I think you're right!
PRejto said: [A lot of clamping mechanisms can introduce some tilt for sure.]
Yep - I think you're right... clamping is probably the primary offender.
I had a critical look and to laser test I have to consider the camera rotating bracket tightener, the visual back the screws into that has a 3 knob clamp for the 2" adapter at the back, then there is the 2" to 1.25" adapter with a single tightening knob.
Adjusting any of these knobs affects the laser point, especially the 3 knob clamp.
I will concentrate more on camera tilt rather that collimation to see if that is the culprit.
Thanks for the insight.
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