Chromatic aberrations, 4 inch refracfors: No CA - 100 F9 FPL53 doublet - 0.981 F9 FPL51 doublet - 0.957 !!!!!!!!!!!!!!!!!!!!!!!!!!! F10 achromat - 0.785 F6 achromat - 0.650 FPL51 glass performs very similar to APO classified FPL53 and much better than simple achromats. With FPL51 it is a semi-APO or ED but in reality it is very very close to APO FPL53 glass. Nice review anyway :)

Interesting video. Svbony sells the 102 ED for 500 to 600 USD, all other companies sell this version for 750-850 $. It weighs just 4.0 kg and it is not a simple achromat, it's actually a semi-APO having FPL51 and Lanthanum glass. I own the Svbony 102/714 mm for 6 months now, previosely I had a Bresser 102/1000 mm F10 achromat and the Svbony 102 ED has a much better optical quality and performance. Also the 2 speed focuser is infinitely better than the ones used on simple achromats.

A side by side image comparison on the planets or DSO with the Svbony 102 ED vs the Skymax 127mm would be very interesting :)

Просто класный рефрактор! Наилучшее соотношение цены и качества!

I've been umming and aahing over this scope for a while. I can get the 102 ED for about £460, with the flattener/reducer, which is insanely cheap. For £100 more, you can get dew heater, carry handle, dovetail, bahtinov mask and guide scope, which is mad. I've watched a large number of vids about it and will probably bite the bullet and buy it in a month or two. Cheers for the review Ollie!

Wow nice reviews with great captures and processing, will share it thanks so much 👍

Great review Ollie!. Clear Skies!!

Those comments make a lot of sense - had not thought of this previously. Food for thought.

Great review Ollie it's always good to hear how people have got on with new equipment after a few months use not straight out the box would be interesting to see how it performs on the planet's and moon with sharpcap live stacking

Looks like a great scope for the price and it produced some nice images Ollie. Especially looks good for solar imaging as those solar images you showed had very nice detail.

Never EVER apologise for getting a new scope mate! 🤣 Awesome review and an achro works just great for Solar! I grabbed a 127mm Bresser for under 300 quid and it’s brilliant on the Sun…have fun Ollie! 🔭📸

I've been using this scope for almost 2 years. Primarily DSO astrophotography with some visual use. I have zero complaints.

I've been using one of these as my main imaging scope for a year now and it is very impressive for the price. I have it paired with a 294m and simple ZWO filters and it excels at NB imaging. With LRGB imaging you will see some blue halos but an Astronik L3 filter cuts them by half. I bought mine for less than $1000Cdn and it is worth every penny. For me it was a choice of this and a small SCT for galaxy hunting or a triplet. I haven't regreted my choice yet, having more flexibilty and the right tool has opened up more options than a single scope solution.

Time for me to dust off the Orion 120mm F5 Doublet. I have it in the corner of my room. Can't remember why I put it away.. time to get it mounted. Great video Ollie!

Thanks for the verification of the theory that a good ED doublet is "good enough" for working with a monochrome camera and filters. I own this 102ED myself, and I am planning to add a mono camera and filters *ouch* instead of getting a triplet/APO

Hey mate an ED scope isn't really an Achromat not quite an APO but not quite an Achromat. Achro->ED->APO in terms of Quality

Payload wise, I use my HEQ5 and askar 120 apo, and guiding is 0.6 arc sec, although I did have to buy an extension fo0r the counter weight shaft

Nice review mate the scope you have is almost identical to the Altair astro 102 EDR I own only difference is mine has the FPL 53 glass, I think TS optics photoline is pretty much the same to so probable all made within the same supplier I'm guessing. I use the SVbony reducer with mine as it were far cheaper that the TS optics one & it works a treat.

I see the tilter between the quark and the camera, what don't you like about that one and what would you use instead?

Hi, great video. I am looking into a 122mm svbony and i have 2 color ZWO cameras. And 122mm would sit on AM5 or AM3. Do you think the scope is good value? Sure seems so.

Did you happen to buy it off gumtree and how much did you get it for? I saw it listed a few months ago for 800 aussie with a metal case and field flattener 😂 I ended up buying directly from Svbony and it is my first proper scope for astrophotography. Pairing it with an unmodded Canon 6D II unfiltered does result in some purple fringing and I'm curious to see how it'll perform in mono LRGB. In theory the R and G channels should be tack sharp but stars might be bloated in L and B. A long pass filter (fringe killer/ Astronomic L-3?) should fix the L channel and I wonder how well the scope is going to perform in the B channel when it's focused separately. Most B filters have cutoffs at ~400nm so they might still result in bloated stars. The only B filter that I know of with a cutoff above 400nm comes from Chroma (425nm) but they're really expensive. According to work from other users on Astrobin CLS/ UHC filters seem to fix the problem entirely as they block wavelengths

just a question about the doublet, when putting the flattener reducer on it does that now make it a triplet 🤔

Nice review, like

I have my ASI533 camera in it's level orientation so that the top of the image framing is pointing straight up. That results in my EFW to be pointing out to the side. For balancing purposes I would prefer the EFW to be pointing up like in this video. But that would change the rotation of my camera to an arbitrary orientation. Question is: Does camera orientation matter for PA and/or GOTO functionality?

After watching yours and other reviews of this scope. I've placed an order incorrectly. I've ordered 503 102 bundle and don't think it includes the scope. I'm reaching out to reviewers as svbony aren't responding to my messages. Thanks if you can help with any means of contacting them.

Got one from Temu for $270 Canadian