noise is way too much, this makes no sense, HELP!!!!!

[phatymagee83]

ok, so yesturday, i had iso at 200, and my canon digital rebel xt w/ canon 70-200 f/2.8L lens was takin pics with almost no noise (and this is indoors without a flash). today, i was takin pics outside, extremely sunny (yet cold), iso at 100, and there's so much noise i honestly wana drop my camera off the top of my house! theres as much noise now at iso 100 than there was about a week ago at iso 1600. it was fine last night, but this morning at about 10 when i took a pic of a hawk, it was terrible. i cant even edit the noise out with photoshop cs2 its that bad. i formated both my memory cards, and took pics of the hawk again, nothin. i reset all the camera's setting, and all the custom functions. woohoo, now there's even more noise. honstly, whats happening makes no sense at all. i took pics in .raw and .jpg to see if that made a difference, nope, it doesnt. please help

Additional Comment:

my guess is the lens however. when i put in the 18-55mm lens that comes with the camera, it takes the same, or even better pics. i just got the lens tho, and it was fine, so idk whats wrong.

Additional Comment:

im going to the store tonight to yell at the manager, ill let u all know how it goes

[Turtile]

Can you post a few pics w/ exif?

[superakuma]

Yea post up some pictures with exif. Yelling at the manager isn't going to solve anything.

The noise shouldn't be from the lens. If it is a poor quality lens, it just won't be sharp.

The canon xt is a fine camera and you shouldn't be able to see much noise at that ISO unless if you are shooting a 30 sec exposer at a blank wall and do a 500% crop.

[phatymagee83]

Originally Posted by superakuma

Yea post up some pictures with exif. Yelling at the manager isn't going to solve anything.

The noise shouldn't be from the lens. If it is a poor quality lens, it just won't be sharp.

The canon xt is a fine camera and you shouldn't be able to see much noise at that ISO unless if you are shooting a 30 sec exposer at a blank wall and do a 500% crop.

this deffinately isnt a poor quality lens, and i went to the manager. we talked about the noise issue. he explained it to me, i learned a few things. he took the lens back because there was something wrong, physically. ill post pictures, cause i need help with reducing the noise at this iso

http://i94.photobucket.com/albums/l9...many/test2.jpg
http://i94.photobucket.com/albums/l9...ailedhalk2.jpg

no program i have will give me the exif data. when i click on the picture info/exif data, it either gives me an error, ot everything is blank

[repoman]

If that's 1600, those examples look great.. you focused wrong on the first one though, looks like the focus point is on the yellow bush.

Unless it was averaged out when you reduced the size, the images are pretty noise free. The tree in the second one has lots of jpeg compression junk around the branches, use photoshop instead of ms paint

To see the EXIF, right click the image and hit properties then move over to advanced summary

[phatymagee83]

Originally Posted by repoman

If that's 1600, those examples look great..

To see the EXIF, right click the image and hit properties then move over to advanced summary

i no how to find the exif data, like. the window pops up, but theres no information in it, i get it for other pictures tho.....and no, thats not 1600, they're both 100. i have a second picture of the hawk that i took a lil later, like 10 minutes later. its just as bad

[Turtile]

You get the exif on other lenses but not this one?

It may not be mounting correctly which would be the cause of the bad focusing and metering.

Do you here click noise when you twist the lens on the mount? You should also try hold the lens instead of the camera when using a large heavy lens. The weight may be to much for the mount to handle.

[megaclocker]

Looks fine to me... Post iso400 or iso800 picture

I think you forgot a rule. Longer you focal lengh is, higher your shutter speed need to be.

If you have a 70-200mm you need to have at least an 1/320s shutter speed to have a tack sharp picture. (without a tripod)

Your picture just look blurred to me.

Here 2 pictures for a comparison (rebel xt also)
400iso with 70-200mm f2.8
http://img64.imageshack.us/img64/7263/img24862gm3.jpg

1600iso with 50mm f1.8
http://img64.imageshack.us/img64/1793/img23122me5.jpg

[phatymagee83]

its iso100, for the last time! and its not the lens i cant get exif data for, its just the recent pictures...and for the hawk picture, the shutter speed is over 1/1500, so thats fine. yes, i hear a click when i mount the lens....and i hold my right hand on the camera, how its supposed to, and my left hand is either on the turn-thingy to change the focal length, or on the turn-thingy to change the focusing. i no exactly how to do everything, im not stupid, which some of ur comments are, no offense or anything. i just need help with like, the settings on the camera or something, cause the noise is being stupid. should i try cleaning the sensor or something?

