Many a telescope owner, after gazing at the sky for a while, wants more; wants to share what she or he is seeing. There are several ways to achieve this. The most obvious is shooting through the telescope eyepiece with a small camera or cell phone.…
The Crayford telescope focuser design – developed in 1971 by John Wall and named after the Crayford Manor House astronomical society – has a number of important advantages over rack-and pinion and can be home built out of wood by almost anybody with a bit of patience and the right tools at hand. I designed this focuser specifically to carry the weight of a Nikon D7100 camera on prime focus (± 800 gr), which is considerably heavier than even the largest eyepieces. So far, it is holding up admirably.
I have been photographing all my life, and even if I did shoot and edit quite a few Hi-8 videos in the early nineties, digital video is an entirely new territory for me. Meaning: I need to get a whole bunch of questions answered, so not to turn my first DSLR video into a total bummer. I found this article on Nikon Cinema very helpful, and so might you.