Thunderstorm pictures and hot pixels

[Andre]

So the other evening, the last at Mont Cru, nature finally regaled me with a beautiful thunderstorm. So I set myself up and shot lots of 30 sec exposures during an hour of awesome display. Many pixs were useless, between nothing captured and a complete white out, but some dozen seemed very nice like this:

But when I examined the pics more closely, I discovered a lot, maybe a dozen, hot pixels. I thought that this would be rather unacceptable for a camera like that. But after some reading like this maybe it was not that bad at all.

So I tried that hot pixel elimunator in that link, with this result:

The original crop on top shows three hot pixels, from left to right a blue, red, and white one. The white light on the left is a light indeed, no hot pixel. The bottom crop after applying the eliminator, only shows a little bit of the red one left

 

[Astronuc]

So the other evening, the last at Mont Cru, nature finally regaled me with a beautiful thunderstorm. So I set myself up and shot lots of 30 sec exposures during an hour of awesome display. Many pixs were useless, between nothing captured and a complete white out, but some dozen seemed very nice like this:

Stunning picture, Andre! Awesome display. Nature reminds us how small we are!

 

[Andre]

Absolutely Astronuc and thanks

Here are some of the best shots, notice that the wind created ghost images of the leaves in some of them.

 

[Andy Resnick]

spectacular pics!

 

[LudusRex]

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I would first like to commend you for your thorough examination of your thunderstorm pictures. It is always important to carefully analyze and scrutinize data in order to draw accurate conclusions.

In regards to the hot pixels, they are a common occurrence in digital photography and are caused by the sensor's sensitivity to heat. They typically appear as small, bright dots or specks on images.

While it may seem concerning to have hot pixels in your pictures, they are actually a normal and expected characteristic of digital cameras. In fact, most cameras have built-in technology to automatically map and eliminate hot pixels during image processing.

It is also worth noting that hot pixels are more likely to appear in longer exposures, such as the 30-second exposures you took during the thunderstorm. This is because the sensor has more time to heat up and produce these pixels.

In terms of the hot pixel eliminator you used, it is important to understand that it is not a perfect solution. It may reduce the appearance of hot pixels, but it can also affect the overall quality and sharpness of the image. It is always best to try and prevent hot pixels by using shorter exposures and keeping your camera's sensor cool.

Overall, having some hot pixels in your images is not a cause for concern and does not reflect the quality of your camera. It is simply a natural occurrence in digital photography.