Svbony SV112 Variable Eyepiece Projection Kit for Telescopes 1.25" Fully Metal Deluxe w/ Canon/Nikon T-Ring Adapter

Features: 
1.The "Variable" feature lets you adjust the adapter length to vary the magnification (thus image size) for perfect framing of your shots. Fits telescopes with a standard 1.25" eyepiece port.The 1.25" barrel is threaded to accept standard 1.25" Eyepiece Filters.
2.Compatible maximum eyepiece diameter is 42 mm.It can handle larger eyepieces (to 42mm Max Dia), has a handy laser engraved Extension Scale and a machined Grip Ring
3.Laser Sculpture Recordability and Repeatability Extended Scale.
4.Built-in protective pressure ring to prevent the appearance of eyepiece barrel from being scratched

The kit is suitable for:
1.Prime Focus – In this imaging method the camera is connected directly to the telescope and placed at the "prime" focus of the telescope. The telescope becomes the camera lens. No eyepiece is used in this method. This method provides the widest possible field of view, the shortest possible exposure time and moderate magnification. Typically used for imaging nebulae, galaxies and other large (but dim) deep sky objects.
2.Eyepiece Projection & Variable Eyepiece Projection – In this imaging method an eyepiece is used to increase magnification. The eyepiece is placed between the camera and the telescope. The eyepiece “projects” the image onto the camera sensor. The projected image size increases with distance, similar to a flashlights beam. A "Variable" Projection adapter allows you to change the projection distance. This varies the magnification of the system, allowing you more flexibility when framing your shots. Think of it as a "Fine" magnification control. Whereas "Coarse" changes in magnification are made by changing eyepieces. Eyepiece Projection is typically used for Terrestrial, Lunar & Planetary imaging and any time higher magnification is needed to bring out detail.

Important Note:
1.Additional parts may be required to reach photographic focus with certain telescope types: SCTs and Maks generally have enough focus range without any additional optical or physical extensions.
2.Reflector type telescopes will typically require the use of a Barlow Lens
3.Refractor type telescopes will typically require the use of an Extension Tube
4.The Eyepiece upper barrel can be no larger than 42mm in diameter.
5.The Nikon Adapter designed for Nikon SLR / DSLR Models. including for: D1, D2, D3, D3S, D3X, D35, D4, D40, D40X, D50, D60, D70, D80, D90, D100,D200, D300, D300S, D600, D700, D750, D800, D800E, D810, D3000, D3100, D3200, D5000, D5100, D5200,D7000, D7100, etc. Note: it doesn't fit mirrorless cameras

Package Includes:
1× SV112 Variable Eyepiece Projection Adapter
1× 1.25" Prime Focus adapter
1× 1.25" Parfocalizing Ring
1× Canon/NikonT-Ring Adapter or None
1× Allen Key Tool
1× Plastic spira