The Firing Line Forums - View Single Post - What is the difference in scopes magnification?

Brian Pfleuger · August 7, 2012, 06:15 PM

The 40 and 50 is the size of the front lens in millimeters, not magnification.

They both magnify from 3x to 9x, one has a 40mm front lens, the other a 50. In theory, all else being equal, the 50 let's in more light, will be better in low light.

August 7, 2012, 06:15 PM	#2
Brian Pfleuger Moderator Emeritus Join Date: June 25, 2008 Location: Austin, CO Posts: 19,578	The 40 and 50 is the size of the front lens in millimeters, not magnification. They both magnify from 3x to 9x, one has a 40mm front lens, the other a 50. In theory, all else being equal, the 50 let's in more light, will be better in low light.