Will a 24-70mm f/2.8 work on a Nikon D90 DX body?
Maninder Singh, Dehradun, India
Matt says… There’s no issue in using a full-frame lens on a DX body, Maninder. The only issue comes when you try to do the opposite: attaching a DX lens to a full-frame body will result in an image with a black frame all around the image, as the (smaller) image circle of the lens won’t cover the sensor. The 24-70mm f/2.8 is an excellent, versatile lens. The only thing to bear in mind is that, with a cropped sensor, the effective focal length of the lens would be 36-105mm. This would probably be an advantage for most types of photography, but for landscapes it wouldn’t be as useful. I’d still recommend the lens, though, as it’ll be useful if you ever choose to upgrade to a full-frame body.