All Forum Comments
Comment by aminstar posted on London Museam HDR at 10/09/2009 - 17:15
I haven't measured the tones in PS, I'm just saying what I've observed.
Would some 255 pixels be acceptable? I'm coming round to the view that they might be if the context is appropriate. Nothing is set in stone and all rules are up to be broken....
Having said that, I'm not suggesting that blown out areas would be OK, just that out of 14.6 million pixels I could overlook a handful here and there!
Thank you again for that lesson learnt.
Having said that, Mark, thank you also for the input. If you hadn't mentioned I wouldn't have noticed that the conversion from PSD to JPG is doing that. This is why I like to post into the forum so experienced members like you all can lead me the way and point to certain things.
So the issue again, is this normal when converting from PSD to JPG? Do I need to keep an eye on it and is it image dependant?? Up until now I would just finish editing and then just flatten the image and forget about it, assuming that its as it was in PSD. What's the general rule? What do you do?
Many thanks
Comment by aminstar posted on The moon at 10/09/2009 - 17:03
so John, on the big white feature lower-right, can you see tones throughout the area? with no continuous white?
If you pass the eye dropper over the area there are two distinct blobs of 255,255,255 white covering enough pixels to appear noticeably clipped. The next tone I see is a yellowish halo around the white.
I'm not at all bothered by these areas, but as Amin has asked...
So why is it doing this? When working with the PSD file this is what I was taking a lot of care in controlling and then when I was happy with the image I flattened it and didnt look back. And now you mentioned the moment I check it it lights up like a Xmas tree, and this wasnt there with the PSD file
Comment by aminstar posted on The moon at 10/09/2009 - 16:36
Hi Amin,
Funnily enough I was also taking pictures of the moon last night!!!
Sorry didn't intend to mislead you all. Although the moon phase yesterday would have looked more or less like this one
Comment by aminstar posted on The moon at 10/09/2009 - 16:26
Try straighforward shot of the london eye without HDR please and give me back the visual beauty of that lovely landmark before I cancel my next trip to the south of the river
Comment by aminstar posted on London Eye HDR at 10/09/2009 - 16:15
Hmmm, that's an odd one then. I have fiddled with my monitor in case it was too bright. but the crater bottom right still has no tones in it.
How does the PSD file look? Maybe the JPEG is throwing away the last few levels of highlight.
On an artistic level it looks blinkin' lovely and would print really well.
What I tried to do with this one was to limit all the settings to keep the highlights becoming overblown. Inclusive sharpness. With ever setting I was manipulating I kept coming to the levels to make sure it wasn't blowing off because it was too easy to just overdo it.
Interesting then if you open the final jp in your editor if the levels would show clippings. Did you try it?
Comment by aminstar posted on The moon at 10/09/2009 - 16:11
One trick in PhotoShop - Levels, is to hold down the alt key when moving the sliders, this will reveal any clipping as you move the slider.
That's why I wanted to know more about this as I had used this method then why did the blown ups still appear? Is there something else that I need to take into account while doing this to avoid highlights blowing up?
Comment by aminstar posted on The moon at 10/09/2009 - 15:58
If they're blown, they're blown, and there's nothing you can do to get back the detail that's been lost.
The original RAW file I shot doesn't have blown highlights. If there is any then I must have overdone with levels, hence me mentioning it
Thanks
Comment by aminstar posted on The moon at 10/09/2009 - 15:52
That's a corker Amin!
Almost perfect I would say.
Maybe the highlights are a little blown.
Is it only me or I am missing something? I do have a calibrated monitor too with the spyder 3
thanks
Comment by aminstar posted on The moon at 10/09/2009 - 15:25

