What is Reddit's opinion of SVBONY SV135 Telescope Eyepiece Zoom 7 to 21mm 1.25 Inch Zoom Eyepiece Fully Multi Coated 6 Element 4 Group Zoom Lens Telescope Accessory for Astronomic Telescopes?

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Hey OP! I too picked up this same model for ~$60 on Craigslist earlier this year (see my post history). It has been AWESOME so far. My #1 recommendation is to buy this lens, you will be very happy you did. I https://www.amazon.com/SVBONY-Telescope-Eyepiece-Astronomic-Telescopes/dp/B07XZ6DY18/ref=mp_s_a_1_3?crid=1C8EXLJQUH9QN&keywords=1.25+zoom+eyepiece&qid=1659384620&sprefix=1.25+zoom+lens%2Caps%2C2227&sr=8-3

I also have a z130. I got this eyepiece from Amazon as well as a 25% moon filter. I wish I had gotten a lower % though as the moon is still VERY bright with the 25% filter on.

I really like the zoom lens because you can find objects then just zoom in on them instead of changing eyepieces and having to re-align or search for the thing you JUST FOUND at a lower mag. I also bought a laser collimator but only use it to play with my cats. It's not nearly accurate/precise enough to collimate properly so I wouldn't bother getting one.

Hmm...That doesn't look like a zoom/adjustable focal length EP to me. Are you sure the eyecup isn't what's adjustable? Lots of EPs let you twist up the eyecup to help with eye placement, but that doesn't change the focal length. Typically zoom EPs will have a scale on them that shows the focal range and what it's currently set to. Something like this

I started with this https://www.eyesonthesky.com/tutorials/diy/2x4-tripod/

Along with this

SVBONY SV135 Telescope Eyepiece... https://www.amazon.com/dp/B07XZ6DY18?ref=ppx_pop_mob_ap_share

Add a Barlow and a moon filter , do the shroud mod. https://youtu.be/xyhViri1utU And you have a pretty damn good scope, I bought mine a few months back and am totally happy with it after these mods and accessories 😀

I have a z130 as well. I got this eyepiece from Amazon and I love it. It's literally the only eyepiece I use now.