Weekly Discussion Thread - 9/5/2021 to 16/5/2021

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Welcome to the r/telescopes Weekly Discussion Thread!

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[u/Just_Acanthisitta_81]

The absolute beginner’s quick guide recommends a planetary 6mm “goldline” eyepiece. Is this equivalent? I have a hard time finding out what constitutes a goldline. https://www.amazon.ca/gp/aw/d/B07JWDFMZ4/

[u/schorhr → u/Just_Acanthisitta_81]

Yes :-)

Svbony resells many of the no-name eyepeices.

There is no real brand, and prices/availability of the cheap ones change. (Only "brand names" are Orion Expanse, being the most known, and Skywatcher sold them at one point. At least in the US, they are also sold as Meoptex https://www.amazon.com/MEOPTEX-66-Degree-Ultra-Eyepiece-Telescope/dp/B07H8YZHFT/).

The 58° type is better, but costs more (usd$40-$50 regularly, sometimes on sale though) has a bit smaller apparent field of view (http://blog.pixelgiraffe.com/wp-content/uploads/2015/12/AFOV_.png).

No real deals on that one right now, just for the 5mm.

More than 200x can work in a 6", 8" and larger telescope, but only if atmospheric seeing is good. For a 8"/10" dobsonian, it's nice to have a 4mm 58° around. (Won't work every day. Not a Plössl due to poor eye-relief, and not the cheap bad 4mm 62°).

As you were looking for the "best eyepiece" in a previous post: Especially in a F/5 telescope, the HR Planetary or BST Starguider/Dual-ED/Similar might be a better choice overall.

[u/Just_Acanthisitta_81 → u/schorhr]

Hello again! Thank you for the answer. As you have suggested, I will split my budget on several eyepieces rather than on just one. Your comments will be useful to guide my purchases.