Noise with 1DsMKII

[HKFEVER]

Can anyone post a picture taken in night time with ISO800 with 1DsMKII?

[HKFEVER]

Please check at this JPG and comment. It was taken under street light with 1DsMKII with ISO800, 50mm f/1.4 TV 1/160, without noise reduction.

The noise is very high!!:cry:

[pierrot]

Ooo... really noisy, yes! :shock: And @ 800 ISO only ? :cry:

[DCB]

I just popped out to the (very dark) porch to shoot this for you.

1DsMkII at 800 ISO, 1/6 second, resting on the porch railing, 16-35f/2.8, wide open, at 35mm:

http://www.el-paseo.info/downloads/noise800/noisefull.jpg

http://www.el-paseo.info/downloads/noise800/noise100.jpg

Let me know if you need anything else.

[CyberDyneSystems]

HK, your shot looks underexposed as well.. with the Canon CMOS sensros (and probably all digitals..) underexposed images dramtaically increase the noise level beyond "normal"

Your subject had a "whitish" background that may hvae messed up the exposure.. even it is not white.. thus underexposed.. bringing the entire image a stop or more towards the dark side.

[Cadenza]

HK, your shot looks underexposed as well.. with the Canon CMOS sensros (and probably all digitals..) underexposed images dramtaically increase the noise level beyond "normal"

Yes, CDS is quite right. I remember when I first got my
10D that I was disappointed with the noise level in the
shadows, even at ISO 400. Well, this was before I got
into the habit of checking the histogram, and it turns
out I and/or the camera was consistently underexposing
in several situations.

Just because you're using high ISO doesn't mean you can
underexpose. If you expose properly to the right, ISO 800 is
quite clean, and ISO 1600 is a perfectly viable alternative,
superior to the performance of ISO 1600 film.

[HKFEVER]

Thank you for the deatils. I will check with the exposure and shoot some later on this week. and post for comment.


The following were shoot the same night with AE mode. Is the noise OK or still too much.

[CyberDyneSystems]

Those look much better to me! :)

[HKFEVER]

How about this 100% crop from the above JPG? I think the noise is way too much.:(


Any suggestion?

[HKFEVER]

The above 100% crop was done in PS crop the original image with re-size the canvas then save for web.

When I save for web, I try to reach Max. and the file size within 100K.

Is there any easier way to do 100%?

[HKFEVER]

I just popped out to the (very dark) porch to shoot this for you.

1DsMkII at 800 ISO, 1/6 second, resting on the porch railing, 16-35f/2.8, wide open, at 35mm:

Let me know if you need anything else.

Thank you for your picture, but when the 1DsMKII raw image shrink down to this size, the picture will looks OK. Correct me if I am wrong.

[HKFEVER]

HK, your shot looks underexposed as well.. with the Canon CMOS sensros (and probably all digitals..) underexposed images dramtaically increase the noise level beyond "normal"

Your subject had a "whitish" background that may hvae messed up the exposure.. even it is not white.. thus underexposed.. bringing the entire image a stop or more towards the dark side.

Thank you for your suggestion, Understand the white background may screw up the AE mode, but the noise that i get doesn't look like regular noise.

But due to the file size I can't post it on the formus. Otherwise you can really see what I am talking about.

[HKFEVER]

Sorry for asking and posting so many time. Based on the same croping method that I do the first picture show look like this.

[DCB]

Thank you for your picture, but when the 1DsMKII raw image shrink down to this size, the picture will looks OK. Correct me if I am wrong.

That's why I gave you a 100% crop in the second image! :)

[HKFEVER]

That's why I gave you a 100% crop in the second image! :)

Understand the purpose for the second jpg, but the first jpg's size is not quite right.

My original picture has 4992 X 3328 pixels (52.83cm X 35.22cm, 240pixels/inch in PS)
My second picture has 472 X 472 pixels 72pixels/inch in PS)

Why your first JPG look that small?
How do you crop the second jpg?:oops: