Nick,
I waited until the sun was low on my side of the pond to see if I could duplicate your problem. I could.
And I think I know what is happening, and it may not be exactly what you think. I base this on what I saw this afternoon, and experiences with a lot of photographers over the years who have encountered your problem in a slightly different way (I have conducted photography tours for many years). There may, or may not, be a fix. And it may be age dependent.
First, the test conditions: I held the camera in front of my face, with the sun in front of me.
Yes, there was a reflection of my face staring back at me from the glossy LCD. Because I was looking into the sun, I had trouble even seeing the LCD at first. I could see myself. The bright sunlight shining directly into the lens washed out the image that I could see - barely - on the LCD.
Repositioning slightly so that the sun was no longer shining directly into my eyes, but was still on my face, the reflection was still there, and still masking the washed out LCD.
Then I turned 90 degrees to the sun, so that half my face was lit. I could still see a significant reflection. The reflection did indeed seem to swamp at least half the now otherwise normal appearing LCD. In fact, my reflection dominated the LCD, even though it did not fill it completely. I would have that I would have been able to at least see half the LCD screen clearly. But no, I couldn't, there was just a dark blob to the left of the reflection of my face.
I've seen this visual effect before, with my ancient Rolleiflex twin lens reflex cameras. I have a special binocular hood for them, with a magnifier to enlarge the viewing mirror. The mirror is a few inches from the person looking into that binocular hood. The image of the world beyond, that's being focused on, is at least a few feet out from the camera.
Some people have difficulty focusing their eyes on the image in the mirror (also known as a ground glass or viewfinder - it's a 2.5 inch mirror). Their eyes automatically attempt to focus on the ground glass itself, which is inches away from their eyes, rather than focusing on the scene in reflection, which is some distance out from the camera.
Do you follow?
The inability to focus on something beyond the ground glass is similar to what I encountered when I looked into the TZ5's LCD, at least when I had my face in or partially in the sun. I tended to focus my eyes on the surface of the LCD itself. When I made a conscious effort to look "into" the LCD at the scene in the distance - which was darker than my reflection - my face disappeared! After a few moments of practice, I could switch back and forth at will. There was my face in reflection one moment, and then I refocused on the scene beyond my reflection, and the scene popped into view.
I think this is what you are encountering. I think you are not able to look into the LCD at the image that is there. You are looking instead at the bright reflection of yourself.
This is just a guess, but are you older rather than younger? Say 50 or older? It turns out that younger people who've looked into my bino hood on my Rollei can always accommodate their focus to see what's beyond the ground glass. On the other hand, many people over 50 or so seem to have difficulty focusing on anything other than the surface of the mirror.
Here's my suggestion. When the sun is low, turn about 90 degrees - or even more - to the direction of the sun. That way only part of your reflection is going to appear on your LCD. You will see your reflection. Practice trying to look past your reflection into the darker portion of the LCD. I think, with practice, and possibly in a very short time, you will be able to switch off looking at yourself, and be able to see the view beyond.
Now, looking straight into the sun is another story - keeping the sun out of your eyes as well as not overloading the circuits of your poor TZ5 will be a challange, much less not seeing your own, handsome reflection. I think I won't be making many of those kinds of photographs. But I will be on guard now when the sun is low to look beyond my own reflection! After all, some of the best light occurs when the sun is low, and I don't intend to put my new little Tizzy in my pocket at that "magic hour."
Good luck.
Dave
P.S. I'm over 50
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