2. How do you check the back focus? Are our JVC camcorders different than the Sony EX3? How? What are the key differences between adjusting the back focus?
Back focus allows the image to stay in focus for all focal lengths. Calculating the distance between the lens group and the sensor plane. Because an image can go easily out of focus, precise adjustments are vital. The process of getting precise back focus requires the camera operator to zoom into the star multiple times to adjust the focus. Once all of the adjustments are finished, the back focus locking screw must be fastened. The JVC, in comparison to the Sony EX3, has the capabilities to adjust the back focus.
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