Great question—HyperStar setups can definitely be a bit tricky at first
When using a HyperStar, the camera adapter length isn’t arbitrary—it’s determined by the required back focus. Each camera has a different sensor position, so you’ll need to match the total spacing to the back focus specified by the HyperStar manufacturer.
In simple terms: Required back focus – camera sensor distance = adapter length you need
Make sure to also account for any filters or additional accessories, since their thickness will affect the total spacing.
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