2020年11月12日 · A C8 spinal cord injury refers to damage at the nerve roots between the C7 and T1 vertebrae. While individuals with C8 spinal cord injuries generally can control movement in their arms, they may experience weakness and loss of sensation in …

2022年10月12日 · The optimum back focal distance of a non-reduced C8 is 133 mm, or about 5 1/4" from the back of the baffle nut (the SCT threads where the visual back screws on) to the sensor plane. While it is true that a non-reduced standard SCT has no single back focus, that does not mean that it doesn't have an optimal one, or that if you are far enough ...

2024年4月28日 · For the C5, C6, and C8, Celestron gives the "Back focus distance from primary mirror baffle tube lock ring (in) as 5" or 127mm. If you use the prism1.25" diagonal this will get you close to the optical path length, which is shorter than the measured length (the speed of light is lower in glass than in air).

The C8 spinal nerve exits the spinal cord in between the C7 and T1 vertebrae through a small bony opening called the intervertebral foramen. This nerve has a sensory root and a motor root. The C8 dermatome is an area of skin that receives sensation through the C8 nerve.

2022年4月4日 · Starting from the telescope's reducer / corrector: Connect a Gind or EYSDON 2-in. SCT Female-to-M48 Male adapter to the telescope's reducer / corrector. This consumes 2 mm of back focus. Connect a ZWO M48 sensor tilt adapter to the SCT to M48 adapter. The tilt adapter comes with the ZWO OAG-L. This consumes 5 mm of back focus.

2025年3月24日 · I’ve been using the C8 with Celestron .63 reducer, 533, and EAF with 105mm backspace. My C8 (I assume they are all about the same) has ~ 44 complete rotations on the focus from end to end. The ZWO EAF has 5760 steps per …

In this episode, of Back-Focus 101 I demonstrate some basic and "advanced" ways to get the correct back-focus spacing using this telescope. It should be noted that when using the Celestron 0.7x...

2012年11月4日 · What are the optimum back focus distances for Celestron SCTs? Please see the EdgeHD FAQs for corresponding numbers for that optical design. By: John E. Riutta, Product Development Manager for Binoculars, Spotting Scopes, Microscopes, and Elements electronics...

2022年2月16日 · !05mm from the rear of the f6.3 Reducer to the camera sensor is the recommended starting backfocus. You should post a short-exposure jpeg of a sub so we can see if that distance is too much or too short. Without the FR, the distances that Celestron recommend in that link are probably the result of extensive tests, so very Real World.

C6, C7, and C8 Spinal Cord Injury Recovery. Spinal cord injuries to the C6, C7, and C8 levels that are treated immediately have the best chance for recovery. Patients will typically know the extent of the long-term damage within six months of the injury. Learning to deal with the limitations of the injury is a very important part of the ...