- Messages
- 538
- Name
- Anton
- Edit My Images
- Yes
Hello, (I'm sorry if this in the wrong section, I couldn't find a help section)
I joined this forum a few months ago to ask on what camera to buy, and I've only recently started to pick it up properly and experiment with pictures/photography. I'm a beginner but I catch on quite fast and I'm aware I'm learning.
This week I started taking a lot of BULB shots at night since I just got a remote trigger and I started to adjust the aperture. I had taken a fair few photos with the shutter open for around 5 minutes with a high aperture (I think F35?) in BULB mode on ISO 100 when I noticed my first problems. White pixels would be scattered in different images and it only happened a couple of times, so I left it down to a bad shoot, or possibly lens flare.
Since then I've done the test everyone appears to recommend for this antagonist, taking a long exposure shot of around 10 seconds with the lens cap on with JPEG + RAW format and then doing a manual clean on the sensor for about 30 seconds, then taking the image again with the lens cap on and compare the results. This only heightened my awareness of how serious the problem is; (here's a full resolution picture from that test):
http://www3.picturepush.com/photo/a/1327071/img/1327071.jpg
As you can see there are glaring white pixels and if you zoom in you'll find red and blue ones, too. I can also sometimes see a very bright white pixel that is dead centre, but I can't seem to find it in that uploaded picture. I thought dead/stuck pixels like red/blue/green were only to be found in LCD screens?
For me, that kind of quality is totally unacceptable and if I don't find a remedy soon I'm going to be demanding a repair. I bought the camera from eBay as the original owner sold it for being "too high tech" for his standards and it came with the receipt and guarantee. It has gaurantee until March, so I have time to fix this if worst comes to worst.
My question is, how the hell can an image become that bad? I was taking shots of passing cars and street lamps so I thought maybe the light could have damaged the sensor, but since people have done these shots for 30minutes at times then I personally doubt that could be it. It seems to have only started to occur since I started toying with the aperture in BULB mode? Now it appears in long exposure shots over 5 seconds... which renders practically all the photos I imagine I want to take completely useless and has put me off taking pictures dramatically.
What exactly can I do to remedy this? Since I've already tried the manual sensor clean/lens cap shot and I've also tried cleaning the lenses/mirrors (it happens with my other lens, too), I don't know what else there is to try. Some people have even said "accept it" to this problem since 'dead pixels' are common in older cameras, but for me if I can't cure this then I'll be looking to get rid of it as much as I hate to say it. This is a very recent problem, couple of days at most. Can it be fixed by myself, or should I take it in for a repair or possibly swap the body? I don't know where I stand on these things, and I hate to jump to conclusions, but this is a very disheartening problem.
I joined this forum a few months ago to ask on what camera to buy, and I've only recently started to pick it up properly and experiment with pictures/photography. I'm a beginner but I catch on quite fast and I'm aware I'm learning.
This week I started taking a lot of BULB shots at night since I just got a remote trigger and I started to adjust the aperture. I had taken a fair few photos with the shutter open for around 5 minutes with a high aperture (I think F35?) in BULB mode on ISO 100 when I noticed my first problems. White pixels would be scattered in different images and it only happened a couple of times, so I left it down to a bad shoot, or possibly lens flare.
Since then I've done the test everyone appears to recommend for this antagonist, taking a long exposure shot of around 10 seconds with the lens cap on with JPEG + RAW format and then doing a manual clean on the sensor for about 30 seconds, then taking the image again with the lens cap on and compare the results. This only heightened my awareness of how serious the problem is; (here's a full resolution picture from that test):
http://www3.picturepush.com/photo/a/1327071/img/1327071.jpg
As you can see there are glaring white pixels and if you zoom in you'll find red and blue ones, too. I can also sometimes see a very bright white pixel that is dead centre, but I can't seem to find it in that uploaded picture. I thought dead/stuck pixels like red/blue/green were only to be found in LCD screens?
For me, that kind of quality is totally unacceptable and if I don't find a remedy soon I'm going to be demanding a repair. I bought the camera from eBay as the original owner sold it for being "too high tech" for his standards and it came with the receipt and guarantee. It has gaurantee until March, so I have time to fix this if worst comes to worst.
My question is, how the hell can an image become that bad? I was taking shots of passing cars and street lamps so I thought maybe the light could have damaged the sensor, but since people have done these shots for 30minutes at times then I personally doubt that could be it. It seems to have only started to occur since I started toying with the aperture in BULB mode? Now it appears in long exposure shots over 5 seconds... which renders practically all the photos I imagine I want to take completely useless and has put me off taking pictures dramatically.
What exactly can I do to remedy this? Since I've already tried the manual sensor clean/lens cap shot and I've also tried cleaning the lenses/mirrors (it happens with my other lens, too), I don't know what else there is to try. Some people have even said "accept it" to this problem since 'dead pixels' are common in older cameras, but for me if I can't cure this then I'll be looking to get rid of it as much as I hate to say it. This is a very recent problem, couple of days at most. Can it be fixed by myself, or should I take it in for a repair or possibly swap the body? I don't know where I stand on these things, and I hate to jump to conclusions, but this is a very disheartening problem.
It's easy enough to clone out should they be noticable!