I need a Diagonal.

[SAW]

Hi,

I need a diagonal for my Tele Vue 85 and was going to go for a Tele Vue one. Is there any difference between the enchanced and everbrite ? as I am imaging with a Quark shall I save my money and just buy a cheaper one, will I actually notice any difference if I'm just using it for imaging ?

Thanks. 

[jambouk]

If it is just for imaging I would avoid adding further optical surfaces into the mix and not use a diagonal. 

[Mr Spock]

Yep, imaging is better without a diagonal.

[SAW]

Trouble is I am needing a couple long extensions pieces to get focus so I was hoping with a diagonal it would shorten my set up and balance better in the dec orientation.