• CNC hollow structure; SV225 altazimuth mount adopts hollow structure; reduce the weight(2.34Kg); convenient for you to carry out; light weight
• Fine adjustment shift; SV225 alt-az mount can fine-tune the telescope to meet your adjustment efficiency in different scenarios
• Variable speed gear; SV225 alt-azimuth mount is variable speed gear slow motion controls on both axes to let you smoothly follow the motion of the moon and planets
• Load capacity; with a payload capacity of 10kg; even light weight; the SV225 alt azimuth mounts will match well with the telescope; camera and so on
• Applicable scenes; SV225 alt-az mount is suitable for many senorios; like astronomical visual observation and surface observation

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• SV193 0.8x focal reducer can take dazzling celestial photos without worrying about the distortion of the star points on the edge of the photo;
• The front is a standard 2-inch socket for connecting the main lens. The rear is a M48x0.75 thread for connecting the camera mount. Supports full-frame cameras
• The SV193 can be connected to a standard 2" filter thread to add the light pollution filter you need；
• The 0.8X defocus system shortens the exposure time. It can meet the needs of astronomical photographers who need sufficient exposure in a short time.

SV193 Connect with 1.25inch SV705C Camera

• SV209 0.8X focal reducer/field flattener is designed specifically for prime focus astrophotography with the SVBONY SV550 122mm f/7 apo refractor;
• It can correct the defect of field curvature of the user's shooting target; improve the imaging quality and shooting efficiency of the edge of the field of view;
• It converts the 854mm focal length f/7 refractor into a 683.2mm f/5.6 system for faster and wider field astronomical and terrestrial photography;
• In addition to reducing the focal length of the telescope and thereby increasing the photographic speed, the flattens the normal field curvature inherent in refractors. This provides images that are sharply focused out to the corners of DSLR and CCD imaging chips;
• SV209 0.8x reducer has a metric 63x1 thread; the telescope reducer flattener screws into the focuser to ensure a secure connection.

• SV211 dovetail base comfortable and convenient carrying handle. After the combined installation, the large-aperture telescope can be easily carried and moved;
• SV211 finder scope mount bracket the length is 203mm, with 2 M6 mounting screws, 4 M4 set screws, and 1 M5 wrench, which can be easily installed and removed;
• SV211 dovetail base full CNC integrated finishing anodized aluminum, not easy to damage;
• It can reduce collision and wear when taking the telescope somewhere.

• The main function of ADC is to reduce the color change caused by atmospheric dispersion and improve the imaging effect of planets, especially low-altitude planets;
• A pair of prism lenses adopts double-sided coating process to reduce light loss; coating adopts anti-reflective broad-band; applicable range from 300nm to 700nm;
• Camera and eyepiece side 1.25 inches barrel with T2 male thread; adaption is simple through T2 thread and 1.25 inches barrel on camera side and 1.25 inches barrel on telescope side;
• Through the use of 2 quality minimum 1λ BK7 prisms, it corrects the false colour introduced by the earth´s atmosphere, double wedge prism with 4.5 degree declination adjustment range;
• The ADC corrects the dispersion effects of earth´s atmosphere; you will get sharper images of planets and moon; when used for planetary imaging; it changes the clarity of the image dramatically; particularly in the luminance channel when LRGB imaging;
• Ring scale for adjusting dispersion correction; less fringing; clearer planet photos and more details; the eyepiece or camera installation interface adopts coaxial locking interface ensures sufficient coaxiality;
• FMC prism lens; prism lenses employ a double-sided coating process to reduce light loss make sure the light transmission of the ADC is high.

• USB interface; plug into a USB power adapter; a portable charger; the USB cable makes lens warmer ideal for indoor and outdoor use;
• Temperature range; working temperature adjustment range from 25 degrees to 70 degrees to suit different weather environments;
• Fastener design; with handy fasteners; it can wrap around your lens or scope with security and is easy to adjust;
• 430mm effective heater length; liminate dew; fog; and condensation with our specially crafted lens warmer during cold weather photography;
• Designed with PWM Function, which can provide more accurate, energy-saving, efficient heating control, thus enhancing the performance and reliability of telescope equipments.

Note: This dew heater is suitable for SV503 70ED, SV48P, MK105, SV503 80ED, SV503 102 ED, SV550 80 APO

The SVBONY Helical Focuser allows for precise focusing of eyepieces or cameras. It is ideal in connection with a guide scope and a guide-camera. such as SV165 series mini guide scope. The focuser features a female T2-thread on the telescope side, while allowing the attachments of 1.25" equipment on the eyepiece / camera side. In addition, there is a male T2 thread on the camera side. During focusing, the attached accessories keep their orientation and don't rotate. The exact focus position can be fixed with a clamp screw.

• 210mm dovetail plate and adapter(clamp) set easily to do balance work;
• Dovetail clamp: two M8, five M6, and one 1/4'' hole;
• Dovetail plate: standard 1/4'' hole, The space at both ends can be passed by M6 screws to connect your telescope.

Note: These screws aren't included

• Camera angle adjuster; The CAA image field angle adjuster can easily adjust the shooting angle without rotating the main mirror, saving customers the tedious installation and disassembly process;
• CAA 360-degree rotator; Improve the stability and portability of the shooting process, it is mainly used for astrophotography scenes;
• Camera angle adjuster for SV550 refracting APO telescope, also compatible with astronomical telescope lens barrel with M63x1 threaded astronomical focusing mounts;
• locking screw M4; With locking and positioning function, the camera can be positioned at any position;
• CAA with field flattener can correct the defects of the field curvature of the shooting target, and improve the imaging quality and shooting efficiency at the edge of the field of view;

• 0.5x focal reducer cuts the telescopes focal length in 0.5 times of original's to get a wider field of view;
• Fully anti-reflection coatings on all air-glass surfaces for increased contrast;
• The focal reducer is great for visual use for a bigger FOV and is indispensable when CCD imaging;
• Fully metal structure design;both the ends of the interface part is 28.5x0.6 thread;
• Directly connect the interface to the eyepiece;there is a very good performance in both visual and photography.

