Eyepiece and filter choice for skywatcher mak 90mm

[Fish]

(Newbie alert)I have a skywatcher 90mm mak 1250mm(this is my second scope ,the first one was rubbish) it came with a 10mm and a 20mm eyepiece .With the two eyepieces I have I get 125x and 62.5x , From what I have read you can get 60x per inch of app. so this being a mak I presume that I have 180x for a max (approx 3") which is probably a 6.3 ish eyepiece and then for wide field I was thinking of a 40mm .

Advice wanted on what eyepieces to get ,anybody have any first hand xp with this scope with regards to the max magnification.

I would like to get a good filter for saturn and a good filter for nebula so what would give the best results.

Thanks for any advice in advance.

[themos]

I'm also a newbie. Do you have no Barlow lens? A good x3 Barlow or a Powermate should come in handy for your setup and will give you the extra "zoomph". What do the others think?

[Macavity]

They are a very nice scope - Until recently I had one myself. I think your estimation for the maximum magnification ~200x is about right. More than that, the image becomes dim and (UK) "seeing" starts to play a significant part. Since the scope is of long focal length, you can generally use fairly modest (budget) eyepieces. As a start, some mid range (Skywatcher "Super" etc.) Plossls will be a step up from the default (albeit not bad) eyepieces. A series e.g. 6mm, 10mm, 16mm, 25mm (with many variations!) is a possibility. With this e.g. a 2x barlow can explore the intermediate values. Note however that, with a 1.25" diagonal, the lowest power / maximum field will be obtained with e.g. a 32mm Plossl. The 40mm, though usable and lower in power will only give a narrow appartent field of view due to the intrinsic limitations of eyepiece diameter.

Colour Filters are perhaps not THAT essential, and subjective, but you may (like me) be unable to resist. The Antares 1.25" series are reasonably inexpensive. As a general "does all" filter you might rather investigate the Baader "Contrast" Filter, which does pretty much what the name implies - increases contrast, rather than specifically colouring the image as well. For a general review of (colour) filter purposes and (not atypical) slightly lukewarm opinion re. their use see:

http://www.oreilly.com/catalog/astronomyhks/chapter/hack58.pdf

[Fish]

Thanks for the replies, the eyepices that came with the scope have super printed on them and they have a rubber eye cup, they allso look blue as though they are coated.I purchased the scope second hand so presumably these were not the original ones.

It looks like I will get a 6mm ,32mm to add to what I have at the moment then.