i just took receipt of my new 5x7 sinar norma last night. there is a felt material in the dados of all the metal grooves (where lens boards/bellows/etc. connect). the felt is very old and disintegrating.
my questions:
A)was this from the factory or put there by old owner and
B)is the felt redundant? as sinar uses metal channels for light traps (i thought).
C)would you replace it?
thank you
steve barry
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