Svbony Sv503 80/102ed Refractor Telescopes

SVBONY M54x0.75 0.8x focal reducer and field flattener for refractor telescopes. After the focus is reduced, the starry sky can be captured wider, the star points are finer, and the signal-to-noise ratio is better under the same exposure. With advanced refractor, it can take dazzling celestial photos without worrying about the distortion of the star points on the edge of the photo. Multi-coated optics housed in a high polish, and hard anodize finished aluminum body to help reduce weight. The front end is a M54x0.75 socket to connect to the main lens, and the back end is M48x0.75 threaded to connect to the camera bayonet (Support Full Frame Camera) The default back-intercept is 55mm.  

• Telescope
• Camera
• Filters
• Eyepieces
• Outdoors
• Microscope
• Transmission
• Action Camera
• Meeting

SVBONY SV503 70/80/102ED Refractor Telescopes W/ 0.8x Focal Reducer/ Flattener..SV503 80EDSV503 102EDThe SV503 80EDastronomical telescope can reach 1.5 angular seconds to let you see finer details either in astronomy or wildlife viewing.The SV503 102ED astronomical telescope can reach 1.17 angular seconds to let you see finer details either in astronomy or wildlife viewing.

80/102ED identical  

• Ultra-wideband Super Multi-coated

  Ultra-wideband super multi-coated is claimed as a remarkable seven-layer lens coating process that cuts the reflection ratio down to just 0.2% per lens surface. The result is a dramatic improvement in both color fidelity and brightness and the elimination of flare and ghost images.

• Dual-speed Rack and Pinion Focuser

  The gear ratio of the dual speed 2-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, one for fast focusing and the other for fine focusing.

• 90mm Back Focus

  The 90 mm back focus and 360 degree adjustable focuser are sufficient for your astrophotography needs, allowing perfect framing of your astrophotography. And the 2" RAP (rack and pinion) focuser holds more-than-5kg heavy photographic accessories safely. 

• Metal Hoop with Dovetail

  The SV503 comes standard with adjustable tube rings and dovetail which allows it to attach to most telescope mounts. In addition, there are 1/4 inch threaded holes on the dovetail plate to attach to tripods and M6 holes on top of the tube rings to attach a guide scope.

• Comes With a 2"-1.25" Adapter

  The telescope scope focuser comes with a 2 inch to 1.25 inch adapter. So that you could also use all your 1.25 inch accessories with the SV503 telescope.

• CNC Machined Technology

           Good touch feeling and durable.

    Why use Flattener?The flattener is to add a thick lens to the lens system of the eyepiece to correct the defects of curvature of field and improve image quality at the edge of the field of view. It is a set of lenses used to correct the unevenness of the telescope's field of view. The image plane of the telescope is not flat, it’s curved. The star points around the edges of the photo are radial, which is the curvature of the field. With a flattener, the image plane can be corrected to be flat.  After using SV193 focal reducer and field flattener; the starry sky can be more expansive and the star points thinner; and the signal-to-noise ratio is better under the same exposure amount.

• SVBONY M54x0.75 0.8x focal reducer and field flattener for refractor telescopes.
• After the focus is reduced, the starry sky can be captured wider, the star points are finer, and the signal-to-noise ratio is better under the same exposure.
• With advanced refractor, it can take dazzling celestial photos without worrying about the distortion of the star points on the edge of the photo.
• Multi-coated optics housed in a high polish, and hard anodize finished aluminum body to help reduce weight.
• The front end is a M54x0.75 socket to connect to the main lens, and the back end is M48x0.75 threaded to connect to the camera bayonet (Support Full Frame Camera)
• The default back-intercept is 55mm.  Using the 360° field rotator at the end of the focusing tube（sold separately ）, you can meet your composition requirements without turning the main lens, and it can also meet the use of filter wheel/OAG/astronomical camera at the same time.

          Let’s take a look at these telescope photography sharing.  SV503 80EDJames Glucksman

I had a good clear night for most of last night (albeit with the addition of a pretty full moon toward midnight) so I shot these two targets--The Tarantula Nebula (narrowband) and the Ptolemy Cluster (LRGB) from here in New Zealand on my SV503 80mm.

SV503 102EDPaul Capino

My version of the Horse Head and NGC2023 nebulae, taken from my balcony

Svbony 102ED + SV106 50mm guide scope

ASI533 + Optolong L Extreme + EQM35M Pro + 1.6hr total integration time + a fat moon

Tips with SVbony

Q: only buy the SVBONY SV503 ED telescope is enough for doing astronomy photography?

A: No, this is just a beginning.Only the Telescope Tube, you can do nothing. You need to prepare some accessories for it. Then set up all the accessories with the telescope tube, then do the observation or astrophotography.

 

Q:Only using the SV503 do Moon observation?

A:I don’t recommend you start astronomy with SV503, you can start to buy a small telescope. That is enough.e.g. sv501p telescope 。

If you really want to start doing Moon observation or solar observation (you need a solar filter) with the SVBONY sv503, then here are the accessories you need.

Diagonal

Eyepiece

Finder scope (if you want one)

Mount (support the telescope & accessories’ weight)

Like this:

Q:I want to do some photography with the SV503 ED telescope. because many astronomers own the SV503 telescope is using it do deep space photography.i want to do this too

A:Of course you can too，then you need 

Main photography camera

Photography extension tube

Dovetail for connecting finder scope (with screws)

Finder scope

Guiding camera (if want one)

 like this：

Also you could connect a Nikon or Canon camera to the telescope tube. 

Accessories needed:

Canon camera ( Of course)

Camera adapter

Photography extension tube

Like this :

Lens CoatingCoatedFeature 1Can be satisfied with more discerning observersFocuser Type of buildRAP ((rack and pinion)Objective Lens Diameter42mmSuit For 1also for ambitious beginnersMaximum Magnification10xMPNF9359ZLight gathering capacity212xAperture102 mmFeatureWith SV503 you will get the most authentic ImageSuit Forcan be for experienced observerstreatment technology of mirror tubeFine grain baking paintBrandSVBONYTube materialAluminiumMount TypeDovetailModelSV503Focuser RotatingYesFocuser Ring clampYesFeaturesDual SpeedCoatingSMCCountry/Region of ManufactureChinaFocuser Gear reduction1:10 Fine movementResolving capacity1.17"ShippingReturnPaymentGuaranteeContact usShipping

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Delivery Time

Delivery time depends on destination, logistics mode and other factors.

If the products that you purchased are available in our local warehouses, we will ship them from there and it takes about 1-6 business days for delivery as usual.
If the product you purchased is in stock at our warehouse in China, we will ship it from there. Delivery time is usually 5-9 business days.

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1. You can get a full refund when you return an undamaged product for any reason within 30 days. Just make sure all products are in original condition and provide us with relevant pictures or videos to prove it.

2. If you are not sure whether the product is in brand new condition, you can contact us first. We can help you confirm and provide a return label. 

3. We will issue a refund immediately once the product arrives at our warehouse.Processing time usually takes 2-5 business days.

 

Warranty Time

We offer a 1-year warranty.

 

 

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