With so many types of imaging techniques, all of which have pros and cons, I have developed my own array of camera-to-telescope adapters. All these adapters are custom-machined in a shop to which I have access to.
Since each brand of a DSLR camera has a different type of lens mount (i.e., Canon lenses have different lens mounts to Nikon, and so as with Pentax, Sony, etc.), connecting it a telescope would require a special type of camera-to-telescope adapter called a T-ring and a T-adapter. A T-ring is simply a metal adapter with one end that fits nicely to your lens mount and with the other end that attaches to any T-adapter. The T-adapter is the one that attaches any T-ring to a telescope
Canon S3IS point-and-shoot camera mounted with a T-adapter for afocal astrophotography
Canon Legria FS20 video camera mounted on a special type of adapter for afocal imaging
A special type of a T-adapter called Webcam-to-telescope adapter is used for attaching web cameras directly to focusers of telescopes for prime-focus astrophotography.
Webcam imaging through eyepiece projection method
A universal camera adapter is a device that allows any point-and-shoot camera (and even SLRs) to be attached to any optical system (binoculars, telescope, microscope, etc.). Shown here is my second prototype (EtenyAdapter-2).
DIY phone camera-to-telescope adapter built from scrap wood, rubber bands, screws, and a hose clamp
Other types of adapters may also be fabricated depending on the particular need of my imaging setup.
DIY Phone Camera-to-Telescope Adapters
Universal Camera Adapter
DSLR for Astrophotography
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© Anthony Urbano (Manila, Philippines)