Sharpstar 2" Triplet 0.95x Reducer / Coma Corrector for f/3-f/6 Newtonian Reflectors with M48 Thread
Sharpstar 2" 0.95× coma corrector can be applied to most marketable Newtonian reflective astrographs. It’s of high quality and easy to use. Sharpstar 2" 0.95× coma corrector is designed for APS-C imaging circles(28mm), suitable for Newtonian reflectors with focal ratio between f/3 and f/6, and aperture size from 150mm to 600mm. The reduction factor is 0.95×, thus it can reduce the original f/4, f/5 and f/6 respectively to f/3.8, f/4.75 and f/5.7, effectively shortening the exposure time. Besides, it can improve the star shapes. The diameter of stars in the center of the field can be limited within 10um.
Specifications
Application:150-600mm, f/3-3/6 parabolic reflectors Reduction factor:0.95× Image circle:44mm(maximum), 28mm(optimal) Lens:triplet structure Outer diameter:50.8mm(2") Back focus:56mm(starting from the field-stop-ring to the focal plane) Length:79.7mm Coating:full-surface multi-layer coatings Weight:0.22kg
GSO 57-42T adapter for Afocal Photography/Camera Projection Eyepiece FF548
GSO M57-to-T Thread Adapter. Has female M57 threads on one side to attach to GSO's 2" Camera Projection SuperView eyepieces. The other side has a standard male T/T-2 thread that can be attached to T-2 extension tubes or T-rings. Made of aluminum and anodized black.
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
ตัวแปลง SVBONY M42 to eyepiece adapter ยึดกล้องถ่ายรูปเข้ากับเลนส์ตา (ขนาด OD 50มม)
Connect your camera to the scope eyepiece for Afocal photography with this adapter
Choose from 3 available sizes, according to the eyepiece outer diameter (38mm, 45mm, 50)
Camera end of the adapter has a universal M42*0.75 thread for connecting to almost any cameras with an appropriate T-ring (sold separately), such as Canon / Nikon / Sony / Olympus / Panasonic or other CMOS / CCD cameras
This finder scope is so easy to set up and use that it relegates my Telrad finder scope into second place, what a lovely piece of kit, I'm really impressed. Thank you ThaiExcite for the excellent service. Jim Mc.