SVBONY SV550 APO Refractor Telescope - One Small Upgrade, One Giant Leap

SV550 122 F7 APO Refractor Telescope for Deep Sky Astrophotography

The SV550 APO Triplet refractor is a compact refractor with 122mm aperture, f/7 focal ratio and 854mm focal length. It is a great travel telescope for astrophotography and observation. The OTA weighs only 6.44kg/ 14.18lb, easy to carry out when fitting into the carrying case.

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Superior Performance

1. The APO triplet refractor features a 122mm aperture and 854mm focal length,which is an absolutely upgraded version of the SV550 80mm. The refractor gathers more light, and offers more clear and detailed images, suitable for deep sky photography and observation, for galaxies, nebulae, star clusters and even some fainter deep sky objects, due to the higher limiting magnitude.

2. The gear ratio of the dual speed 2.5-inch toothed focuser is 1: 10, which makes it easy to achieve accurate focus. The dual speed focuser can provide two focusing speeds by using a set of co-axial knobs, for fast focusing and fine focusing.

3. The length of the dovetail is as high as 300mm, longer than the length of most dovetails. It can maintain the balance to the greatest extent, and it will be more convenient in the adjustment process.

4. The entire tube rings have 26 screw holes + a mounting screw handle. Such tube rings with so many screw holes can be compatible with more equipment installations, like Smart WIFI device, guide scope, astronomy camera etc., meeting various needs of installations.

FPL-51 Triplet Apochromatic Lens Structure

FPL51 Triplet > FPL53 Doublet -- Just For Better Clarity

The SV550 122mm adopts a FPL-51 triplet apochromatic lens structure which contains one piece of ED glass. The triplet lens provides better correction of aberration and significantly reduces chromatic aberration and enhance the clarity and sharpness.

R&P Dual Speed Focuser

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The gear ratio of the dual speed 2.5-inch toothed focuser is 1: 10, which makes it easy to achieve accurate focus. The dual speed focuser can provide two focusing speeds by using a set of co-axial knobs, for fast focusing and fine focusing.

Aluminium Alloy & CNC Machined

The SV550 refractor is designed with Aluminium Alloy & CNC Machined, which makes it have high quality for harsh environments and longer lifespan.

**Compatible With 2-inch Interface & M63*1 Threads**

The SV550 refractor is compatible with 2-inch and M63*1 accessories. The front is a 2-inch adapter for connecting a camera or 2-inch accessories; Rotating off the adapter, here threaded the M63*1 threads, for connecting the SV209 field flattener or other M63*1 accessories.

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Lock Screw--Tighten The Lock To Prevent Focus Issue

The entire tube rings have 26 screw holes + a mounting screw handle. Such tube rings with so many screw holes can be compatible with more equipment installations, like Smart WIFI device, guide scope, astronomy camera etc., meeting various needs of installations.

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For EAF Installation

This SV550 122 APO is compatible with EAF focuser. To install the EAF, first you should remove the screw completely as shown. Then look inside the hole and slowly rotate the focuser until you see another set screw inside the hole. This screw actually secures the focusing knob to the shaft. Insert a wrench and loosen this screw. Note that there may be two of these screws, so rotate the focusing shaft one turn to be sure. The focus knob will slide off after that.

The Overview of The APO SV550

1. A 122mm aperture upgraded-An aperture upgrade, a big step stride
2. FPL51 Triplet>FPL53 Doublet-Just for better clarity
3. Multifunctional ring tube-Unlock more measures, experience diverse pleasures

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For Visual Observation & Astrophotography

The f/7 SV550 APO OTA Refratcor 122mm is a great travel telescope for both visual observation and astrophotography.

Learn more Collocation Schemes for SV550 122MM, Click https://www.svbony.com/blog/sets-for-sv550-122mm-visual-or-photography-svbony/

3 reviews

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Body of Review (1500)

Love this telescope

Dudley Eirich on Nov 18,2023

I have been doing astrophotography for a little less than two years. I started out with an 8 inch Schmidt Cassegrain style telescope (SCT) but I wanted a telescope with a wider field of view. I decided to order the SV550 80 mm refractor telescope from Svbony and loved it. So when SVBONY came out with the SV550 122 mm telescope and I saw some video reviews, I decided to order one to replace the 8 inch SCT reflector. I couldn't be happier with a telescope. It is a little on the heavy side (14 lb/6.4 kg vs 12 lb/5.4 kg for the SCT) but it's not too much for a senior citizen like me to handle. It has a nice long dew shield that extends and retracts smoothly. I use the manual focuser with a Bahtinov mask as a focus aid. It dials in smoothly and maintains focus once set. With the 1.0x field flattener, the stars are sharp and round points of light all across the field of view. In comparison with the 8" SCT with a 0.63x focal reducer, the quality of the images has improved greatly. In comparison with the SV550 80 mm telescope, it has over twice the light-gathering capability, so I am able to get more detail in my images during a single night of photography. All in all, I am extremely happy with this telescope and expect to get many years of great images with it.

Outstanding

Christian Ralph on Sep 10,2023

The scope is outstanding. Build quality is what you would expect from Svbony. Surprisingly light for the size. With a large front aperture, your camera setup on the back will be easy to balance. Another great product from a great company.

Very Scope for the Price !

Herbert W Hamber on Aug 04,2023

Very well made, a solid piece of equipment made with quality Ohara Japan S-FPL51 ultra low dispersion glass. I coupled it with a solid Skywatcher HEQ5 mount and a Sony IMX571 chip 26Mp cooled deep sky camera. You can see my first visual impressions on YouTube under video labelled : KLTyzWgymQ0 Stay tuned for more pictures !

Specifications

Brand	SVBONY
Model	SV550
Aperture	122mm
Focal Length	854mm
Focal Ratio	f/7
ED Glass	FPL51
Telescope Type	Refractor
Resolution	1.15 arc seconds
Coatings	Fully Multi-coated
Tube Material	Aluminum
Focuser	2.5" rack-and-pinion, dual speed (1/10)
Tube Travel	87mm
Visual Limiting Magnitude	12.3
Lens Design	Apochromatic
Dovetail Plate Length	300mm
Highest Useful Magnification	244x
Additional Thread	M63x1 female thread for adaptions
Dew Shield Type	Retractable
Net Weight	6440g/14.18lb
Gross Weight	10000g

Features

The SV550 APO Triplet refractor with 122mm aperture and f/7 focal ratio, a great travel telescope for observation and astrophotography
2. Fully multi-coated triplet apochromatic optics using an ED center element
3. 2.5" dual-speed rack-and-pinion focuser 10:1 ratio fine focusing with M63x1 female thread for adaptions
4. Retractable lens shade/dew shield-the APO even fits into the hand luggage
5. CNC multi-function Dual hinged split tube rings with a 300mm versatile V-style dovetail, support mounting of various accessories
6. Finder shoe on the focuser is included
7. Multipurpose shock-absorbing telescope protective bagrunning AstroDMx Capture

The Real Shot Image by SV550 122mm APO

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View more new deepspace photos captured by SV550, please refer to the blog https://www.svbony.com/blog/some-new-deep-space-photos-captured-by-sv550/

The Unboxing of SV550 122mm From Our Clients

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The Bundle Set of SV550 122mm by Our Clients

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The Reviews of SV550 122mm by Christian Ralph

https://www.youtube.com/watch?v=cE6Bo7JgdYk

SVBONY SV550 APO Refractor Telescope Apochromatic Triplet 122mm F7 Telescope With Case Bag for Deep Sky Astrophotography

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