Fix geometry and convergence about blast

[nonosto]

Dear I would like buy one blast. I maybe take this. Also I would like know if iy's possible to fix convergence and geomtry and how much?
THX

 

[PascalP]

Maybe it is your pictures or phone camera, but the screen looks to be very dull/dimmed as well?
Also has a red/purplish tint

 

[nem]

Pictures are shot with a flash. The screen will look dim. The first pic looks fine.

You should be able to get the geometry to "good enough" with just the controls on the chassis. Convergence is another kettle of fish.