Not WD-40, it will eventually gum up. Shutters can often be cleaned
by squirting some naphtha AKA Ronsonol lighter fluid into them. I have
also had some luck with an electronic contact cleaner called Deoxit D-5.
Its best to open the shutter to make sure you get the solvent in the
right place.
I suspect you Copal will wind up at Grimes after a while.
On 3/17/2016 6:20 PM, Richard Lahrson wrote:
Hi!
Before sending off my Commercial-Congo 210mm/4.5 in Copal #3
shutter to Grimes, Inc., I had the thought: they are going to fix it,
why not shoot some WD-40 in it? It will probably cost north of $200 anyway.
I'm a wise fool! It worked. The slow speeds are now working and
the 2 bills are still in my pocket.
To the wise: don't try this!
I think all the chatter on the frig lite helped! Thanks everyone!
Best. Rich
