Just a minor note on focal length and perspective. (A little obsession of mine. There are certain things that get taught wrong over and over again and it drives me nuts)
The focal length does not change perspective, but changing your camera position does. POV is related to perspective and focal length/film format determines how much you get in the frame.
karl shah-jenner <shahjen@xxxxxxxxxxxx> wrote:
----- Original Message -----
From: "tdtran tran"
: I'm new to the forum and cameras as a whole. I'm looking for a camera
for
: high speed application.
: Specifically I need to capture a moving vehicle travelling at 100km/hr
and
: I'm not sure where to start learning what I need. Specifically I would
like
: to know what type of lens I need, setup (how far away to put the camera
: etc), the type of detail I can get, and anything else that may be
relevant.
: Could someone please point me in the right direction (texts, online
: materials, someone I can talk to etc). I'm sorry if this is the wrong
place
: to ask.
A number of methods come to mind, bare with me here as I'm dosed on
medication and prone to make little sense at the best of times..
One method is to clamber aboard a vehicle moving at the same speed in the
same direction then pick whatever lens suits the angle of view you want
(50mm is boring but a 20mm looks nice if you can get low to the ground!)
Another technique involves panning with the vehicle as it passes you, again
choosing an angle of view which best suits your needs..
Finally you could stand 40 feet back with a fisheye and get the vehicle pin
sharp at 1/500th of second but it'd be kinda small in the frame.
For a sensible comparison of focal lengths created by me in a more lucid
moment, see here:
http://tinyurl.com/cymdc
in this page the word 'perspective' means distance. I find the series
helps comprehend expansion and compression of detail relative to angle of
view better than many of those pages which show a whole mass of buildings
progressing from teeny dots to a single framed window
..if you catch my drift
Personally I'd prefer to travel at high speed with my subject, it's kinda
fun and you have plenty of opportunities to take lots of shots
k
Herschel Mair
Head of the Department of Photography,
Head of the Department of Photography,
Higher College of Technology
Muscat
Sultanate of Oman
Muscat
Sultanate of Oman
Adobe Certified instructor
+ (986) 99899 673
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