HOW TO GET RID OF HOT PIXELS
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- čas přidán 20. 08. 2024
- I've done quite a bit of long exposure photography recently and I've been asked a few times about how to get rid of hot pixels on long exposure images. So in this 'one Wednesday' video I'm going to look at ways to avoid hot pixels in long exposure images and, if they appear, how to deal with them in editing.
I hope you'll enjoy it
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That was brilliant Ralph, thank you for sharing with us and i have an image i know has hot pixcels so i will go and play using your techniques
Glad you found it useful Jim. Hope you get a good result on your image. Thank you for watching and commenting
Interestingly, I have never seen hot pixels in my photography. It is mostly a risk in my night photography and occasionally I will catch one in my stacking software, Starry Landscape Stacker. However, I just complete processing an image that I lowered the shadows in significantly to illuminate the foreground and found quite a few hot pixels. This vlog was indeed timely, Thanks, Ralph.
I'm glad it came at a good time Gary. I generally only find them on exposures over 3 or 4 minutes (if then). Hope you get on well with the technique. Thank you for watching and commenting
Great overview Ralph. I prefer the last method as it gives me the best results.
Glad you liked it Thanos. Thank you for watching and commenting
Interesting video Ralph, never heard 'Hot Pixels', now I know. Never noticed before, must enlarge my next long exposure I do. Many thanks for passing on the information :)
Glad you found it interesting Shaun. You normally see them in the darker areas of the image. Thank you for watching and commenting
Lightroom takes care of it automatically when you load the RAW file. It kind of remaps your pic and recognizes any pixels out of order. Does not work with with jpg but I don't use that format.
Based on what I've seen, LR does a good job if you have a few obvious pixels to deal with. If you end up with a lot of them, or the more noticeable noise that often comes from lifting the shadows, then some work work can be needed. Thank you for watching and commenting
@@RalphGoldsmith I took some very challenging nights shots outside. Very dark shadows etc.. where the hot/stuck pixels really shine. I compared the LR pic with the original but all 25 pixels were solved perfectly by LR. Will do some more testing but untill now it works. Maybe Nikon service can do a sensor remap. It is a Nikon D3x by the way so depends if they will service this dinosaur.
Thanks Ralph, I’ve not heard of hot pixels before, if I get them I will have to experiment as I use ON1 Raw for processing.
Glad you found it interesting. I suspect, although I'm not sure, that ON1 has a dedicated hot pixel removal feature. I can't be sure because I've never used it. Thank you for watching and commenting
Good tips. I have tended to clone them out before now, but your method with the Dust & Scratches filter looks much quicker
Glad you found it interesting Andrew. It's certainly quicker, especially if you have quite a few. Thank you for watching and commenting
Very interesting video that mate , to be honest i dont think i have ever suffered with hot pixels or not so i have noticed but you show some good tips on dealing with them in post, never been a fan of the in camera option doubling the exposure time .
Glad you found it interesting Lee. I get them occasionally on exposure of 3 minutes or more. I suspect the warm climate here doesn't help much in keeping the sensor cool. I also never use the in camera LE NR although I used to on my old D7100 because that had awful hot pixels on anything over about a minute and a half. Thank you for watching and commenting
Thank you Ralph...thank you so much
You're welcome. Thank you for watching and commenting
Useful Information, Thanks.
Glad it was helpful. Thank you for watching and commenting
Thank you! This is great information. I have a question. Do you find more hot pixels on the full frame Nikon than your Canon crop sensor camera? Is it about the same or less?
I'm glad you found it interesting Patty. Good question... I think I notice them more on the full frame but they may just be that there is more detail in general on that one so imperfections like hot pixels are more apparent. Thank you for watching and commenting
Thanks for sharing !
Thank you for watching and commenting
So is this a permanent pixel issue , once this happens it’s always like that ? Or is it temporary, is it essentially a dead pixel?
I did the sensor clean function on my recently bought Nikon and it got rid of about 7 dots. 2 red and these white or almost clear looking .
I heard cleaning the sensor two times on a row counts as mapping so if I just cleaned the sensor once, would it just be a dirty sensor?
I got this camera used and I have a return window so idk what to think of this
If you are seeing a few hot pixels with long exposures (more than 60 seconds) this is pretty common and not something I would worry about. If you are seeing them on shorter exposures then it may be that you have a problem with some dead pixels on the sensor. Hope that helps. Thank you for watching and commenting
It’s on a new used camera I bought I had no lense on it and took no photos with it , it was me just looking at the viewfinder and lcd .
I did a sensor clean once . I did noticed it was on iso 51,000 .
So idk. I still wonder why a sensor clean would get rid of it , I think I read they can come back . I haven’t bought a lense for the camera yet
@@heythere6983 Hot pixels will normally show up on an actual images so you probably need to take something and get it on a computer screen to check it out
Yeah I’m in a weird spot since I have not yet gotten a lense . The fact thehbshowed up on the same viewfinder and lcd seemed like it was def the sensor .
@@heythere6983 Not sure how reliable the test is, maybe try and borrow a lens and try a shot?