Magnification of the 500D with the EF 28-70mm f/2.8L USM zoom lens is 0.30x-0.14x (70mm: closest, infinity) while on the EF 70-200mm f/2.8L USM, it is at 0.20x-0.14x (70mm: closest, infinity) and 0.52x-0.39x (200mm: closest, infinity). The 77mm 500 D Close-up Lens version has a total diameter of 80mm, an overall length at 13.5mm and a dry weight of 145 grams. These photos below of the magnetic 1998 Commonwealth Games Mascot, Wira, were also photographed with the EF 28-70mm f/2.8L USM zoom lens/500D combination. At the infinity position (70mm) Closest focusing distance (70mm) Autofocus is possible with the Close-up Lens attached but Canon recommends that manual focus be used by setting the lens to its closest focusing distance and moving nearer to the subject until focus is achieved. It will help too; if the built-in beep function is switched on to let you know when the correct focus has been achieved as you close in on the subject. Canon also recommends stopping down the aperture to f/5.6 or f/8 will yield the best results. It is also not advisable to have more than one Close-up Lens to be attached to the prime lens as this will lead to poor image quality or vignetting. Any skylight or UV filter that is attached to the prime lens is to be removed before fitting the Close-up Lens. Obviously, the longer the focal length of the prime lens coupled with its closest focusing distance, the larger it will be for the magnification of the small objects that can be photographed with the Close-up Lens 500D. The EF 70-200mm f/2.8L USM zoom lens has a closest focusing distance of 1.5m/5 ft at all focal lengths. Set it to the 200mm position and the closest focusing distance, the subject's magnification will be obvious indeed. These photos below of a Canon EOS-1V tiepin, both the US and Malaysian 1 penny coins were photographed with both the EF 28-70mm f/2.8L USM (70mm) and EF 70-200mm f/2.8L USM lens. EF 28-70mm: closest distance at 70mm EF 70-200mm: closest distance at 70mm     EF 70-200mm: at infinity position (200mm) EF 70-200mm: at closest distance (200mm) At 0.52x magnification (slightly more than 1:2 life-size) with the EF 70-200mm zoom lens set at its 200mm position and at the closest focusing distance, this is indeed one close-up capability made possible simply by attaching the Close-up Lens 500D. The EOS-1V tiepin shown above may not give you an idea of how small it is but the accompanying two pennies would definitely reveal its overall size. The 0.52x photo shown here is full-frame with no cropping. << Back to Main . 1 . 2 . 3 .