Astrophotography

T-ring with M42 thread.

T-Ring for Sony Alpha DSLR (A-Mount - Full Size DSLR). A "T-Ring" couples your SLR or DSLR camera body to a T-Adapter or other "T" threaded camera mount. 

• Equatorial wedge for Celestron NexStar 6/8SE and Evolution Alt-Az mounted computerized telescopes
• Enables long exposure astrophotography and autoguiding by tilting the telescope’s azimuth into an equatorial platform allowing it to track an arc around the polar axis.
• For beginner to intermediate planetary and deep space imagers
• Captive hardware, tool-less operation, easily adjusts under load
• All new hefty yet portable design
• Sturdy latitude adjustment screw with easy to read scale and integrated Bubble level

• The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 1100 one full F-Stop faster than f/10, reducing your exposure time by half to capture the same brightness of object
• 5-element lens design
• Maintains similar flat-field performance as native EdgeHD optical design
• Increases field of view by 43% to better capture wide field images
• Threads directly onto the 3.25" threads of the EdgeHD which reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders
• Maintains the identical back focus when used at f/10 and provides generous back focus to accommodate additional accessories and wide variety of cameras
• Allows use of existing EdgeHD T-Adapters with or without the Reducer Lens

• The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 1400 one full F-Stop faster than f/11, reducing your exposure time by half to capture the same brightness of object
• 5-element lens design
• Maintains similar flat-field performance as native EdgeHD optical design
• Increases field of view by 43% to better capture wide field images
• Threads directly onto the 3.25" threads of the EdgeHD which reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders
• Maintains the identical back focus when used at f/11 and provides generous back focus to accommodate additional accessories and wide variety of cameras
• Allows use of existing EdgeHD T-Adapters with or without the Reducer Lens

• Attaches directly to the rear cell of the larger Edge optical tubes
• Produces better illumination for today's larger full-frame imaging sensors, all the way to the corners
• Reduces vignetting–darkening around the edges of the image sensor–by providing unobstructed light to the camera

2" with M48 thread extension/spacer ring male and female threads on each side with 20mm spacing/extension.