Zetopan focus block
Posted: Thu Feb 23, 2023 4:21 am
I have a beautiful Reichert Zetopan. Everything works well except the fine adjustment. It turns, but does not raise or lower the stage. I assume that some part of the internal mechanism is broken or disengaged.
I can use the scope with just the coarse adjustment up to a 40x objective (with difficulty), but I'd really like to get the fine adjustment working, as this will eventually be a gift for my grandson.
I was able to find a working focus block from another Zetopan at a reasonable price. It's the whole unit, complete with coarse and fine adjustment knobs. It looks complete and both knobs move the mechanism properly. I can see the gears turning inside.
I'm tempted to try swapping out the current focus block and replacing it with the one that works. However, I'm a little nervous about it, since a mistake might leave me with a totally nonfunctional scope.
Has anyone done this? Any informed advice? It looks like all that's required to make the swap are a few screws, but I don't know what might be hiding in the shadows.
I'm attaching pictures showing both sides of the working focus block.
I can use the scope with just the coarse adjustment up to a 40x objective (with difficulty), but I'd really like to get the fine adjustment working, as this will eventually be a gift for my grandson.
I was able to find a working focus block from another Zetopan at a reasonable price. It's the whole unit, complete with coarse and fine adjustment knobs. It looks complete and both knobs move the mechanism properly. I can see the gears turning inside.
I'm tempted to try swapping out the current focus block and replacing it with the one that works. However, I'm a little nervous about it, since a mistake might leave me with a totally nonfunctional scope.
Has anyone done this? Any informed advice? It looks like all that's required to make the swap are a few screws, but I don't know what might be hiding in the shadows.
I'm attaching pictures showing both sides of the working focus block.