MACRO EXTENSION TUBES
Macro extension tubes adds high magnification capabilities to virtually any camera lens. This can give a whole new range of subject matter to your existing camera equipment. However, it’s often unclear exactly how much magnification you’ll gain.
EXTENSION TUBES OVERVIEW
An extension tube is simply a hollow cylinder that fits in between your camera and lens, causing the lens to move further from the sensor. This additional distance allows your lens to focus more closely, which in turn provides more magnification capability. Unlike most lens accessories, extension tubes don’t add any extra optics, and are therefore relatively inexpensive, simple devices.
Continue Reading the article here : Extension Tubes – An alternate for Macro Lens