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Originally Posted by Starkler
If limited to 2 eyepieces I would choose a 12 and a 30.
The collimation cheshire is a must have, but I would hold off on the barlow until you can afford a decent one like the Orion shorty plus which sells for around $150. Thats one you will keep forever and is far superior to the GS unit.
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I have the Orion Shorty Plus. It does a decent job. I don't have anything to compare it to but there are a number of things I can pick on. Internal reflections on brighter targets (like Jupiter or bright stars), or with brighter objects not in but near FOV, are obvious. It has a blurry field stop, which amounts to usable AFOV reduction by at least 5 degrees (with good Ploessls). So I'm not at all sure that it's one to "keep forever". I just wasn't willing to spend much more on a barlow at this stage, but wanted an apo. Sirius optics sell them for $135, Bintel for $139. Apparently, to get anything significantly better, it's got to be a Powermate. At $300+, it's not for me.