Affordable, very light and the perfect travel lens if you don't like long shots but want something longer in your travel bag. I'm using an old Olympus 50-200mm lens, a fantastic lens and one of my absolute favorites. However, this is a large and heavy lens. So when my family is on vacation and I want to have a long focal length lens on hand, this 40-150mm lens does the job perfectly without taxing my gear while still delivering great image quality. I usually shoot from a wider angle so I don't need a large focal length when traveling, but I can carry this around without feeling like I'm lugging a brick in my backpack, which is important when I'm walking around town all day run. I recommend it to anyone who wants to get good image quality at long focal lengths and especially for the travel bag.