Noisy images - broken camera?
Noisy images - broken camera?
Author
Discussion

docevi1

Original Poster:

10,430 posts

270 months

Wednesday 10th August 2005
quotequote all
Hi,
my canon A70 has sudddenly started to take very noisy images (see [url]here|http://www.stefancarlton.net/temp/noisyImage1.jpg[/url] and [url]here|http://www.stefancarlton.net/temp/noisyImage2.jpg[/url] both 100% crops).

Any ideas what could be causing it? I've tried the obvious of making sure it's on the max resolution and quality but it's not working right anymore. The colour especially on the second one is way out.

I've emailed canon, but it'll take 2-3 days before they get back to me apparently :( It's also out of warranty with them (I've had it since 31/12/03) but is insured with D&G.

I'm gutted at the moment!

simpo two

90,860 posts

287 months

Wednesday 10th August 2005
quotequote all
docevi1 said:
but is insured with D&G.

Dolce & Gabbana?

350wedge

2,364 posts

295 months

Wednesday 10th August 2005
quotequote all
Does it have a mode to manually set the ISO value??? Maybe its been set to the Highest setting inadvertantly ???

docevi1

Original Poster:

10,430 posts

270 months

Wednesday 10th August 2005
quotequote all
simpo two said:
docevi1 said:
but is insured with D&G.
Dolce & Gabbana?
Domestic and General

350Wedge, I owe you a beer! I never fiddle with ISO levels, but it appears that has been the problem - putting it on full manual with ISO control has "solved" the problem. Looks the the Auto metering isn't working quite right. Sigh, that'll make life fun.

Thanks!

350wedge

2,364 posts

295 months

Wednesday 10th August 2005
quotequote all
Glad I can be of some service. Done similar things before myself as I'm forever changing ISO values on my SLR and just forgotten I'd set a higher value....

_dobbo_

14,619 posts

270 months

Wednesday 10th August 2005
quotequote all
Auto ISO is pretty dangerous on my camera (a D70) - it seems far too willing to flip to 800 or 1600 iso for my liking.

LongQ

13,864 posts

255 months

Wednesday 10th August 2005
quotequote all
docevi1 said:

simpo two said:

docevi1 said:
but is insured with D&G.

Dolce & Gabbana?

Domestic and General

350Wedge, I owe you a beer! I never fiddle with ISO levels, but it appears that has been the problem - putting it on full manual with ISO control has "solved" the problem. Looks the the Auto metering isn't working quite right. Sigh, that'll make life fun.

Thanks!


Have you tried a reset?

If a soft reset doesn't do much a hard reset might?

350wedge

2,364 posts

295 months

Wednesday 10th August 2005
quotequote all
Looking again at the photo's was wondering whether the camera in Auto has ramped up the ISO to max because they are being taken indoors with very little available light.... i.e. camera's looked at the dark areas and said to itself 'right it looks dark so i need to raise the ISO to get a fast shutter speed'

Have you tried going outside and taking a general shot on full auto and seeing if the high level of noise is still present ???

simpo two

90,860 posts

287 months

Wednesday 10th August 2005
quotequote all
_dobbo_ said:
Auto ISO is pretty dangerous on my camera (a D70) - it seems far too willing to flip to 800 or 1600 iso for my liking.

It's not random, it works to preset limits, increasing ISO if the shutter speed is about to fall below either 1/60 or 1/125 sec (see custom menu). I normally use it because I'd rather have a higher ISO than camera-shake.

Re the two original pix, one was noisy but one was stripey...

docevi1

Original Poster:

10,430 posts

270 months

Wednesday 10th August 2005
quotequote all
I had tried it outside and had the same affect, but I can't remember what settings I had it on then (might have been the auto-manual option). I'll continue to play and see what it does.