Macro Photography or Macro is an area of photography, in which images of objects scales to 1:1 or more. Differences exist between a Macro with a Close Up shot. Normal lenses has a maximum magnification limit ratios ranging from 1:7 to 1:10. With special Lens and diaphragm arrangement, this can be made 1:1 – this is the basic optics behind Macro Photography.
Definitions of Macro Photography
You will notice a red flower with two green leaves icon in the consumer grade compact digital cameras – they claim it is for Macro Photography. Honestly, that is Close Up shot not Macro Photography.
Many definitions and formulas for Macro Photography. Macro Photography is completely independent of the distance to the subject.
Tools for Macro Photography
The main tool for Macro Photography is a good DSLR, best if it is a full frame DSLR and shots are usually saved in RAW Image Format for better control in post processing. Other Indispensable tools for†Macro Photography are :
Reverse Lens Adapter : Probably most commonly used by the armatures as it costs a fraction compared to a real Macro Lens. It has assembly to fit a normal lens to the body of the DSLR, giving an 1:1 magnification. However, all automatic control on the lens is lost.
Microscope attachments†: †Quite obviously, if a DSLR is mounted over a optical microscope with proper fittings, it will be able to take†Macro Photography, most more than 1:1 magnification. It is suitable for educational purpose.
Close-up lenses and Extension tubes : †Close up lenses are inexpensive simple magnification lenses that fits on the front of a DSLR lens. However, it might add different aberrations.
Bellows :†Bellows were very popular for the medium format film SLR†Macro Photography and most primitive method.
†Macro Photography Lens :†Canon EF lens, 100 mm f / 2.8 Macro, ultrasonic motor (USM)
Macro Lenses : Macro Lenses are designed for Macro Photography. Macro lenses can be used with a very small object distance and without any additional accessories magnifications, such as 1:2 (Figure is half the size of the object) or 1:1 can be achieved. At a magnification ratio of about 1:4 a lens is called a macro-capable Lens and is widely used by Macro Photography enthusiasts.
Macro Photography looks great, but the cost of the Macro Lenses are prohibitive.