Nature Photographers Network
This is the preserved archive of the original Nature Photographers Network. The community continues at naturephotographers.network.

Bracketing and time exposure question

Discussion

2 replies
Posted by David Prichard on August 11, 2006 at 12:36 PM
It is now getting dark enough here that the Northern Lights are starting to reappear. I had thought to give HDR a try to see how it might render.

If the camera has the exposure changed manually there is the chance it may shift slightly on the tripod. I could bracket automatically but with a minimum exposure of 30 seconds fear, if I set the camera to to continuous, the delay in advancing frames may damage the camera.

Has anybody any experience in this regard?

Cheers,
Dave
Posted by Guy Tal on August 11, 2006 at 2:29 PM
Dave,

I'm not sure what you mean by damaging the camera due to the delay. I doubt this is actually a problem.

If your camera supports auto-bracketing, that may be your solution - click it once and let it automatically expose 2-3 frames at whatever interval you want.

If that doesn't work, just make sure your tripod is sturdy and everything is locked down securely. Handle the camera lightly and give it a couple of seconds before releasing the shutter to make sure there are no residual vibrations from handling. Chances are you can do it without any noticeable shift.

Guy
Posted by David Prichard on August 11, 2006 at 3:11 PM
Guy,

I may till be thinking analogue instead of digital! With the D2X you can set the bracketing for a certain number of exposures and then run it on continuous setting like a motor drive. I doubt I would do this with a motor drive as it would be under mechanic strain all the time during the exposure.

While the digital camera doesn't have such film transport problems, my concern is that should I run it on continuous, it may place a strain on the camera waiting for the exposure to complete, that will damage the camera. There is a part of me that says because the camera is digital it should know to wait. Don't want to find out the hard way I'm wrong! :frown:

As you mention the best, and safest, solution may be to do it manually.

Dave