Purchased my first binocular yesterday 10x42 UVHD Plus. I wear glasses. When I use the binocular without glasses on, I can see the object is not yet focused but the focus wheel is already in its final position, is this normal? With glasses on, everything is fine. Eyesight problem or possibly the binocular? Thanks.
I have an Ultravid and have had no problems setting its diopter and I would like to ask a few questions and make some suggestions.
1. Are you very nearsighted?
2. Were you able to see all objects, close up and far away, clearly with your glasses on when you took it out of the Box?
In other words, was the diopter centered in the neutral zone between +1 and -1 when you looked through it with your glasses on? That is the way it should have been set when you got it.
I assume you followed the instructions in your binocular manual on how to set the diopter when you tried it without your glasses on. (I have written them below.) You will have to do this every time you chose to use the binocular when not wearing your glasses.
There is a combined focusing system in the focus wheel. Care should be taken when setting the diopter. See the comments in the notes after the instruction on how to set the diopter.
To focus; my manual says to unlock the 2 rings on the focus wheel by pulling it up.
Quoting from my manual: "Now, the central focusing ring only affects the focus of the left optical system, the diopter ring only that of the right system."
"Using one of the rings, then focus the respective barrel on the desired subject. Continue with the optimal focus for the second barrel with the other ring. Pressing the diopter ring back down locks the set value."
"
Notes: The diopter ring rotates freely, i.e. It can be accidentally rotated by more than 360º with respect to the central focusing ring. Depending on the latter's previous setting, the combined system's focusing range can be limited considerably by this. Therefore, take care to turn the diopter ring only as far as necessary for the eyesight adjustment."
If you did all this correctly and still could not get good focus you probably need a binocular with more focus past infinity.
Bob