danob [D. L.
It is better to spend more money on the
lens than the camera. Investing your
money into the best lens you can afford
better photographs than a more expensive
camera body. Birds are very small
subjects and in order to get a
size; you need long telephoto lenses.
Each 50mm of lens is approximately equal
to 1X on a binocular.
(i.e. a 300mm lens = a 6x binocular) A
300mm lens can be used, but 400mm and up
is desirable. If you look at most
professionals, they use 500mm or 600mm
lenses, often with teleconverters to
increase the effective focal length. An
stabilizer can also give you up to two
stops better and make it possible to
hand hold which will open up more
getting birds in Flight, when you should
consider the use of Shutter priority and
select at least 1/5OOth. Lenses are
categorized according to focal length
and f-stop. The f-stop determines the
light gathering ability of the lens.
Consider F5.6 as the minimum. The
smaller the f-stop number, the more
light it gathers and gasteer shutter
speeds are possible.
However, the cost and weight go up
exponentially with each f-stop.
400mmF5.6 lenses are excellent starting
points and can be
had for a reasonable sum. Off-brand
makers such as Sigma and Tokina offer
good quality for the price. For example,
Tokina's AF400mmF5.6 was rated superior
to a top brand in a recent lens review.
For best value for your money,
watch the classifieds for a used lens,
but test it appropriately before
purchasing. (shoot some test images)
of the lens choice a lens tripod mount