Fixing a Fuzzy Viewfinder on a Panasonic LX100

As I posted the other day, I've got a new camera to use while cycling, a Panasonic LX100. I used it on yesterday's 140km mountain ride, but couldn't use the viewfinder because the viewfinder focus (the diopter control) stopped working, and the view via the viewfinder was completely fuzzy (including the information displays that should be sharp and clear even if the image through the lens is not yet focused).

A search on the web quickly showed that this was a common problem sometimes fixed by fiddling with the diopter dial, but usually resulting in a return or a replacement of the product.

Not wanting the hassle of a return, I looked into fixing it myself, and was able to do so easily.

The bottom side of the viewfinder housing has a single small screw, which I removed:


Nikon D4 + Venus 60mm Super Macro f/2.8 — 1/500 sec, f/2.8, ISO 560 — map & image datanearby photos
LX100 From Below
with the small housing screw removed

Removing the screw allows the cowling to be removed, leaving some of the innards exposed...


Nikon D4 + Venus 60mm Super Macro f/2.8 — 1/500 sec, f/2.8, ISO 450 — map & image datanearby photos
With Viewfinder Cowling Removed

Nikon D4 + Venus 60mm Super Macro f/2.8 — 1/250 sec, f/2.8, ISO 6400 — map & image datanearby photos
Close Up
of the diopter-adjustment wheel
along with its inside related something-or-other

The little bit of plastic highlighted in the photo above seemed to be close to the wheel, though I couldn't really see what it was for or even if it moved, but I gently poked at it with the screwdriver. (In retrospect, I should have used a toothpick.)

That gentle poking in its general area, along with more movement of the wheel, seems to have done the trick... I could now focus the viewfinder so that I could see the display sharply.

I don't know exactly what I did or why whatever it is worked, but it was easy enough, so I thought I'd mention it in case anyone else has the same problem.


All 2 comments so far, oldest first...

I couldn’t really find the bit of plastic, but taking the cowl off makes it much easier to move the diopter wheel rapidly up and down a few times – which fixed it. Brilliant
From London UK

— comment by Brian Collins on July 1st, 2015 at 5:14pm JST (1 year, 11 months ago) comment permalink

Hi jeffrey, good day. i got an LX100 online 2 weeks ago, and when it arrived i noticed that the EVF would’nt be in sharp focus. i thought it was only because i wear glasses. soon, i checked the diopter, it works, but even though the center of the EVF is in sharp focus i notice the peripheral areas of the EVF to be blurry. it only clears up if i move the position of my eye to the EVF a few times, but i never achieve 100% clarity/sharpness across the whole frame all the time

what do you suggest? i make do with it and try your method of fixing it? or just return it?

Thanks Jeffrey,

Chomin Aberasturi
Bacolod city, Philippines

I don’t know, sorry. It seems strange that only the center is in focus. —Jeffrey

— comment by Chomin Aberasturi on December 29th, 2016 at 3:36pm JST (4 months, 30 days ago) comment permalink
Leave a comment...


All comments are invisible to others until Jeffrey approves them.

Please mention what part of the world you're writing from, if you don't mind. It's always interesting to see where people are visiting from.


You can use basic HTML; be sure to close tags properly.

Subscribe without commenting