As the subject says, I’ve got a 50w 18mm lens blue white laser. I just replaced the tube with a true 50w and noticed that my lens has a brown spot. I just want to replace the lens. No upgrade. I noticed that there are differences in type , coating, etc… I searched but did not see any specific suggestions. Can you guys give me some recommendations on which lens to buy and who to by it from? Links are appreciated.
This is where I have traded before and with Cloudray as well. Focus lenses are available in different price ranges and with different focal lengths. I have a bit of everything and don’t buy the cheapest or the most expensive.
