Dead pixel on used D300

ngminh8895

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Hi everyone,

This is my first post here. I am about to buy an used D300. I asked the owner to take a numerous shots before I bought it. Here are the result:

Should I buy it? Thanks

ISO 3200, 30s

ISO 3200, 30s



ISO 1600, 15s

ISO 1600, 15s



ISO 3200, 1/5s

ISO 3200, 1/5s
 

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Solution
This is absolute normal for such a high iso and time exposure for every camera. Even a Full frame camera in 3200 asa - 15 second exposure produce noise like that. This is NOT dead pixels just noise, and if you adjust levels and special auto level this going to lock more intense. No problem at all. 12.000 click for D300 is like new.
I agree. To me it looks like hot pixels, not dead pixels.

Hot pixels are produced by having the sensor on for longer than a few seconds. People doing astro photography have to have the long exposure noise reduction switched on to overcome this.
Hi everyone,

This is my first post here. I am about to buy an used D300. I asked the owner to take a numerous shots before I bought it. Here are the result:

Should I buy it? Thanks
These are with lens cap on? The spots you are seeing when zoomed in will not show on a regular picture.

Unless you are an astronomer, of course, but even then :-)


JC
Some cameras, some lenses, some computers
 
Hi everyone,

This is my first post here. I am about to buy an used D300. I asked the owner to take a numerous shots before I bought it. Here are the result:

Should I buy it? Thanks
These are with lens cap on? The spots you are seeing when zoomed in will not show on a regular picture.

Unless you are an astronomer, of course, but even then :-)

JC
Some cameras, some lenses, some computers
Yep, these are with lens cap on. I'm a bit worried, since my 10 years old D80 with 50k clicks produces much fewer dead pixels, and much harder to see
 
Hi everyone,

This is my first post here. I am about to buy an used D300. I asked the owner to take a numerous shots before I bought it. Here are the result:

Should I buy it? Thanks
These are with lens cap on? The spots you are seeing when zoomed in will not show on a regular picture.

Unless you are an astronomer, of course, but even then :-)

JC
Some cameras, some lenses, some computers
Yep, these are with lens cap on. I'm a bit worried, since my 10 years old D80 with 50k clicks produces much fewer dead pixels, and much harder to see
But do you see the dead pixels in normal situations, i.e. within an actual image? And how many clicks does that D300 have on the counter?


JC
Some cameras, some lenses, some computers
 
Hi everyone,

This is my first post here. I am about to buy an used D300. I asked the owner to take a numerous shots before I bought it. Here are the result:

Should I buy it? Thanks
These are with lens cap on? The spots you are seeing when zoomed in will not show on a regular picture.

Unless you are an astronomer, of course, but even then :-)

JC
Some cameras, some lenses, some computers
Yep, these are with lens cap on. I'm a bit worried, since my 10 years old D80 with 50k clicks produces much fewer dead pixels, and much harder to see
But do you see the dead pixels in normal situations, i.e. within an actual image? And how many clicks does that D300 have on the counter?

JC
Some cameras, some lenses, some computers
It has 12400 click. In normal situation, it is not that terible, but at long exposure, those dots tend to appear a lot more
 
Last edited:
Hi everyone,

This is my first post here. I am about to buy an used D300. I asked the owner to take a numerous shots before I bought it. Here are the result:

Should I buy it? Thanks
These are with lens cap on? The spots you are seeing when zoomed in will not show on a regular picture.

Unless you are an astronomer, of course, but even then :-)

JC
Some cameras, some lenses, some computers
Yep, these are with lens cap on. I'm a bit worried, since my 10 years old D80 with 50k clicks produces much fewer dead pixels, and much harder to see
But do you see the dead pixels in normal situations, i.e. within an actual image? And how many clicks does that D300 have on the counter?

