• Reduce Light Pollution: It can greatly reduce the interference from natural light sources such as moonlight or artificial light pollution such as street lighting;
• Improving Contrast: The filter enhances contrast during visual observation of gaseous and planetary nebulae, even under light-polluted skies. By improving contrast, it makes the nebula stand out more clearly against the sky background, but does not increase the nebula's brightness;
• Strong Applicability: The filter applicable to SVBONY's electronic cameras and astronomical cameras;
• Scope of Application: Useful for imaging emission nebulae, planetary nebulae and supernova remnants.

Note: This filter set is not suitable for telescopes with a focal ratio below f/4

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• This dual narrow band telescope filter properly designed for astrophotography both in light polluted environment;
• Take color images without needing to combine images with multiple filters. Useful for imaging emission nebulae, planetary nebulae and supernova remnants;
• Designed to sharply cut off the inference of artificial light from sodium vapor or mercury vapor street lights and other unwanted disturbance like sky glow.

• WIFI connection; connect your smartphone for remote control; suitable for bird watching photography and target training; allow you to see the surface of the target in real time on your phone; greatly improve efficiency and comfort;
• CS-C interface; the front end of the camera is CS-mount; equipped with a CS-C adapter ring; which can be used with C-mount lenses or CS-mount lenses for shooting; time-lapse shooting is possible in schedule shooting mode;
• 32G TF card memory; equipped with 32G large-capacity TF card; it does not occupy the storage space of the mobile phone; you can download and share photos in real time;
• The camera is supported by WIFI Mode and UVC Mode. When using uvc mode, you need to use the built-in data cable, connecting the Type-C port to the device, and the USB port to the PC; Open the UVC mode software on the PC (Amcap software can be used), select UVC CAMERA, and enter the image interface.

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• HD Glasses; Equipped with ED Glass to eliminate chromatic aberration and deliver images of outstanding resolution and contrast;
• Lightweight and Compact; SV410 ED spotting scope weighs only 550g; easily to be hold in the palm and put in belt pack or shoulder bag; ideal for bird watching and observation enthusiasts;
• High quality optical design; FMC coating improves color saturation of the image; 10Elements/7Groups lens structure maximum light transmission for bright crisp field of view 2m Close Focus Distance brings detail of this micro world that you would not see normally; 18mm eye relief with twist-up eyecup design is suitable for people wearing glasses or not;
• Waterproof storage bag; soft bag adopts high quality waterproof material to provide effective protection; you can use the spotting scope on tripod with soft bag on;
• 9-27x magnification range spotting scope can easily lock your target and zoom in for more details; 56mm objective lens can pull in more light for bright image.

• Svbony SV205 with SONY IMX415 CMOS sensor and USB3.0 Type-B port. It complies with the standard UVC protocol and no need to install SVBONY driver. It is the plug and play device, suitable for beginner users for astronomy photography;
• The image sensor uses dark light compensation technology to greatly improve the camera's image clarity in low light conditions;
• In MJPG video format;you can record video quickly and the frame rate up to 30FPS at 2K resolution 1920x1080; You can also choose YUV uncompressed video format;
• The camera allows you to capture a real-time video and transport to your laptop or PC;machined aluminum 1.25" adapter barrel for direct threaded connection to almost any telescope.

Blog: How to connect the phone with SV205 Camera

• FMC coating; The fully multi-coated objective lens ensures high transmittance for a brighter and clearer aperture, and providing clear, detailed and high contrast images;
• Wide angle; 26°wide angle binoculars gather more light than our eyes, so it works better in observing the moon, constellations, Milky Way etc;
• The long depth of field design; it almost seems as if you are standing on a very high mountain in absolute darkness; from the recent focus distance to infinity; no need to twist the eyepiece frame to focus and operation portable;
• With a magnification of 2.1 times, you can observe not just the main stars in a constellation, but many you have probably never even seen before;
• Finely crafted; fine workmanship; exquisite appearance; easy to carry; the objective lens has a standard 2-inch filter thread; which works better with a light-astronomical astronomical filter.

Perfect for Stellar Wonders!

• Flat field eyepiece; offer corrected field curvature; you will observe an image not just in the centre but right out to the outer edge;
• Clear image; fully multi-coated and blackened lens edges to reduce reflections; 8 lens 5 groups give you an image of high colour purity and excellent contrast;
• Comfortable; 65° wide field of view keeps stars planets and lunar details in focus across the field of view; 20mm eye-relief is ideal for long intensive observing sessions;
• Eyecup; folded-up eyecup fit for glasses wearers or not; removing eyecup has a m42x0.75 thread for astrophotography;
• 18mm eyepiece; medium power eyepiece for a bright, low power view of the moon and most all deep-sky objects.

• 70 Degree Eyepiece in Red Color, Great for Viewing the Night Sky;
• Super-wide 70-Degree apparent field of view;
• Twist-Up eyecups, and barrels threaded for use with 1.25" eyepiece filters.