Raycus 50W red laser
Categories:
Laser
312
1
0
2023-02-24
C
Abel
2023-02-27Because you have changed the lens with different working planes, your focus position has also changed. Suppose your 200200 lens focus position is 20, then if you change to a 9090 lens, your lens will become smaller at 10 , so be sure to re-adjust the focus, otherwise the situation you said will appear
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