Can anyone please help me to clean the "foggy" viewfinder of the Fuji GW690III?

Dan Daniel

Subscriber
Joined
Jul 4, 2009
Messages
2,883
Location
upstate New York
Format
Medium Format
And sometimes tightening a part, or going in that direction, not just the removal direction, can break loose some corrosion or such.
 

M Carter

Member
Joined
Jan 23, 2013
Messages
2,147
Location
Dallas, TX
Format
Medium Format
Looking at that part - if nothing else works, can you drill 2 holes in it to get a spanner wrench on it? Not the prettiest repair, but paint it all black when done and it shouldn't be too visible.
 

Aaron Tan

Member
Joined
Jan 14, 2022
Messages
1
Location
Singapore
Format
Medium Format
I had the same issue with you. (Although I managed to take my top plate off with a later glove wrapped around the shutter release ring and a leatherman wrench).

After cleaning inside front element of the vf I still had fog on the inside back element. If you ever manage to get your top plate off this is what you can do. Soak a q-tip in some acetone based strong nail polish remover and wipe generously several times around the ring of the back element. Wait 5-10 mins. Then take a small lens sucker (I cut one of my spare larger suction cups to fit the element exactly) and it should just spin freely and come out. Then you’ll be able to clean both that back element and the back of the prism.

I didn’t bother glueing the glass back in as it seem to sit in just fine with friction. And I figure it’ll make it easy to clean in the future.



 

eli griggs

Member
Joined
Nov 15, 2005
Messages
3,847
Location
NC
Format
Multi Format
Do not bother with store bought rubber stoppers, just buy a used thick base mouse pad and strip the fabric.

This rubbery material is made to stay put and gives a very good grip on glass, etc

If you need some 'reach', cut a small patch of the rubber to fit the freshly cut end of a hardwood dowel, using "E6000" tube glue and when 'cured' try using this to apply EVEN pressure to twist off the optic.

I suggest you buy a full set of these Swiss watchmakers oilers and try applying a tiny amount of acetone/nail polish remover to the Loctite type glued threads and allow that to break the bond.

With the tiny amount of fluid applied with the smaller metal shafted oilers, loss of paint can be minimal and once cleared with the solvent, touched up with some matt acrylic paint from Golden.

Good luck with your repair.

Eli
 

eli griggs

Member
Joined
Nov 15, 2005
Messages
3,847
Location
NC
Format
Multi Format
https://www.esslinger.com/swiss-micro-spatula-oiler-applicators-individual-oilers/

Sorry, this is the missing link.

 

Scott Micciche

Subscriber
Joined
Jan 20, 2017
Messages
312
Location
Chattanooga, Tennessee
Format
Multi Format

Not related to the foggy eyepiece issue, but the annoying "sproinnnng" spring is visible in this picture. As the shutter fires it vibrates against the chassis. I've affixed some butyl rubber in an attempt to suppress the noise and it's 50% effective.
 
Cookies are required to use this site. You must accept them to continue using the site. Learn more…