JC
Some cameras, some lenses, some computers
It has 12400 click. In normal situation, it is not that terible, but at long exposure, those dots tend to appear a lot more
You have not said anything about the type of pictures you take. If those pixels visible at long exposures really bother you, don't get it.

What is the asking price and how does that compare with a similar body from B&H for instance? With an online store you may get some sort of trial period and warranty.


JC
Some cameras, some lenses, some computers
 
Hi everyone,

This is my first post here. I am about to buy an used D300. I asked the owner to take a numerous shots before I bought it. Here are the result:

Should I buy it? Thanks
These are with lens cap on? The spots you are seeing when zoomed in will not show on a regular picture.

Unless you are an astronomer, of course, but even then :-)

JC
Some cameras, some lenses, some computers
Yep, these are with lens cap on. I'm a bit worried, since my 10 years old D80 with 50k clicks produces much fewer dead pixels, and much harder to see
But do you see the dead pixels in normal situations, i.e. within an actual image? And how many clicks does that D300 have on the counter?

JC
Some cameras, some lenses, some computers
It has 12400 click. In normal situation, it is not that terible, but at long exposure, those dots tend to appear a lot more
You have not said anything about the type of pictures you take. If those pixels visible at long exposures really bother you, don't get it.

What is the asking price and how does that compare with a similar body from B&H for instance? With an online store you may get some sort of trial period and warranty.

JC
Some cameras, some lenses, some computers
I found it on ebay, so I couldn't try it myself (but at least the seller helps me a lot!). I mostly take landscape photos, sometime in daylight, sometime at night, sometime with long exposure, but always at ISO100 (btw, never do astronomy photos :) ). I am not sure, if shooting at raw will help. He ask for around 200£, the condition of the camera looks pretty good, so that makes me wonder why it can produce enormous amount of dead pixel at long exposure. He claims that he the only owner of it and takes a good care of it. He also wasn't aware of the issue until I asked
 
Last edited:
ngminh8895 said:
Hi everyone,

This is my first post here. I am about to buy an used D300. I asked the owner to take a numerous shots before I bought it. Here are the result:

Should I buy it? Thanks


ISO 3200, 30s


This is from my D300 with about 65000 clicks, also ISO 3200 and 30" with lenscap, not sure why the difference:





Philip
 
Hi everyone,

This is my first post here. I am about to buy an used D300. I asked the owner to take a numerous shots before I bought it. Here are the result:

Should I buy it? Thanks

ISO 3200, 30s

ISO 3200, 30s
This is from my D300 with about 65000 clicks, also ISO 3200 and 30" with lenscap, not sure why the difference:



Philip
Damn...that looks soooooo clean...
 
This is absolute normal for such a high iso and time exposure for every camera. Even a Full frame camera in 3200 asa - 15 second exposure produce noise like that. This is NOT dead pixels just noise, and if you adjust levels and special auto level this going to lock more intense. No problem at all. 12.000 click for D300 is like new.
 
Last edited:
This is absolute normal for such a high iso and time exposure for every camera. Even a Full frame camera in 3200 asa - 15 second exposure produce noise like that. This is NOT dead pixels just noise, and if you adjust levels and special auto level this going to lock more intense. No problem at all. 12.000 click for D300 is like new.
I agree. To me it looks like hot pixels, not dead pixels.

Hot pixels are produced by having the sensor on for longer than a few seconds. People doing astro photography have to have the long exposure noise reduction switched on to overcome this.
 
Solution
This is absolute normal for such a high iso and time exposure for every camera. Even a Full frame camera in 3200 asa - 15 second exposure produce noise like that. This is NOT dead pixels just noise, and if you adjust levels and special auto level this going to lock more intense. No problem at all. 12.000 click for D300 is like new.
I agree. To me it looks like hot pixels, not dead pixels.

Hot pixels are produced by having the sensor on for longer than a few seconds. People doing astro photography have to have the long exposure noise reduction switched on to overcome this.
Correct, it's probably turned on on my D300.
 

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