This extension tube works great if you don't wanna spend a ton of money on a macro lens. However, there are no electronic contacts so you're camera can't communicate with the lens; therefore, you lose auto focusing and aperture control. I don't use auto focus much so that wasn't a big deal, but the loss of aperture control is kind of a bummer. Reason being, since you can't control the aperture, if you are shooting in the middle of the day more times than not you're picture is going to be get blown out by sunlight. Although, I have had avoided this by using faster shutter speeds and eventually buying a neutral density filter. So keep in mind, you get what you pay for.