[repoman]

Originally Posted by phatymagee83

its iso100, for the last time! and its not the lens i cant get exif data for, its just the recent pictures...and for the hawk picture, the shutter speed is over 1/1500, so thats fine. yes, i hear a click when i mount the lens....and i hold my right hand on the camera, how its supposed to, and my left hand is either on the turn-thingy to change the focal length, or on the turn-thingy to change the focusing. i no exactly how to do everything, im not stupid, which some of ur comments are, no offense or anything. i just need help with like, the settings on the camera or something, cause the noise is being stupid. should i try cleaning the sensor or something?

People are trying to help you and you call them stupid, nice. You obviously don't know exactly how to do everything if you can't get it to work, so accept some help and don't be an ***.

[phatymagee83]

no, i appreciate the help, but i mean, its all like, too much comon sense. anywho, can we just continue please?

[repoman]

What exactly is there to continue with? The noise on your samples is nonexistant. Do you still have a problem with EXIF? Try another computer maybe?

[phatymagee83]

Originally Posted by repoman

What exactly is there to continue with? The noise on your samples is nonexistant. Do you still have a problem with EXIF? Try another computer maybe?

the noise is existant. i had to shrink the pictures, but the picture of the car, i actually printed that out on a 8.5 x 11 sheet of kodak photo paper. the noise is like, i wana shoot the camera, lol. the mananger told me that noise is due to temperature. so could something be heating up? i can try by turning the LCD off. but the noise is pretty existant. as for EXIF, the pictures i took in .raw, i cant see data for. the .raw files, i saved them as .tif through photoshop cs2.

[repoman]

It must have averaged out during compression.. show a full size through imageshack or something. You'll have to reduce quality through photoshop

Noise from heat is only a real factor during 30 second + exposures. It's emphasized when stuff gets underexposed, so make sure all your pictures are exposed correctly

[phatymagee83]

Originally Posted by repoman

It must have averaged out during compression.. show a full size through imageshack or something. You'll have to reduce quality through photoshop

Noise from heat is only a real factor during 30 second + exposures.

full size is too big, ive tried imageshack. and as to noise, he said always, and most people dont no it. he took pictures at 1/100 with my camera when i took it in, and showed me the noise, and how heat affects it and stuf. it also has to do with lighting, as in. if the backround is white (less noise) or black (more noise). and u said averaged out during compression. all of those picutres are completely uncompressed, and taking up a lot of my hd space, lol

[Turtile]

In that case, it makes most sense that one or more elements are shifted within the lens.

You should return it to the store for a replacement or send it to Canon to get serviced.

Can you post a RAW file here? I could try to improve the quality for you.

[phatymagee83]

Originally Posted by Turtile

In that case, it makes most sense that one or more elements are shifted within the lens.

You should return it to the store for a replacement or send it to Canon to get serviced.

Can you post a RAW file here? I could try to improve the quality for you.

the store is ordering me a new lens, they said ill get it by tuesday. also, u can see inside the lens, close to the iris, but on the inner lens, that there is a little piece of something. the person at the store thinks it could be part of the lining of the lens.

Additional Comment:

actually, i stil have the lens, so i can take a picture of the thing on the inner lens if anyone wanted to see it

[superakuma]

If you can't post the picture without shrinking it, how about you send the a copy of the original to me and/or someone else on the board to look at. To me the first picture looks like it is out of focus and the 2nd picture is underexposed. But other than that I see no noise.

email me at freeza9@hotmail.com

[phatymagee83]

Originally Posted by superakuma

If you can't post the picture without shrinking it, how about you send the a copy of the original to me and/or someone else on the board to look at. To me the first picture looks like it is out of focus and the 2nd picture is underexposed. But other than that I see no noise.

email me at freeza9@hotmail.com

thanx for the offer, i would take u up, exept the pics are stil to big. they are .tif files, and 144 MB, both of them. gmail ( phatalbert019283@gmail.com ) only lets u send like 10 MB

[repoman]

That's dumb, save them in JPG for 4MB, lower quality a little in photoshop to get it under 1.5MB easy for imageshack..