Calgarypuck Forums - The Unofficial Calgary Flames Fan Community - View Single Post - Ongoing ‘spy balloons’ entering NORAD air space

accord1999 · 02-04-2023, 02:22 AM

But 35 thousand km above the surface means you need really, really good optical equipment to match the resolution you can get from a balloon at 20-40 km using an off-the-shelf full-frame sensor camera.

02-04-2023, 02:22 AM	#32
accord1999 Powerplay Quarterback Join Date: Aug 2010 Exp:	But 35 thousand km above the surface means you need really, really good optical equipment to match the resolution you can get from a balloon at 20-40 km using an off-the-shelf full-frame sensor camera.