Lodestar. Don't need to say more. Look for Chris Stark's article, and you'll see all the graphs and comparisons.
The Orion SSAG is OK if you use it in a densely star-populated area. Take it out into areas outside that, and you'll have a HARD time guiding. For instance, imaging the Glaxy M83: with the Orion SSAG, I had to take the rig well off target to find a star it could not only see but guide from sufficiently. With the Lodestar, honestly, I could have guided off the galaxy itself!!! The Lodestar is VERY sensitive, and picks up a lot of faint stars.
My entire imaging rig is Starlight Xpress, and I could not be hapier. Super products, backed by incredible customer support.
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