Hi Guys, I'm curios what "bad" effects a barlow has.
I am contemplating buying a Orion Deluxe 2" Barlow which seems to be a good unit.
I know using a 2X barlow will double my focal length
and 1/4 the amount of light available to view
. I know this effectivly loses 2 stops of light if I were to be imaging anything.
However what I don't know is how this effect the view for visual work. I don't see it being a problem on the moon or bright planets however would it effect the visablility of faint stars in clusters or faint details of nebulas?
I would imagine it would effect these things or does our eye compensate for the difference making it less noticable?
The reason I ask is that I will soon be purchasing some EPs and I'm trying to figure out the best combo.
Thanks Everyone!