| Click on the picture for details |  |  |  |  |  |  |  |  |
| Model | SV223 | SV223 | SV222 | SV222 | SV221 | SV221 | SV188/P | SV188/P |
| SKU | W9180A | W9180B | W9179A | W9179B | W9178A | W9178B | F9171A | F9171B |
| Deflection Angle | 90° | 90° | 45° | 90° | 90° | 45° | 90° | 90° |
| Diameter | 1.25inch | 2inch | 1.25inch | 1.25inch | 1.25inch | 1.25inch | 1.25inch | 1.25inch |
| Type | Mirror | Mirror | Prism | Prism | Mirror | Prism | Mirror | Mirror |
| left and right imaging | reverse | reverse | forward | forward | reverse | forward | reverse | reverse |
| Up and down imaging | forward | forward | forward | forward | forward | forward | forward | forward |
| Equivalent optical path (mm) | 85.5 | 109.1/118.6 | 93 | 65.6 | 73 | 86 | 78.5 | 78.5 |
| Effective aperture | 25mm | 43mm | 16mm | 19mm | 29.5mm | 19mm | ||
| Advantage | Coaxial locking, high-reflective dielectric coating, high surface accuracy | Coaxial locking, high reflective dielectric coating, high surface accuracy, dozens of layers of coating, high surface accuracy | Suitable for astronomical observations | Suitable for astronomical observations | Suitable for astronomical observations | Suitable for astronomical observations | Highly reflective dielectric coating |
- SV188P features sophisticated, Multi-layered dielectric coatings that provide an astounding 99% reflectivity for maximum view brightness and sharpness.
- Dielectric mirror coatings are more durable and more reflective than enhanced aluminum coatings
- Brass lock Screw for eyepiece or adapter and brass Compression rings features more precision and prevent barrels or the surface of eyepieces from marring and scratching.
- 1.25" nosepiece barrel is threaded to accept 1.25-Inch eyepiece and filters
- Diagonal provides a comfortable 90-degree viewing orientation when observing the night sky through a refractor, Maksutov-Cassegrain (Mak-Cass) or Schmidt-Cassegrain telescope
- Machined and anodized aluminum housing features machine-threaded baffles for optimized contrast
- with a MAK scope you have much more back focus than a regular refractor scope and with a SCT & MAK it has lots of back focus.
- 2" 90 Degree Dielectric Mirror Diagonal
- 2” to 1.25" Adapter
- 2" Dust Cover
- 1.25 Dust Cover
- M4x8 Screws
- M4x12 Screws
Order Processing
Almost all of the standard orders are shipped within 1-2 business days, excluding weekends and holidays. The special orders for some customized products will take a little longer time, the specific time can be confirmed with our sales expert.
As soon as your order is ready, we’ll update the tracking number and inform you of the information. If the item you ordered is temporarily out of stock, our customer service team will reach out to you. You can choose to wait until the item is back in stock or cancel your order.
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.
Thank you for choosing SVBONY! We have established a strict system to ensure product quality in a responsible manner. These products are safe and reliable, and you can buy them with confidence. Should you have any issues, feel free to contact us. Our professional customer support team will patiently help you resolve the problems. We sincerely apologize in advance for any trouble and inconvenience that caused you.
Return & Refund
We offer a 30-day unconditional return policy.
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.
Guaranteed authentic, we are the official store of SVBONY brand, and the products sold are guaranteed to be authentic.
Guaranteed service, one-to-one exclusive customer service, answer all your questions and provide free professional technical support.
Guaranteed after-sales, all products purchased from SVBONY enjoy worry-free warranty, your product warranty period is one year.
If you have any questions or inquiries about our products or services, please feel free to contact us.
