This is the first Zoom i have bought. I own the Baader 24mm Hyperion which is a gorgeous eyepiece.
So coming from that to the Zoom wasn't a big step. Thing is..It is.. The zoom is very light weight. It covers all my viewing needs on my Lunt LS35THa scope and doesn't stress the diagonal or Helical focus action.
The image quality just blew me away. The solar disk is very bright. No dimming even at 8mm The features just popped into view and i didn't need to touch the focus at all.
if your looking at a Ha scope then buy this as well as it gives you everything you need in a light package.

Build quality is spot on. The click stop motion is tight with no slop.

Bought on a recommendation from the store. Knew his stuff because this lense is brilliant. Can't wait to get a camera on it. Feels really well built.

This level of engineering and polish makes this eyepiece a real bargain. Three different eye cups are included for every preference. The zoom is continuous and not just the focal lengths noted on the side, one can get the magnification JUST right for your area of interest. What's not to like.
This is a great choice for double stars and especially the moon. Some may prefer larger fov for the faint fuzzies, but for everything else you won't be disappointed.

I already owned the Mark III version of this great eyepiece and normally I wouldn't have bothered upgrading but due to FLO's great limited time offer, I sold on my Mark III and bought this Mark IV version along with the matching barlow and I can confirm that this is well worth the upgrade. A much more manageable size than the III and lighter too. Same great image quality and my own opinion is that the clickstop mechanism is better. I've got a 120ED refractor and I'm down to just 2 eyepieces, this one and a 40mm Swan. For my purposes, when the zoom eyepiece is this good then I don't really need any other primes. The only negative is that the FOV is a bit narrower at the 24mm end.

If you are looking for a zoom eyepiece without compromise, then this is it!

I have shied away from zoom eyepieces since my first view through a 'high quality' 1960s zoom way back when. However I had a chance to look through a Hyperion MK 1V Zoom recently and that changed my mind. With my 11" SCT I get 119x - 350x with a twist. The eye relief is very good and also adjustable for comfort, comes with an optional eyeguard and zooms very smoothly. Distortion is minimal for this form of eyepiece and it certainly serves a place when viewing the moon and planets, my primary target for its use. I have a lot of expensive eyepieces that would fill the bill and being a fixed focal length might outperform the zoom, probably will to a degree. Then again I dropped a $300 eyepiece a few weeks ago, fortunately hitting the grass rather than the paving. With the zoom changing eyepieces is minimized and so is the risk related to dropping one. This came with a 2" adapter with a 1 1/4" central endpiece. Thus it can be used in either 1 1/4" or 2" eyepiece holders. However the 2" adapter isn't threaded for filters but I do have all I need in both 1 1/4" and 2" so no loss. For someone who may use this as a primary eyepiece, the 1 1/4" filter threads will cut the cost of very expensive filters like the L G2 UHC! I've given this 5 stars and also FLO a best buy! Here in the states these sell for $340 + tax so a $100 savings to me! Can't beat the deal and the eyepiece is already a proven winner.

I purchased this Baader Hyperion Zoom Mk IV to replace the earlier model Mk III that I sold several years ago when down sizing my collection. I have since regretted that decision. The new version is still made of quality material and is much lighter. I use this on a new GSO CC6 with great results. Use has been limited so I will write a mode detailed review at a later date. Eyepiece was packed very well and shipped quickly. I am very pleased with this purchase.

I spent much time researching a zoom lens, deciding on this. It does not disappoint.

First use of this with our StellaLyra 8” Dob, treated as 1.25” lens and no problems focusing added Barlow again no issues with focus. Just what me and my daughter needed, zoom out find thing, then zoom in - Orion Nebula Trapezium which for a couple of new scope users was really good to see. Happy 60th to me!

After a great deal of deliberation I eventually decided to find out if one eyepiece really would meet most of my needs - It does!
I think it's biggest benefit is that it leaves me free to focus (sorry!) on what I have set the scope up to see and not on ferreting about in the dark for other eyepieces - I should have bought one ages ago.
The quality of the optics is superb and having compared it against several other (single focus) eyepieces I can confidently say that you really do get 5 excellent eyepieces in one package. I bought the matching Baader 2.25x Barlow to go with the Zoom and would recommend that you do the same - they are a perfect pairing.
The delivery from First Light Optics was immediate and first class.

So glad that i finally caught these being in stock as they sell like hot cakes. The Zoom mechanism is silky smooth with just the right amount of click at the predetermined focal lengths. The image is clear and concise out to the edges, with plenty of contrast. All in all it’s a pleasure to use with just a small focus adjustment needed when changing the focal length