No, Your zero should be fine with the camera attached.
How are you holding the gun with the cam attached?
What gun?
*** Most likely you are holding the gun less stable because you need to move your head farther back to see the camera*** Most people I see in youtube land accomplish this by having the gun on a bipod, one hand, a knee, or other body part stabilizing the but end of the gun; and one hand to pull the trigger. Just to keep their head back enough to see the camera display...
I do every thing I can to move the scope far enough forward so I can still shoulder the gun normally and see the camera.
I use Forward Canted Scope Mounts and Extender Rails to move every thing forward.
If you check out my youtube videos you will see that all my scopes and optics are at the front of my guns... think of it like this.. You have your scope mounted, Then you generally need 1.5" to 2" of space between the eye piece of the scope and the lens of the camera to get the right eye or lens relief. Your camera is about 3" thick with the lens out, then I have my eye about 5" away from the camera screen in total thats 8 inches. For me I move the scope forward rather than my head and grip on the gun back.
See links below
The camera is always in one fixed position to the scope and displays that image to the LCD screen, This means the image you see on the camera will be parallax free, cheek weld has no effect the crosshairs through the camera, They are always in the same spot because the camera is always in the same spot.
"p.s. That makes me think. Why do they not make Scopes where you have two reticles inside, that need to be “lined up”? Wouldn’t that eliminate “cheek weld”???"
- Part of me thinks cheek weld also helps prevent the recoil of a gun from slamming the scope in to your eye.
https://www.instagram.com/p/BSEmfpLA5Lg/ https://www.youtube.com/UrbanAirgunner