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Skywatcher Eyepieces

Fathead

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Fathead

Fathead

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Hi I have had my Sky watcher 130m now for over a year and looking at upgrading a few eyepieces. I have the 2 stock sky watcher EPs (10 & 25) but was looking at getting a clestron Omni 32mm plossl and a higher mag one around 7mm. Can anybody say what the difference is between the Sky watcher ultrawide and the Planetary UWA. I like looking at the planets and wanted something with a little more power, I know my scope will take up to a 4mm but I don't think that would be very pleasant to look through as its only  a EQ2 mount and not the most stable.

Any help will be greatful

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Fathead

Fathead

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That's great they look a little pricey for me at the moment I was considering a slightly cheaper version. The sky watcher ones range from £30 - £40 but I have seen the ultrawides on ebay that are unbranded from China and look exactly the same as the SW ones

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John

John

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The ultrawides that you mention above (Skywatcher and the clones) are OK in slow scopes (eg: an F/10 refractor or smidt cassegrain) but the 6mm, 15mm and 20mm show quite a bit of distortion in the outer parts of the field when the focal ratio of the scope gets to F/7 or faster. The 9mm is better corrected than the others in the range and seems to perform well even in an F/6 scope.

I had a set for a Celestron C5 SCT that I had a while back and really quite liked them in that. You can get them for around £25 each on e.bay I seem to recall.

They are certainly better than the stock 10mm and 25mm 3 element eyepieces that come with scopes.

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billyharris72

billyharris72

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A Skywatcher 32mm Plossl was one of my first purchases with my Heritage 130p and I thought it was a great eyepiece. I've since upgraded to Celestron Ex-Cels (the 25mm has almost as good a FOV) but for the money a 32mm Plossl is a good choice.

At around £20 a pop the shorter SW Plossls are also good value for money. The 4mm is a bit short for eye relief, but perfectly usable provided you don't need to wear glasses. If you need more eye relief then the BST Explorers have a great reputation on here, and I'd assume deservedly so. For planets and high magnification lunar I'd say go for a 4 or 5mm EP, or maybe an 8mm with a Barlow. That would give you more options, the longer one probably supplanting the (okay but not great) stock 10mm EP for most purposes.

Billy

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Fathead

Fathead

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That's great  I have upgraded my economy SW barlow for the SW deluxe (if it really is deluxe) x2 barlow lens  which I was advised would be a better choice so 'll look into a 8mm plossl EP and use the barlow with it after getting my next purchase of a 32mm EP.

I have decided to try the SW UWA Planetary eyepiece 6mm from Wex photography (£35) so waiting for that to be delivered then give it a try and ill let you know how I get on.

I was looking into getting a china clone ultrawide 15mm but not sure now after what John said as my scope is f/6.92 and don't really want that much distortion so may just stick with a normal plossl, probably a celestron Omni has I have been told they are great EPs for the price.

Thanks for the advice looks like ill be getting the whole celestron Omni plossl range now.

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