Planetary Filtes

[Earl]

If I recall planetary imaging filtes do not need to me the same quality as the DSO ones, is this correct?

[kev]

I would have thought that was incorrect as you are looking at finer detail so opticalvquality is even more important. (?)

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[si@nite]

If I recall planetary imaging filtes do not need to me the same quality as the DSO ones, is this correct?

As said in the above post, its very important to use top quality filters that cut ir & are parfocal to get good detail at high focal lengths!

[Zakalwe]

As said in the above post, its very important to use top quality filters that cut ir & are parfocal to get good detail at high focal lengths!

I'd agree with this. Imaging a fast moving object like Jupiter needs the minimum of "downtime" between filter swaps. I use Baader filters and they are parfocal enough not to require a change in focus at f25-ish