Wednesday, July 02, 2008

Of Wide Angle Lens - The Comparison

Melbourne Central 17mm (by changyang1230)
1/60s - f/5.6 - ISO 100 - 17mm
This is the widest you could get with ordinary lens. In this case, 17mm. Yup, it's the same focal length in "The Tower" I shot earlier.

Melbourne Central 10mm (by changyang1230)
1/800s - f/5 - ISO 400 - 10mm
This is what you get with 10mm on the super-wide lens. If you have ever been to Melbourne Central, you could definitely appreciate the vast angle of view in the shot.

Technical Note: The duller colour in the first pic is not the fault of the lens. It was because I didn't bother processing it because it's not a "good" photo. I just took it to compare the focal lengths.


Lee Young, 李阳 said...

Hi ;)
There's a Nikkor Fisheye 16mm that offers a full frame picture angle of 180 degree(diagonal).

I just want to ask whether a 10mm lens offers much wider picture angle? It seems weird for a 16mm to have a 180 degree fisheye coverage..

changyang1230 said...

I just read up on some articles about fish eye and wide angle a few days ago, and apparently for the same focal length of rectilinear wide-angle lens, you don't get the same angle of view of fisheye.

My 10mm for example, gives around 110 degree view diagonally.

It's also important to note that the angle of view also depends very much on whether your camera sensor is full frame. You can find more information about the angle of view formula for rectilinear lenses here.

changyang1230 said...

Also, find out your sensor size here.

Lee Young, 李阳 said...

Thank you ;)
I've read up both articles

Casper said...

Damn..I want shorter focal length as well :(

The shortest i can get with my cam is 28mm... and the adapter is somehow...expensive

changyang1230 said...

What's your camera?