Jump to content

We politely request that members refrain from discussing politics and/or the Brexit debate on East Midlands Stargazers. Let's keep it to the topic at hand... Clouds. ☁️

  • Join the online East Midlands astronomy club today!

    Test

Sign in to follow this  
The Bagman

Camera resolution

Recommended Posts

The Bagman

Hope this has not been asked before. Does a black and white camera have 4 times the resolution of a similarly sized (Mpixel wise} colour camera? Assume colour uses 4 photo site to produce 1 resolution? point


 


Chris


Share this post


Link to post
Share on other sites
red dwalf

With a mono camera every pixel will collect the light, with a colour camera only one or maybe two pixels will collect the coloured light, if that makes sense due to the colour matrix covering the chip, also with mono you can do more I. E. Narrowband imaging.

Share this post


Link to post
Share on other sites
Graham

The simple answer basically speaking  is yes.


A mono camera will produce a more detailed image using the same sub length.

Share this post


Link to post
Share on other sites
Sunny Phil

I REALLY wish someone would bring out a compact digital mono camera or DSLR. The Bayer matrix can be a real handicap at times. In fact the 4 times bit is not strictly true. The Bayer matrix uses twice as many green pixels as red and blue ones. For lunar images, I quite often use the green channel only, so my 24 megapixel camera is operating like a 12 megapixel mono camera. When taking daylight lunar images, I use the red channel and it therefore operates as a 8 megapixel mono camera.


 


Setting a colour camera to "mono" mode does not suddenly reprogram all pixels to be sensitive to luminance only.


 


Of course, what would be REALLY great is to have a camera that is sensitive to hydrogen alpha light.


Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • 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.