faxmanjazz
Oakley Expert
- 565
- 663
retinaburn and sander are right. Switchlock relieves stress on the lens. I haven't seen these in person so i can't give you a detailed description but there is always a purpose behind what Oakley puts out. Take the fast jackets for example, takes longer to change the lens than a flak jacket but the lens is suspended while in the frame. Also it puts people at ease not hearing all the cracks and pops of changing the lens, thinking they will brake it.