HHT example

Woke this morning to a bit of snow. Coming down harder now than it was when I took these @ 0630. I decided to try out the Hand Held Twilight (HHT) mode on the 5N to see if it worked. These were taken @ ISO 6400, 1/25 sec exposure, f/3.5 kit zoom. first shot is OOC, second is tweaked in PS. The first is pretty close to what the scene actually looked like.





Couple more here- http://bimjo.blogspot.com/
--
Jim Parsons

Does it has less noise than regular A mode with iso 6400?

payo36 said:

Does it has less noise than regular A mode with iso 6400?

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I don't know, I didn't take a regular A mode shot to compare with, sorry. I'm not sure what effect shutter speed would have on noise, somebody with more knowledge on that should dive in and enlighten us.

--
Jim Parsons

payo36 said:

Does it has less noise than regular A mode with iso 6400?

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Not from my experience...it's pretty noisy...
--
FlickR Photostream:
http://www.flickr.com/photos/46756347@N08/

payo36 said:

Does it has less noise than regular A mode with iso 6400?

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Yes, it definitely has less noise than a standard ISO 6400 pic - that's one of the main advantages of this mode. It stacks the 6 images, and eliminates noise in the process of "flattening" them. Of course, you could potentially lose detaiil too. Like anything, it's a trade-off. My experience has been that it eliminates noise, and does a very good job of retaining detail.

ISO 6400:



ISO 3200:



ISO 6400:



--
Keith
http://keithinsp.smugmug.com/
http://www.pbase.com/themitty/
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it should have less noise in HHT than a single shot @ 6400 as the process of combining the images could reduce the noise spots.

HHT mode will always have less noise than a comparable single frame shot at the same aperture and ISO. HHT mode takes 6 shots, and merges them into one. Because noise is randomly occurring, it is in a different spot in each of the 6 frames. By merging the 6 frames together, you are able to assemble a single photo using the areas of each of the 6 photos that have little or no noise - the 6 frames end up averaging out most of the noisy pixels, which only occurs in one unique place in each frame. This also has the side-benefit of allowing you to rebuild detail that otherwise would have been obscured by noise in a single frame, since in at least one or more of the 6 frames, you can likely find most or all parts of the photo having no noise, and the camera will use that portion of the frame when stacking the 6 photos into one.

--
Justin
galleries: http://www.pbase.com/zackiedawg

Well, now we know, thanks all for posting.
--
Jim Parsons

Maybe this is better?

LTZ470 said:

payo36 said:

Does it has less noise than regular A mode with iso 6400?

Click to expand...

Not from my experience...it's pretty noisy...
--
FlickR Photostream:
http://www.flickr.com/photos/46756347@N08/

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LTZ470 - You're probably thinking of Anti-Motion Blur, not Hand Held Twilight. AMB stacks like HHT, but for things that are moving in the shot, it uses only 1 of the 6, which results in the moving portion of the scene (a person, for instance) being very noisy, while stationary objects are clean. HHT is not meant for moving objects, and produces very clean images at high ISO. Below is the example of an HHT I shot that I keep using in all these HHT-related threads.

I find it hard to believe that this was shot at 6400...

AlexG47 said:

Maybe this is better?

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What? You have something against sodium vapor colored sky?

Seriously, that looks good, I just didn't think to carry it that far.
--
Jim Parsons