Jump to content


Coloured filter with Jupiter


Recommended Posts

What kind of webcam?

First of all, you probably need an IR-UV-cutoff for the one shot colour images (assuming the IR filter on the webcam was removed --as it normally is if it was implemented on the lens), or you'll have very unnatural colours; you might in addition try some filters like a Baader Moon&Skyglow to make some features more apparent but you'll have to tweak the RGB colour balance a bit.

But if you want sharper images, it may actually be interesting to use an IR-*pass* filter (or something like a Wratter #23 light red to a #25 red) to get a luminance channel that is less affected by the seeing.

Of course, if you have a monochrome webcam, you'll be snapping three channels of R, G and B plus probably a luminance with a rather narrow deep red or IR filter.

Link to comment
Share on other sites

For webcams for color you use IR/UV cut. And you can also use infrared filters like Baader Ir-pass or Astronomik Pro Planet 742 - with those you get false color tint - you stack that and convert the image to monochrome nice sharp image (as infrared is colorless). You can also try making Ir-RGB out of that Ir image and color image with the Ir/UV cut filter.

Link to comment
Share on other sites

In reality you don't need any filters at all with a colour camera. I only recently began using an IR/UV cut filter, and still don't use it all the time. Mostly you will be making adjustments to the colour in the final stages of processing in any case

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.