Giới thiệu Ống kính mở rộng Macro cho EOS EF DSLR & SLR
Brand new, never used;
Made of metal
Color : black
Adjustable Length
Package Include :
1 * Extention Tube
Remarks
There are no electrical contacts in the extension tubes. Exposure has to be adjusted manually. Aperture control is not available if you use a lens which does not allow you to manually adjust the aperture (without an aperture ring).
How to use it:
1. set your lens to maximum aperture
2. set-up camera and lens to manual mode, switch off and detach the lens;
3. attach extension tube between the camera and lens according to red dot.
4. put your camera on tripod, or better on rail system;
5. put object close to the lens and use lot of light (2-3 flashguns, or 3x 500w lamps, or at least 1 strobe-light, or take pictures outside in bright sun);
6. increase ISO, decrease shutter speed;
7. focus by moving camera further or closer if on rail system, or use manual focus ring on lens slowerly until object in focus.