Rule of Doubles: 8 STOPS below the Reciprocal Rule!

The Rule of Doubles guarantees you the cleanest possible low-light photos, allowing you to shoot with longer shutter speeds and lower ISOs. I regularly shoot handheld at 8 stops below the reciprocal rule.

For more, SUBSCRIBE and like http://fb.com/NorthrupPhotography
#1 book with 14+ HOURS of video at Amazon: http://help.tc/s
Worldwide use 10% off coupon 'YouTube': http://sdp.io/sdpbook

Get my Photography Buying Guide at Amazon: http://help.tc/b
Worldwide use 10% off coupon 'YouTube': http://sdp.io/buybg