1.25'' red laser collimator with 2'' adapter.Designed for accurate collimation of Newtorian and SCT reflector telescopes. SV121 Red Laser Collimator adopts retaining only one optimal gear position brightness, reducing cumbersome manual adjustment; Moreover, the spot shape is a dot not a grainy elliptical point.

• SV197 cheshire collimating eyepiece fits for Newtonian and SCT reflector telescopes; also useful for aligning refractor optics very accurately;
• The SV197 cheshire collimating eyepiece for accurate alignment of any Newtonian reflector telescope mirrors; ideal for ensuring the optical alignment;
• Peephole in top; The SV197 cheshire collimating eyepiece can directly see the result of the calibration;
• Precision machined from aluminium with fine crosshairs and a clear bright mirror with sighting hole;
• Easy alignment; no batteries needed; for secondary mirror collimation; can be used only during the day;

• SVBONY user adjustable laser collimator;allows anyone easily collimate 1.25'' and 2'' reflector telescopes;come with removable 2" adapter;built with metal material;make alignment no longer boring and time consuming
• Easy to use;accurate collimation in a few minutes provide a more clearer image;no longer have to go back forth;just watch the collimator from the mirror end of the scope and adjust the screws
• 7 brightness levels red laser beam;adjustable brightness;suit for different light conditions;amazing alignment in dark and day;so can get the better views possible from your reflector telescope
• Solid metal body;for a long term use;CR2032 battery included and comes with a full set of instructions with a step by step procedure on how to properly align a relfecting telescope
• Triple cemented of Lens;Improve the stability of red dot;Red laser with 7 brightness levels;Quick alignment;much faster than a manual collimator ; It's a great Halloween birthday christmas gift

• Universal lens warmer. Lens Warmer prevents telescope camera lens from fogging dew by warming up the lens on a camera or telescope. It also warming up water bottle and use as a knee strap;
• USB port design, 1.8m usb cable length. You can connect it your power bank or any other power source with a USB port. 1.9A to 2.0A input current, 5V input voltage;
• Temperature regulator adjustable. Strong medium weak heating modes that you can adjust the temperature according to your requirements;
• Design for telescope. 50mm bandwidth does not affect the focusing and no dark angle of the field of view, fit lens outer diameter below 127mm;
• Heating fast and evenly. Built in aluminum make heating evenly. Alloy fiber heating wire provides super fast. Three layer insulation material to reduce heat dissipation.

• Compliable with finder scope;reflex sight bracket on telescopes;great for adding a second or third aiming device to your telescope;
• dovetail base fit for most bracket designs from Celestron;Orion;Sky-watcher;Vixen etc; compliable with finder scope;laser Pointer bracket on telescopes;
• SVBONY fully metal dovetail bracket base and dovetail mounting plate for finderscope. It can fit and protect the tube very well;
• All metal finderscope bracket base for your optical finderscope that comes with the standard quick release dovetail board
• It is cambered on the bottom of base;so it can fit and protect the tube very well;

Suitable for SV48 and SV48P, not applicable for SV503 series telescope.

• For adding a second or third aiming device to your telescope, optimal optical telescope finder scope accessories with enhance performance under the stars;
• Finder scope dovetail slots ideal for custom installation of any finder scope; 
• Dovetail base work with finder scope or reflex sight bracket, include two large thumb screw locks. So you can securely attach an aiming device to any telescope;
• Durable metal design, made of high-strength aluminum, using anodized aluminum process, ultra-lightweight and ultra-thin body.

Connect the slot with SV198 guide scope 

The SV219 black dovetail mounting plate for different sizes of telescopes. We provide you with three specifications of different lengths to choose from according to your telescope size.

• 3-Axis adjustment; the SV214 Pro 3-axis universal smartphone adapter features 3-direction precise adjustment; up and down; left and right; forward and backward; to center your phone camera with eyepieces with accuracy;
• Aluminum alloy material; the telescope phone adapter for robust and durable, doesn't bend, tilt or warp, holds your cellphone tight;
• EVA pads; the eyepiece clip and mobile phone clip have pritective pads; it prevents damage to the phone and eyepiece;
• High precision fine-tuning to razor-sharp alignment with the lens; the SV214 pro digiscoping adapter for telescope is designed for high precision adjustment; easy-to-reach XYZ fine-tuning knobs realize stable and accurate adjustment;
• Universal; the SV214 pro phone adapter compatible with almost any brand/model of iPhone/Android smartphone (width 55-105mm).

• Designed specifically for astronomical telescopes; protect optical equipment such as telescopes from fogging or freezing;
• Compatibility enhancement; Compatible with astronomical primary mirrors of OD below 152mm or camera lenses;
• 3-speed regulator with medium weak heating mode; You can adjust the temperature according to different usage requirements;
• 5.5X2.1 female interface design; easy connected to various 12V power inputs;
• Good heat preservation effect; imitating OK cloth; SBR and Black-T three-layer heat preservation material; reducing heat dissipation; and no wrinkles on the inner surface after bending.