Never had this before.... Strange blue light effect

macs

macs

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Rich
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Taken this shot tonight and gone to process it. I use Nikon ViewNX to look through shots and decide on the ones to process, I then open them in Photoshop Elements 11 and process the images. The image looked fine on the camera screen and on ViewNX but when I opened it in PSE I got this weird effect on the blue bokeh lights.

It can't be the screen because they look fine in ViewNX so it's got to be something to do with the way that PSE is processing it. It was there in Camera Raw and in PSE Editor. I've just looked at PSE Organiser and it's there too.

Anyone got any ideas what it is and how to fix it?

DSC_4198 by Richard McBrayne, on Flickr
 
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Indeed, the shot would be very cool without the blue dots!
I cannot help you since I do not use any of the given softwares,
 
Is PSE 32bit?

On a slightly different, yet interesting note, coloured LEDs used in Christmas lights and colour panel displays need to have different brightnesses for the red, green and blue LEDs to make them look all the same to our eyes. Blue needing more power and red needing least power. According to a boffin friend of mine.
 
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macs said:
The bokeh would be pretty good
Click to expand...
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Yes, the bokeh is cool but may I attract your attention to the fact
that the PoF is not clearly to spot?

Nevertheless,
would be a good shot for a christmas layout background.
 
Not sure of it's 32 bit or what but probably 32 bit. If that's the standard.

Could it be the colour thing rgb or adobe?
Not sure which it's set to and I've switched it off now.
 
I've seen a similar sort of thing before. I'm not 100% sure but it seems to happen where you're blowing the highlights on a very intense colour & the rest of the photo is exposed well. Which kind of makes sense (ish) in light of @ianp5a's comment above. I think the blue leds are just too bright for the rest of the scene

I see a similar sort of the on these blue lasers here

13982-1450127677-31eec80a88ea3cad7dabfd0f29b03162.jpg


an awful lot of that is blown out. And the blues appear very much at the hot end of the histogram

13983-1450127932-ea637b496685aaaac31e117b263d7b1d.jpg
 
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It's a gamut issue. The blue is out of gamut for the colourspace you're using. Open it in Nikon ViewNX, and reduce blue saturation before exporting it. Are you exporting as a JPEG? If so, it's the reduction to 8bit that's doing this. Also, Nikon View is probably set to view the raw files in a wide gamut colourspace like Adobe RGB or Pro Photo, and you're exporting into sRGB.

Either reduce blue saturation in Nikon View NX while still at the raw stage, or export it as a 16bit TIFF in Adobe RGB and reduce blues in Photoshop using the gamut check (Shift+Ctrl+Y). Nikon View NX probably has a gamut check itself, but I never use it, so no idea how you'd do that.
 
boyfalldown said:
I've seen a similar sort of thing before. I'm not 100% sure but it seems to happen where you're blowing the highlights on a very intense colour & the rest of the photo is exposed well. Which kind of makes sense (ish) in light of @ianp5a's comment above. I think the blue leds are just too bright for the rest of the scene

I see a similar sort of the on these blue lasers here

13982-1450127677-31eec80a88ea3cad7dabfd0f29b03162.jpg


an awful lot of that is blown out. And the blues appear very much at the hot end of the histogram

13983-1450127932-ea637b496685aaaac31e117b263d7b1d.jpg
Click to expand...

I can't check now because I'm not at the computer with PSE on but I do remember the lights being blown in my shot which I was expecting tbh, but didn't think it would have any knock on effect. There were some colours at the very hot end of the histogram likein your shot but I can't remember which they were right now. I'll have to check tonight when I can get to PSE.


Pookeyhead said:
It's a gamut issue. The blue is out of gamut for the colourspace you're using. Open it in Nikon ViewNX, and reduce blue saturation before exporting it. Are you exporting as a JPEG? If so, it's the reduction to 8bit that's doing this. Also, Nikon View is probably set to view the raw files in a wide gamut colourspace like Adobe RGB or Pro Photo, and you're exporting into sRGB.

Either reduce blue saturation in Nikon View NX while still at the raw stage, or export it as a 16bit TIFF in Adobe RGB and reduce blues in Photoshop using the gamut check (Shift+Ctrl+Y). Nikon View NX probably has a gamut check itself, but I never use it, so no idea how you'd do that.
Click to expand...

I'm not exporting from ViewNX, I'm only using it to view them and select which RAW images to process. I'll try again in PSE tonight and check the gamut (never done that before so will be good learning for me). I'll also try setting PSE to open in Adobe RGB and see if that makes any difference.
 
macs said:
I can't check now because I'm not at the computer with PSE on but I do remember the lights being blown in my shot which I was expecting tbh, but didn't think it would have any knock on effect. There were some colours at the very hot end of the histogram likein your shot but I can't remember which they were right now. I'll have to check tonight when I can get to PSE.




I'm not exporting from ViewNX, I'm only using it to view them and select which RAW images to process. I'll try again in PSE tonight and check the gamut (never done that before so will be good learning for me). I'll also try setting PSE to open in Adobe RGB and see if that makes any difference.
Click to expand...


I'm assuming in works in PSE... does in PS any way.
 
macs said:
Can't check gamut in PSE so I ended up processing in ViewNX and then exporting as JPEG and took it into PSE for some final tweaks. This is what I ended up with:

Christmas Girl by Richard McBrayne, on Flickr
Click to expand...




Yep.. because you're reducing the gamut in the colour in a colour managed environment instead of just forcing all the colours in the raw into an 8bit space without colour management.
 
Pookeyhead said:
It's a gamut issue. The blue is out of gamut for the colourspace you're using. Open it in Nikon ViewNX, and reduce blue saturation before exporting it. Are you exporting as a JPEG? If so, it's the reduction to 8bit that's doing this. Also, Nikon View is probably set to view the raw files in a wide gamut colourspace like Adobe RGB or Pro Photo, and you're exporting into sRGB.
Click to expand...
I've never seen colors pack up like that when correctly converted to another color space, even 8bit sRGB. It looks more like gamut warnings to me... Or is it a lack of proper color management/conversion?
 
sk66 said:
I've never seen colors pack up like that when correctly converted to another color space, even 8bit sRGB. It looks more like gamut warnings to me... Or is it a lack of proper color management/conversion?
Click to expand...


Both most likely.
 
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