a good 300mm lens, with a maximum aperture of F4, is not cheap. A Canon lens of these specs, with image stabilisation, costs around $1,200.
An alternative is a 75mm - 300mm zoom, but here you will usually have a maximum aperture of F5.6. This means shooting at a slower shutter speed and a greater chance of blurred pictures from camera shake.
Bear in mind also that these lenses, combined with your 35mm camera body, are fairly heavy and bulky.
A very satisfactory but underrated alternative to this traditional set-up is a digital camera with a powerful zoom lens.
In addition to my Canon digital SLR equipment, I still use an ageing Olympus C-2100 UZ digital camera. It's only a 2.1 megapixel camera, but has an excellent X10 zoom lens. This equates to a 38 - 380mm lens, plus it is image-stabilised, so allows hand-holding at slower shutter speeds.
Below is a picture of a baboon taken in the Kruger National Park. It's been reduced from 1600 x 1200 pixels to 400 x 300, but otherwise unretouched. The shutter speed was 1/320, aperture F3.2 and the lens was zoomed to 317mm.
There are a number of digicams available today with 10x and 12x zoom lenses, which at their maximum zoom range will give you about the magnification you'd get with a 400mm lens on a normal 35mm camera.
The advantages of these cameras are:
* Big zoom range, allowing wide-angle scenic pictures, yet powerful enough to zoom in on more distant subjects.
* Wide maximum aperture - usually around F3.5 - that allows shooting in lower light at a shutter speed that minimises camera shake.
* Affordable - you don't need to hock your belongings to buy one, as might be the case if you bought a 400mm F4 lens (Canon's 400mm F4 image-stabilised lens with Diffractive Optics will set you back about $5,000!).
For more visit :
http://www.wildlife-pictures-o nline.com/affordable-wildlife-photo graphy.html
Answered by
Ashish Yadav
, an ibibo Wizard,
at
8:14 AM on October 06, 2008