Lubricating the lens hood bayonet

I've noticed recently on my 6 month old 100-400, that when fixing the lens hood to the lens, the bayonet is a little chalky and on rotation there is often a judder and/or a squeak, I guess from wear.

Is there a reccomended lubricant or cleaning agent that won't do any damage ?

Lawrence

It's pretty hard to damage the hood.
Personally, I wouldn't worry about it - all my hoods do the exact same thing, but if it bothers you that much, candle wax will do the trick.
Just run any old candle around the bayonet of the hood a couple of times and you'll be good to go

Excellent - I'll go rummage through the kitchen drawer.

Lawrence

All done and much, much better.

Thank you, great tip.

Lawrence

Silicon spray, just a little onto a cloth/tissue then wipe into the grooves

I've had the a similiar anomaly with my lens hood but just lived with it. I do favor the two preceeding solutions. Thanks.

A drop of dish soap on your finger and run it around the lens hood works too.

Some WD40 should do the trick. Won't squeak but not sure it will stay fixed the whole time

WD40 is the last thing I'd reach for. Salt water sailors hate the stuff.

My choices...silicon spray applied with a cloth, (I wouldn't think of parrafin, but a fine idea!), a spray lubricant called McLube Sailkote applied with a cloth

LeeRatters wrote in post #14935386
Silicon spray, just a little onto a cloth/tissue then wipe into the grooves

+1

Wilt wrote in post #14936199
WD40 is the last thing I'd reach for. Salt water sailors hate the stuff.

My choices...silicon spray applied with a cloth, (I wouldn't think of parrafin, but a fine idea!), a spray lubricant called McLube Sailkote applied with a cloth

McLube all the way!!! Great stuff and is a dry lubricant. Does not attract or hold dirt or dust. I use nothing else on my sailboat for those reasons.

All the rest mentioned can attract and hold dust over time.

A silicone spray would be ideal, I would think wd -40 would dry the plastic out and cause it to crack if you used it repeatedly.

I've been doing this for years with bayonet lens hoods. Before mounting I wet my index finger and run a little spittle around the lens hood bayonet.

Works a treat.

Tony_Stark wrote in post #14936136
Some WD40 should do the trick. Won't squeak but not sure it will stay fixed the whole time

You don't want WD40 near any plastic/rubber, it'll destroy it sooner or later.

Run a soft pencil around the contact points.