44mm Secondary Optics (Glass / 5-Pack)

Pros: Cheap, the lenses are very clean, I can even use it as a Macro lense for my camera!!!! Posted one picture of the art. number to proove it!

Cons: None, just a great lense.

Other: Get it, if are looking for a lense like this.

Pros: Quality seems great, I couldn't notice any defects. Tried them with a red laser pointer and they focus the spot nicely as expected. Each lens was individually wrapped in non-scratching paper.

Cons: They are spherical, so quite big, and not the easiest ones to handle with without using gloves to prevent fingerprints. Also they don't come with anything to attach them anywhere, so you'd better have the target application provide correct sized rings where to put the glass to.

Other: For 5 good quality glass lenses, this is not a bad price. Even though I only got 3, it's still okay price.