Olympus Zuiko Digital - Telephoto zoom lens - 40 mm - 150 mm - f/4.0-5.6 ED - Four Thirds - for Olympus E-3, E-30, E-410, E-420, E-450, E-520, E-600, E-620; EVOLT E-410, E-420, E-520

Of course it is a genuine Olympus lens. It is very compact for the focal length of the lense, it is very little longer than the 14mm x 42mm lense that came with the camera. I buy on line thru Walmart and have it shipped to the store as often as I can. Great way to shop.

The product seem great, however, it was the wrong size for the camera and we had to return it. Since the correct lens is named very similar to this product, you need to be very careful in ordering these lens online. There were many ads for this lens and I was lucky to purchase it from Walmart, where I had no problem returning it. I'm sure it would have been a real problem returning it for the correct size I needed with other companies.