which 32mm EP

[swamp thing]

1363707912[/url'>' post='1873185']

but the ca is what puts me off. i use to have a WO66 that was a sweet little scope i might buy somthing like that on a skytee as i want a 150mak for planets

That would be nice. Mine is a second hand f/4.4 newt picked up for £20 works a treat.

TBH for rich field views CA is not a concern, as you're not goona use it to observe planets and the moon.

[Damo636]

24 Panoptic 1.36° tfov

30mm ES 82° 2.05° tfov

Imho the 30 ES 82° would be a great "speciality" eyepiece, in addition to your 24 Panoptic. I recently sold one of these but will be reacquiring it again as soon as funds permit. The exit pupil at 6mm in my 12" f5 dob (actually f4.9, I've measured the mirror!) posed no problem what so ever. Yes the sky won't be as dark as in the 24 Panoptic, but these babies are all about maxing out the tfov while keeping the exit pupil sensible "ish".

Just my two cents worth :-)

[michael.h.f.wilkinson]

Hi Dan, can't imagine anything that would top the 24mm Pan to be honest. All you would end up with is a larger exit pupil with your fast scope.

How about the Explore Scientific 25mm 100 deg . A 26mm Nagler is neat as well.

[michael.h.f.wilkinson]

but the ca is what puts me off. i use to have a WO66 that was a sweet little scope i might buy somthing like that on a skytee as i want a 150mak for planets

I chose my APM 80mm F/6 with similar reasoning: it is great for wide field, can handle planets and the moon very decently, and can serve as DSO imaging scope. I also use it for white-light solar. An ST120 would beat it in terms of brightness of objects (not width of field), so is the better specialist RFT (as is the 130PDS), but it is not as good in the other roles (though Steve Ward's images with an ST120 on white light solar are very impressive).

[Stargazer_00]

White light solar in a ST120 has no CA whatsoever. The film cuts it all out. I use a baader solar continuum filter as well to boost surface contrast. Obviously I'd prefer a large APO if i could afford it but I cant the ST120 does it's job well enough.

[michael.h.f.wilkinson]

White light solar in a ST120 has no CA whatsoever. The film cuts it all out. I use a baader solar continuum filter as well to boost surface contrast. Obviously I'd prefer a large APO if i could afford it but I cant the ST120 does it's job well enough.

That is not right: white light is white light, Solar film cuts all wavelengths equally (roughly), so unless you use a narrow band pass like the Solar Continuum filter, CA is an issue.

[Stargazer_00]

I do use a SC filter, sure. But I dont notice CA without it. The filter I use is stops the aperture down some, to maybe 90mm, (365astronomy filter) so maybe that's mitigating the CA a little.

[michael.h.f.wilkinson]

I do use a SC filter, sure. But I dont notice CA without it. The filter I use is stops the aperture down some, to maybe 90mm, (365astronomy filter) so maybe that's mitigating the CA a little.

Stopping down mitigates CA a lot.

[Codmate]

I love my 41mm Panoptic.

You won't need a bigger one after that

[Moonshane]

Danny, after having had the giant 31mm T5 in my eyepiece case for a few years now, I reckon your money would be better spent on a RFT.

Scopes like a 10" f4.5 Dob don't really benefit from them IMO. Very few objects benefit from the huge FOV they offer, and the ones that do are just as easily seen in a smaller RFT with a cheaper eyepiece.

These huge heavy lumps serve best in large scopes that really need the extra FOV they provide.

Don't get me wrong they are lovely to have, but for how often they are actually what the doc ordered I would get (and have) a small RFT.

Your 24mm pan coupled with a rich field scope would be a great combo for big faint fuzzies, and IMO better than a 10" Dob with even a 31mm nagler.

This is of coarse only my take, others may differ.

agree with Steve broadly but I'd say a short 6" newt (on a dob mount naturally!). I rarely miss the really wide field but when I do I just look through the finder or use my newly acquired 12" f4 with my 26mm Nagler. this fit's in the Pleiades no problem.