Acxico 1Pcs 405nm-488nm Blue Laser Diode Collimation Focus Lens 3 Elements Glass Lens

Got a more precise beam that doesn't spread out as much as the original lens. It did take quite a few tries to get the focal length perfect though.

If you have a blue laser it is important to maintain a good focusing lens, whether you use it for pointing or burning, a good lens is a must have. Well worth the cost.

Takes some time to get the lazer dialed in but it works. Ill have to do some tests to see if it is any stronger but you definitely cant see the beam as much as my other one

I bought one of the higher powered blue lasers off of amazon. But it had very significant beam divergence even at relatively short distances. This lens is much better than the one that came with the laser. The beam is much better focused and round at longer distances than the stock lens that came with the laser Also this lens seemed to be prices alot cheaper than others as well. Very well worth it. Improved the performance of my laser significantly

Absolutely worthless. Worse condition than the lens being replaced.

I purchased this lense because of the 3 element high permeability feature, expecting an improvement in focus compared to lenses I purchased from other vendors. The review video about a "perfect Laser dot" indicated this lense has above average collimation and focus. My Laser diode cannot be focused to a dot because the beam is a wide rectangle. The best focus produces a short line. This lense made a shorter, better focused and much brighter line. The energy reaching the target appears to be more than double. The Laser body is much cooler. VERY IMPRESSIVE.

Love that once aligned, so all the down on focusing it is focused to infinity, slightly opening the focuser and it will light a candle 5 to 6 feet away. Amazing

Thought it would concentrate the beam. Just weakened and expanded it instead. Tried both ways even just in case

Much better than the original plastic culminating lens fits my blue laser pointer well