This is the extension bar for a ZEQ25/CEM25 mount. It also works for a iEQ30 mount. This attaches to the original bar and will create more counterbalance weight. 

Dimensions:

• Diameter: 20mm
• Net Length: 7.25 inches
• Length (including threads): 7.75 inches

Magnifier with two interchangeable lenses and LED illumination. Magnification: 3/16x

Features:

• Interchangeable lenses with different magnification
• Illumination: LED lights (2 pcs.)
• Battery-powered
• Rubberized handle

กรอบยึดกระจกหลัก GSO Primary Mirror Cell สำหรับกล้องดูดาวหน้ากล้อง 10" (มีพัดลมระบาย)

• สำหรับยึดกระจกกล้องดูดาวขนาดเส้นผ่าศูนย์กลาง 250มม (9.84")
• ยึดแน่นมั่นคง ปกป้องกระจกกล้องดูดาวได้อย่างดี
• รองรับความหนาของกระจก ระหว่าง 32mm ถึง 37mm
• รวมน๊อตสำหรับตั้งระนาบหระจก (collimation) และน๊อตยึด (locking knobs) ชุดละ 3 ชิ้น
• พร้อมพัดลมระบายอากาศ (ไม่รวมแหล่งจ่ายไฟซึ่งมีจำหน่ายแยก)
• ผลิตในไต้หวัน 

Optolong UV / IR Cut Filter - 31mm Unmounted

Optolong H-Beta Filter - 1.25"

This is the extension bar for a CEM26/HEM27/GEM28 mount. It attaches to the original bar and will create more counterbalance torque.

Dimensions:

• Diameter: 20mm
• Net Length: 120mm
• Total Length (including threads): 135mm
• Thread Size: M16-2mm

William Optics Fluorostar 132 IV, with 3.7" R&P focuser in Gold

Innovative Bahtinov Mask Cover (Patented) & Soft carry bag included!!

Simply put: a joy to use. You will be blown away by the small details you can observe through this APO 132mm; fine details of DSOs, stunning resolution both visually or during astrophotography. Until yesterday this was only a dream at this price!

Stunning Optics
• Features a top-quality triplet air-spaced objective.
• This scope is extremely sharp and has a great color correction. It is ideal for astrophotography. 
• Precision optics with STM coatings.
• Designed by a leading designer with FPL-53 glass.

New 3.7" R & P Focuser
• 360 deg. rotatable.
• Extra-heavy duty.
• Large aluminum knobs.

Ideal for Astrophotos 
• Have you always dreamed of taking those beautiful pictures of the heavens? Now is the time!! Few other refractors in this size have a DEDICATED Field Flattener. 
• Graduated scale for precise camera alignment.

Do-all Telescope 
• The 132mm objective is a great size for both wide-field and planetary observations. 
• The apochromatic performance makes it ideal for imaging. 
• This size will require a suitable mount in order to do astro imaging. Alt-Az mounts can handle this scope too if properly counter-balanced.

Simply Beautiful Finish 
• No plastic part used: CNC machined out of solid high-grade aluminum. 
• Pure William Optics quality fit and finish: powder-painted white CNC-machined aluminum tube, golden finish, retractable dewshield, anodized 360 degree rotatable focuser, engraved dewshield cap.

Attention to Details 
• Highly precise CNC machined lens cell.
• Solid CNC-machined mounting rings included in the price.
• Triple testing each lens by Zygo test to ensure the best optical quality.

Total Quality Package 

• 2" adapters included.

• All with brass anti-marring compression rings.

Sky-Watcher RA motor drive for Starquest / AZ-EQ Avant Mounts

Automatically track targets as they move across the sky. Will fit any Sky-Watcher StarQuest or Avant telescope mount.  

Antlia Tri-band RGB Ultra Filter II - 2" Mounted

The Antlia Triband RGB Ultra Filter II adds the H-Beta 486.1nm line to the Triband RGB Ultra, enhancing its ability to capture finer details of nebulae. It is designed for light pollution suppression for OSC and Mono cameras. The spectral design selected the most substantial information in the RGB bands, which makes Antlia Triband RGB Ultra Filter II possible to shoot over 90% of deep sky objects, in addition to its excellent performance on emission nebula, different from other ultra-narrowband filters, it is able to capture galaxies, reflection nebulae, and star clusters from a Bortle 8 location to Bortle 1 while presenting more balanced RGB colors in your images. Also, it has a broad bandpass designed to cope with faster optics up to the f/2 focal ratio.