Multi Shot Noise Reduction: I have been experimenting with some of the features on my 7D Mark II. One of the features I have been working with is the Multi Shot Noise Reduction option.

haroldross Loc: Walthill, Nebraska

I have been experimenting with some of the features on my 7D Mark II. One of the features I have been working with is the Multi Shot Noise Reduction option.

Here are two straight out of camera samples with two cropped sections. these were taken at ISO 51,200 with the 7D Mark II. The camera did all the processing except for the cropped samples that were cropped in PhotoShop.

ISO 51,200 no noise reduction

(Download)

ISO 51,200 multi shot noise reduction

(Download)

ISO 51,200 no noise reduction crop

(Download)

ISO 51,200 Multi Shot Noise Reduction Crop

(Download)

Bill_de Loc: US

That is quite impressive Harold. Thanks for posting

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bigwolf40 Loc: Effort, Pa.

haroldross wrote:

I have been experimenting with some of the features on my 7D Mark II. One of the features I have been working with is the Multi Shot Noise Reduction option.

Here are two straight out of camera samples with two cropped sections. these were taken at ISO 51,200 with the 7D Mark II. The camera did all the processing except for the cropped samples that were cropped in PhotoShop.

Why wouldn't you shoot in noise reduction all the time. Does it slow down the camera? It looks quite good and if taken into a noise reduction PP such as Topaz it would properly even look great. ....Rich

Bill_de Loc: US

bigwolf40 wrote:

Why wouldn't you shoot in noise reduction all the time. Does it slow down the camera? It looks quite good and if taken into a noise reduction PP such as Topaz it would properly even look great. ....Rich

Reducing image noise also causes the image to lose some sharpness. This is the reason it can, and should, be turned off when not needed.

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haroldross Loc: Walthill, Nebraska

bigwolf40 wrote:

Why wouldn't you shoot in noise reduction all the time. Does it slow down the camera? ....Rich

In Multi Shot Noise Reduction, the camera takes 4 shots in a row (10 fps). If there is movement, then you would have motion blur. For stationary objects and such this is an option. The camera has to take time to process the files so there is a slow down.

If you look at the stamped number along the left side of the label in the SOOC images you will see the advantage of the multi shot noise reduction over the traditional noise reduction. With traditional noise reduction this number would probably be blurred beyond recognition.

Preachdude Loc: Geneva, OH

In most cases, in-camera noise reduction does reduce image sharpness. One of the reasons I like Noiseware is that, when reducing noise with it, the software can be adjusted to enhance edge contrast, thus improving perceived sharpness.

Rongnongno Loc: FL

Image stacking is one of the cleanest way to remove noise. The only trouble with it is that the use of a tripod is recommended.

Hand held does not work so well, especially in camera.

There is one small* problem when shooting at 51k ISO: the dynamic range is also affected and that cannot be corrected.

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* Small because few folks will care about that loss when editing.

haroldross Loc: Walthill, Nebraska

Rongnongno wrote:

Image stacking is one of the cleanest way to remove noise. The only trouble with it is that the use of a tripod is recommended.

Hand held does not work so well, especially in camera.

There is one small* problem when shooting at 51k ISO: the dynamic range is also affected and that cannot be corrected.

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* Small because few folks will care about that loss when editing.

I wouldn't recommend shooting at ISO 51,000 with the 7D MK II a lot because of the loss of DR. This was mainly an experiment to see what the resulting image would look like. It looks ok until you put it next to the same shot taken at ISO 100.

DirtFarmer Loc: Escaped from the NYC area, back to MA

If you're shooting stationary objects, you could use a longer exposure at a lower ISO.

haroldross Loc: Walthill, Nebraska

DirtFarmer wrote:

If you're shooting stationary objects, you could use a longer exposure at a lower ISO.

That is true. Under some circumstances, the longer exposure could create a noise of it's own. With the Canon cameras there are two types of noise reduction settings; Long Exposure Noise Reduction (noise created by long exposures- 1 second and longer- this tends to be a fixed pattern noise) and High ISO Noise Reduction which tends to random.

This examples were taken at f/9 to get the depth of field I wanted at the expense of a softening of the image slightly. I focused on the front and center of the label hoping to also get the number on the left of the label to be clear enough to read.

DirtFarmer Loc: Escaped from the NYC area, back to MA

haroldross wrote:

That is true. Under some circumstances, the longer... (show quote)

On my Nikon, Long Exposure Noise Reduction can be turned off. I generally use it off, but I don't generally do exposures greater than a second or two.

For real control over depth of field, use focus stacking.

ofwiah Loc: NC via MD

Thank you for this post. I bought a 7D Mark II just before Christmas and I have mixed feelings about the camera. One of the concerns is the amount of noise that I am experiencing. It seems to me that most of my pictures are noisy. The blue bird was shot and ISO of 650. I used the Canon 100-400 lens, handheld. The bird was sitting in the shade when shot. Is this a noisy picture or not?

haroldross wrote:

I have been experimenting with some of the features on my 7D Mark II. One of the features I have been working with is the Multi Shot Noise Reduction option.

Here are two straight out of camera samples with two cropped sections. these were taken at ISO 51,200 with the 7D Mark II. The camera did all the processing except for the cropped samples that were cropped in PhotoShop.

Blue Bird

SteveR Loc: Michigan

ofwiah wrote:

Thank you for this post. I bought a 7D Mark II just before Christmas and I have mixed feelings about the camera. One of the concerns is the amount of noise that I am experiencing. It seems to me that most of my pictures are noisy. The blue bird was shot and ISO of 650. I used the Canon 100-400 lens, handheld. The bird was sitting in the shade when shot. Is this a noisy picture or not?

It would be better if you would hit "store original" so we could pull up a better download of the photo.

ofwiah Loc: NC via MD

SteveR wrote:

It would be better if you would hit "store original" so we could pull up a better download of the photo.

What I hit was "Send" after I attached the picture. I don't know what store original is.

lowkick Loc: Connecticut

Are these shot in JPEG? Can you use the Multi-shot Noise Reduction in RAW?