wasn't there to start with.

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.