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Just wondering???


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Welcome to the forum Roger!

From my experience, red always seems to be the sharpest channel, so yes l believe there is an advantage, provided your camera is sensitive enough in the red part of the spectrum that you're still able to achieve somewhere on the order of 100 - 200 fps (shouldn't really be a problem for a planetary camera with something as bright as the moon).

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Well, it depends really. It’s a good idea to filter the incoming light rather than capturing the full spectrum, but which wavelengths to let through will depend on the seeing. 


When seeing is poor then the longer wavelengths are better as they are less effected by the poor seeing: red or even infra red pass filters are good. 
 

When seeing is good then it can pay off to use shorter wavelengths as they will allow the scope to resolve finer detail. I’ve got good results using green filters in good seeing and even blue filters in excellent seeing. 
 

This is a comparison I did in good seeing a couple of years ago with my old 8.75” F/7.5 Newtonian, all the captures are sharp but the green filtered capture clearly shows the finest detail:

 

F242D887-9365-48A1-8A9D-AB93C4A5CE9D.thumb.jpeg.3d88948676d926eb4d420f20003486fe.jpeg
 

Here is another on shot through a green filter in good seeing with the same scope:

D6AADD64-34B1-4597-878D-F6D1DCBBE02E.thumb.jpeg.c60e0b859498296a6d93426cf5770cca.jpeg

 

 

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On 22/08/2022 at 19:59, CraigT82 said:

Well, it depends really. It’s a good idea to filter the incoming light rather than capturing the full spectrum, but which wavelengths to let through will depend on the seeing. 


When seeing is poor then the longer wavelengths are better as they are less effected by the poor seeing: red or even infra red pass filters are good. 
 

When seeing is good then it can pay off to use shorter wavelengths as they will allow the scope to resolve finer detail. I’ve got good results using green filters in good seeing and even blue filters in excellent seeing. 
 

This is a comparison I did in good seeing a couple of years ago with my old 8.75” F/7.5 Newtonian, all the captures are sharp but the green filtered capture clearly shows the finest detail:

 

F242D887-9365-48A1-8A9D-AB93C4A5CE9D.thumb.jpeg.3d88948676d926eb4d420f20003486fe.jpeg
 

Here is another on shot through a green filter in good seeing with the same scope:

D6AADD64-34B1-4597-878D-F6D1DCBBE02E.thumb.jpeg.c60e0b859498296a6d93426cf5770cca.jpeg

 

 

This tells me something about my typical seeing then!! 😁

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