Hi there
I have 3 very old shutters to service. They are front mount leaf shutters with 3 "speed" : B,T and Instant.
First is a "RAAGO" (unknown brand to me) for 60mm front lens diameter, second is a GITZO for 85mm and the last is an enormous SILENS for 120mm diameter.
They are in good shape and working but very dirty and they even smell WD40 !!!
The blades have some rust spots, specially the GITZO wich is very rusty, and it affect the speed.
What is the best way to remove rust without damaging the blades ?
Fiberglass brush ? Acidic/basic cleaner like white vinegar ? Ultrasonic cleaner ?
And what about the bluing ? Do I need to redo it after derusting ?
Thank you for your advices
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