4th May - HA + WL (Filter Comparison)

[Macavity]

Weather still holding in N.Wales (Until Saturday? lol)
Here's a few from what is now... uhm... yesterday!  

Plain WL (No Filter):

Barlowed HA + Barlowed WL (using Solar Continuum):

     

Region of biggest Proms...

[Macavity]

Now back up to full complement re. (sold/lost) filters!
And, since I did this for my own (dubious) benefit? lol

Tried to do a impromptu Baader (WL) Filter "shoot out"!
Many things can vary... my efforts at focussing... the
seeing, so take the results with a large grain of salt?!? 

Like all decent experiments, results confirm theory??? 

Baader Solar Cont is a "Good Thing" re. Barlowed detail?
I think I still prefer plain White Light for FULL Disks? The
SC can blend (my) FD spots to a uniform black blob! 

First up ND1.8 versus Solar Continuum:

  

For interest: O(III) and 7nm H-Alpha. The latter does rather well!
I had modest concerns about my "slightly dodgy" O(III) filter.

  

REPEAT ND1.8 versus Solar Cont (in case seeing etc. changed)

  

[johnfosteruk]

16 minutes ago, Macavity said:

The SC seems to blend the spots to a uniform black blob!

Interesting. I use a #58 or #56 green Wratten (poor mans SC) for WL vis and imaging with the Barlow but not with full disk imaging - because it blends the spots to a uniform dark blob. 

Theyre definitely effective for the close ups and the vis though although I've never published comparison for review!!!

[Davey-T]

Nice experimenting Chris.

Weather still holding in the SE, cloud and wind for the foreseeable future but at least it's stopped raining.

Dave 

[xtreemchaos]

all I use for WL and lunt wedge is a ND moon filter screwed into my barlow  to even the brightness. great shots Chris. charl.

[Pete Presland]

Interesting set of comparisons. I use to use a oiii filter, then a no58 which was better in my opinion. I have now moved to a continuum filer.