New Enlarger - Strange ring around image

Andre Noble said:

I get same ring with Omega enlarger. It is internal reflection not of consequence once one places film in the negative carrier and hence light path. Don't worry. Be happy.

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hi andre

i also get the same ring, with an omega .
i figured it had to do with the lensboard, or mount
or the negative carrier since i have a mil. contract
which has a larger condenser head so normal d3v
lensboards don't fit right ( its 6+" instead of 5" diameter for aero film )
it doesn't really do much and like you i just hum a bit of bobby mcferrin