Quote Originally Posted by planters View Post

Song,
Could you rather post comparative images of the static spots of these two lasers against a flat surface?
Sorry, Just see this... Can't take the pictures now. the 637nm is a little Spot(circle) after 2meters, the 650nm is....a big square.....

and here is another pictures that I took before, they are "shot" from the laser head directly, not from a projector:
Click image for larger version. 

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