Amscope Trinocular Simul-focal question

[don]

Hi,

I just purchased one of these and all seems well...except if I look down the camera tube I can see an obstruction.  Fortunately obstruction is not showing up in camera images.  Though I'm really surprised it does not.  I know a few folks here have the same hear and I would really appreciate someone checking theirs out and letting me know if its normal.

Thanks,
Don

[don]

I spoke with amscope tech support.  They looked down the tube on one of theirs and said they saw something blocking light circle in lower left corner as well.  So looks like all is well.