• 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

This SV228 Bahtinov Mask is made of optical grade acrylic plastic, so it won't damage your telescope. The cover is designed with aluminium frame, which makes it sturdy and long-lasting. It is worth mentioning that it has a red outer cover, as the vibrant red color expresses your passion for astronomy. With thin and lightweight design, you will not upset the balance of the telescope. It is of fast focusing; get the best focus for your telescope quickly and easily.

The SV228 Bahtinov Mask 156mm is made of optical grade acrylic plastic, which is light and soft to protect your telescope. Aluminum  frame; strong and durable  for long service life. Red cover; the vibrant red can express your passion for astronomy. Thin and light design; aluminum material thickness is 2 mm; Focus quickly; Bahtinov masks make the best focus for your telescope quickly and easily.

• Portable handle; SV211 dovetail base comfortable and convenient carrying handle; after the combined installation; the large-aperture telescope can be easily carried and moved
• Easy to install; 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
• Durable and sturdy; SV211 dovetail base full CNC integrated finishing anodized aluminum; not easy to damage
• Protect the telescope; reduce collision and wear when taking the telescope somewhere
• Strong adaptability; M6 mounting screw holes; unified interface type; strong matching type

• Focal reducer and field flattener is one of the essential accessories for astrophotography; SV193 2 inch 0.8x focal reducer and field flattener for refractor telescopes
• With advanced refractor; 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 end is a standard 2-inch 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
• Accepts 2 inch filters; includes standard 2 inch filter thread to add light pollution filter you need
• The 0.8 times defocusing system shortens the exposure; it can meet the needs of astrophotographers who need sufficient exposure in a short time

This 0.8X focal reducer/field flattener is designed specifically for prime focus astrophotography with the SVBONY SV550 122mm f/7 apo refractor. The fully-multicoated reducer/flattener 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. The reducer/flattener threads into the focuser for a secure connection.  The threading is metric 63x1. Back focus is 55mm from the shoulder of the reducer to the image plane, the standard spacing for DSLR camera bodies.

The corrector is suitable for SV550 80F6. 75 filter thread for the use of 2" filters in the camera adapter. Maximum working distance from the M63x1 internal thread: 103 mm - space enough for almost all adaptations.

Notice: Since the SV550 80 APO is designed with f/6 focus ratio. When reducing the focus further, the image quality will not be guaranteed. This is why we produce 1.0x flat field instead of 0.8x. 

• Comfortable and convenient carrying handle; suitable for OTA SV503 (70 F6；80F7) SV550 (80F6); by adjusting the position of the handle; improve the safety factor of the product installation process
• Universal dovetail base; SV211 handle fits SV198 or other guide mirrors and viewfinders; provides a guide scope and finder scope mounting platform; for easy installation of accessories
• Anodized aluminum; fully CNC integrated finishing anodized aluminum; strong and durable; the handle will not be easily damaged for long service life
• Easy to carry; SV211 handle bar is easy to carry when traveling and going out; no pressure to hold; suitable for short distance carrying protect the telescope; reduce collision and wear when taking the telescope somewhere
• Easy to install; 2 M6 mounting screws; 4 M4 set screws; unified interface type; strong matching type; easy to install and remove

• Focal reducer and field flattener is one of the essential accessories for astrophotography; SV193 2 inch 0.8x focal reducer and field flattener for refractor telescopes
• With advanced refractor; 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 end is a standard 2-inch 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
• Accepts 2 inch filters; includes standard 2 inch filter thread to add light pollution filter you need
• The 0.8 times defocusing system shortens the exposure; it can meet the needs of astrophotographers who need sufficient exposure in a short time

With the locking positioning function, the camera can be positioned at any position;360 degrees rotatable.

Aluminum Bahtinov Focusing Mask perfect focusing for your CCD,DSLR or Webcam in seconds. Light weight so you wont upset the balance on your scope.

4 removable Velcro internal padded divider that can store your high-value telescope accessories.

Double padding layers internally to prevent damage to telescope equipment and eyepieces and so on. An internal padded divider makes sure these astronomical accessories are never scratching each other.

This carrying case features a removable shoulder strap and hand-carry strap, so you can easily take your telescope anywhere.

Installed with unbreakable metal D-rings that are tightly connected to the bag using double stitched straps.

PVC coated heavy duty bottom is used to protect the bag from rough surfaces