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Old 01-04-2020, 08:17 PM
SkyWatch (Dean)
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Join Date: Jan 2013
Location: Adelaide
Posts: 401
Quote:
Originally Posted by JeniSkunk View Post
Dean, looking at the Saxon pages for the eyepieces that come with their 130mm scope, I think the eyepieces might be the same as the ones SkyWatcher uses, modified achromats.

Saxon eyepiece pages
Super 10 - https://www.saxon.com.au/saxon-10mm-...-eyepiece.html
Super 25 - https://www.saxon.com.au/saxon-25mm-...-eyepiece.html

International Astronomy Forum thread - What kind of EP are the stock SkyWatcher 25mm & 10mm?
http://www.astronomyforum.net/telesc...25mm-10mm.html
Yeah, thanks for the link: I think you are right. However, for Brendon's information: the "modified achromat" is an eyepiece with three glass elements (sometimes one element can be acrylic), unlike the plossl, which has 4. This may mean that they can actually show a slightly brighter field than the plossls, as there are less elements and surfaces for the light to pass through. They generally have a relatively narrow field of view: ~ 45-50 degrees apparent field, which is pretty standard for entry level eyepieces, and are usually well corrected for chromatic aberration and quite sharp across most of the field.

Bottom line: they should give a good view for a beginner until you know the difference and want to upgrade to (say) a wider field of view.

All the best,

Dean

(PS: the link to the International Astronomy Forum may not work: the Forum is defunct thanks to a succession of idiot cyber attacks (some people really need to get a life!!!) and a lack of funds to protect the site and prevent further attacks. Most users have now transferred to The Sky Searchers: https://theskysearchers.com )
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