MarkBarbieri
Semi-retired
- Joined
- Aug 20, 2006
- Messages
- 6,172
For people taking very long exposures, do you leave noise reduction turned on or off?
I'm not sure how it works for other cameras, with mine there is a menu option for noise reduction (dark frame substraction). When it is turned on and you take a shot longer than 1 second, it takes a second shot with of the same duration with the shutter closed. It subtracts the second shot from the first to eliminate noise. It's quite useful, but it doubles your exposure times. If you are shooting 5 second exposures of fireworks, it means that you need to wait another 5 seconds before you shoot again. I'm not sure which I'd prefer - more pictures with higher noise or fewer pictures with lower noise.
I'm not sure how it works for other cameras, with mine there is a menu option for noise reduction (dark frame substraction). When it is turned on and you take a shot longer than 1 second, it takes a second shot with of the same duration with the shutter closed. It subtracts the second shot from the first to eliminate noise. It's quite useful, but it doubles your exposure times. If you are shooting 5 second exposures of fireworks, it means that you need to wait another 5 seconds before you shoot again. I'm not sure which I'd prefer - more pictures with higher noise or fewer pictures with lower noise.