Comparison Objects?

[Naemeth]

When you're reviewing, or at least comparing eyepieces, what objects do you all like to compare them on? (assuming the same scope)

[jimmyjamjoejoe]

For clarity/edge performance/ghosting, either saturn/jupiter. For clarity/CA, the moon. For light transmission, any dso really, though m31 is easy since you can use the dust lanes to compare. For colour rendition, a nice double like albireo, or a nice orange star like betelgeuse. For any other abberations, the double cluster does well to fill the fov with stars usually.

[John]

I tend to use a a whole range of objects including close, unequal brightness binary stars, DSO's both large and small, the planets, the moon etc, etc. Faint objects next to brighter ones are a good test of light scatter control - Saturns moon Enceledus for example.

I always try and use objects that I know well though so that I have a "benchmark" of how the object looks before the testing.