adjusting the camera's lens length

 From:  jbshorty
1585.1 
Hi Michael. My current workload has me dealing with many long, thin objects. The viewport becomes a bit unnatural at the default camera lens length (50mm?). Is there any way to adjust it? I would prefer it to be around 35mm...

Thanks,
jonah

EDITED: 30 Apr 2008 by JBSHORTY