Light passthru in addiction to magnification

by **Snakebite** on Thu Nov 08, 2007 2:02 am

Hello,

can someone tell me any addictions between light passthru and magnification? The higher the magnification the lower or higher the passthru?

Cheers!

by **Jne_K** on Thu Nov 08, 2007 12:06 pm

Hi

Basic law of optics - all else being equal, as magnification goes up, image brightness goes down.

by **Sakebite** on Thu Nov 08, 2007 12:20 pm

Hello there,
well, which one should I prefere then to watch deers in around 100-200ft: 3x42, 4x50 or 5x60?

Cheers!

by **Jne_K** on Thu Nov 08, 2007 12:26 pm

Hi

Any of those will be fine - all take in as much light as your eye can use, anyway.