I bought this for my ED 12-50mm F3.5-6.3 EZ and I absolutely love it. I have had other lens hoods in the past that don't stay on, but this one stays in place perfectly. It also can be put on backwards when not in use or in storage so I am not fumbling around in my bag trying to find it. It is a little difficult to get the lens cap off when it is on, but still manageable.

The lens hood works wonderfully with the 40-150 mm lens. It stops away nicely to fit in my camera bag.

It gives a very good professional look for my lens and camera. Plus it covers the lens from extra lights very well.

Essential accessory for the 40-150 m.zukio 1:4-5.6. Fits well, and can be used in reverse to save room in your camera bag providing some protection to your lens barrel as well