Beginner question - what scope?

[wormix]

Good morning everyone, 

I fancy giving solar observation a go this year so was considering purchasing a solar filter for my scope. 

Firstly, are there any I should go for over another, and what to to steer clear of?

 

Secondly, which scope is most suited? I gave a fair few in my repertoire;

SW ST80

Meade ETX90

Meade ETX125

SW PDS150

Orion XT10 

 

I was thinking that the ETX90 would be the best bet, but is there a reason why one of the others may be more suited?

 

thanks

Gareth

 

[Merlin66]

Garett,

The ETX 125 fitted with a Baader Solar Screen would be an ideal white light solar observing/ imaging system.

Seeing conditions don’t always allow much benefit for larger apertures.

 

[wormix]

Thanks - is there a benefit going larger aperture than 90mm? 
 

I would have thought that the extra light grab of a bigger aperture isn’t a thing with solar. Is it just about resolution?

 

ta

[Merlin66]

Gareth,

The sweet spot for solar seems to by around 100 to 120mm aperture, based on local seeing.

The ETX125 would be a good compromise.