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Jupiter IO Transit 12-10-26

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How to compare ED vs APO

Started by apodaca, 12/06/2004 09:40PM
Posted 12/06/2004 09:40PM | Edited 12/06/2004 09:42PM Opening Post
While its easy to compare Maks and SCTs to APO refractors in terms of contrast (readily available in writing). The comparison between a good ED doublet vs an APO is not very clear. Assuming all other errors are negligible.

Anyone want to shed some light on this?. How do fine planetary details compare vs deep sky etc. What exactly do you gain from that last bit of color correction?