I just received a Sanwu blue, 445nm, 3000mw laser today.
When I focus it, ...it's either a dot or it goes to a large rectangle in either direction very quickly. Is this normal for this laser? With my Dragon Laser 2X beam expander, it reduces it to a nice small beam.....
does this laser require that I buy their beam expander to get the type of tight beam that we are all looking for??
When I focus it, ...it's either a dot or it goes to a large rectangle in either direction very quickly. Is this normal for this laser? With my Dragon Laser 2X beam expander, it reduces it to a nice small beam.....
does this laser require that I buy their beam expander to get the type of tight beam that we are all looking for??