Optolong Clear Focusing Imaging Filter - 2"

OAG-L has a large prism size of 12*12mm, far bigger than M68 OAG. The bigger clear aperture brings wider field of view in guiding. It is easy to use, and suitable for users who are interested in long focal length photography.

To take the most advantage of it, we recommend you to match it with large format guiding cameras.

SVBONY Universal Dovetail Mounting Plate สีแดง, 210mm 

• Can be use to mount telescopes or spotting scopes to tripod head
• Made of extruded, anodized aluminum. After anodizing treatment, an electrically insulating coating is formed on the surface to maintain the smoothness of the metal for a comfortable feel
• 1/4-inch standard screw thread fits almost all telescopes
• Length of dovetail mounting plate is 210mm
• Compatible with F9144C dovetail clamp, sold separately
• Two color options: red and silver

SVBONY Dovetail Clamp with 1 large bolt screw สีแดง

• Medium dovetail clamp with a brass screw for telescopes and cameras
• Brass locking screws protect your accessories and provide a very stable connection
• 8 holes available, five for M6 and one for 1/4 inch screws, two for M8 screws. Center distance of two holes for M8 screws is 35mm
• Allow connection to almost all kinds of accessories
• Compatible with SVBONY F9143 dovetail plate, sold separately
• Two color options: red and silver

Optolong L-Ultimate 3nm Dual-Band Filter - 2" 

The L-Ultimate is a 3nm dual band filter designed to drastically reduce the effect of light pollution. The 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue). It blocks light pollution, maximizes the signal from nebulae, and darkens the sky background. It also blocks artificial light from mercury vapor lamps, high and low pressure sodium vapor lights, and unwanted natural light caused by the emission of neutral oxygen in our atmosphere, maximizing the transmission of the main emission lines of the nebula in OIII (496nm and 500nm) and H-alpha (656nm). Used with DSLR, color/MONO CMOS and CCD, this filter is suitable for telescopes with an f-ratio of f/4 or higher (slower).

ฟิลเตอร์ SVBONY Dark Filterสำหรับถ่าย Dark Frames บนกล้อง CCD, 2"

• Quickly capture dark frames to optimize photo quality
• Opaque - blocks all light from the imaging camera sensor. Help remove dark currents - essential for astrophotography
• Easily eliminate camera noise and hot pixels
• Dark frame acquisition helps remedy such noise and "hot pixels" by canceling out these disruptive effects during image processing
• Threaded and can be directly connected to your filter wheelfor fast conversion between different filters;
• Made of metal for durability. High quality packing box includes foam-lined plastic case

เลนส์ถ่ายดาว Askar ACL200  200mm f/4 Full Frame Astrophotography Camera Lens #ACL200  (latest version)

• Askar 200mm f/4 manual focus lens especially designed for astronomical imaging
• Incorporates six elements in three groups including two ED elements to minimize chromatic aberration
• Easy to use, just like a manual-focus camera lens, with coarse and fine manual focus rings (requires 48mm T-ring adapter, sold separately)
• Includes rotable collar for framing images and a filter adapter for standard 2" astronomy filters
• Compact and lightweight form factor

ZWO Spare Filter Holder (2nd Gen) for FD-Nikon / FD-EOS / FD-M54-II / FD-M42-II

New 2″ filter drawer featuring the anti-light-leaking design that can effectively solve the light leaking issue under long exposure.

William Optics Pier Mount 90

• Adapter: 3/8" Thread ( for ZWO AM3/AM5 )
  More EQ Mount types are optional
• Weight: approx. 7 kg
• Loading Capacity: 90 kg / 198 lbs
• Height: 
  Stance: 89.3 cm
  Closed: 79.3 cm
• Foot Adjustable Height Range: 15 mm
• Material : Aluminum Alloy
• Pillar Diameter: 100 mm / 4"