How to post process stars, night skies etc. - 未名空间MITBBS历史存档

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How to post process stars, night skies etc.

How to post process stars, night skies etc.# PhotoGear - 摄影器材

o*s2014-01-27 08:01

1 楼

Not stacking star trails, but just single exposures of the night sky.
How to post process to reduce noise, amplify signal, color correction?
seems very different than day time photography.

b*g2014-01-27 08:01

2 楼

reduce noise在lr里就能完成了吧.lr4,5的noise reduction已经非常强了.星空我拍得
不多,经验也少.但从阅别人片以及拍夜景的感受总结下来就是星空照最重要的是调
white balance.不调wb的星空照往往是发黄的.wb朝冷色调(蓝,绿)调,如果有前景的话,
前景可
以保留暖色.
我以前看过一个很给力的delicate arch星空后期教程,来找下.

b*g2014-01-27 08:01

3 楼

竟然找到了
http://www.youtube.com/watch?v=i22duUtI5Iw

o*s2014-01-27 08:01

4 楼

thanks bangbing. Mine was taken under bright moon light. The stars are all
washed out. The contrast is lacking and the light on the mountains are harsh
...I really want to rescue the shot, but the noise is horrible.
any idea how to proceed? I have about 4-5 shots, similar.

话,

【在 b******g 的大作中提到】

: reduce noise在lr里就能完成了吧.lr4,5的noise reduction已经非常强了.星空我拍得
: 不多,经验也少.但从阅别人片以及拍夜景的感受总结下来就是星空照最重要的是调
: white balance.不调wb的星空照往往是发黄的.wb朝冷色调(蓝,绿)调,如果有前景的话,
: 前景可
: 以保留暖色.
: 我以前看过一个很给力的delicate arch星空后期教程,来找下.

b*g2014-01-27 08:01

5 楼

有bright moon light的时候应该是很不适合拍星空的吧?
这个补救有难度啊,你可以试下用LM的light系列mask来提亮星星,用dark系列压暗天,通
常拉暗是会减少噪点的.不过如果wash out很厉害,星星和moon light完全混了,那就比
较难救的.

harsh

【在 o**s 的大作中提到】

: thanks bangbing. Mine was taken under bright moon light. The stars are all
: washed out. The contrast is lacking and the light on the mountains are harsh
: ...I really want to rescue the shot, but the noise is horrible.
: any idea how to proceed? I have about 4-5 shots, similar.
:
: 话,

b*g2014-01-27 08:01

6 楼

看了照片我觉得噪点可以接受,这个效果不差啊,月亮大的时候一般也只能这样了吧.

o*s2014-01-27 08:01

7 楼

I guess when the light is not there it is not there....
the exposure is 30 seconds (which i am pretty sure the stars moved) and now
i suspect my tripod also moved. the mountains are not sharp either. I used
400 and 800 iso. the lens max is f4.

【在 b******g 的大作中提到】

: 有bright moon light的时候应该是很不适合拍星空的吧?
: 这个补救有难度啊,你可以试下用LM的light系列mask来提亮星星,用dark系列压暗天,通
: 常拉暗是会减少噪点的.不过如果wash out很厉害,星星和moon light完全混了,那就比
: 较难救的.
:
: harsh

o*s2014-01-27 08:01

8 楼

How do they get these:
I know a few are twilight. Is it similar to moon light?
http://www.flickr.com/photos/liquidmoonlightcom/10356207196/
http://www.flickr.com/photos/mrbarbosa2000/10920106746/lightbox
http://www.flickr.com/photos/mrbarbosa2000/10664680496/lightbox
http://www.flickr.com/photos/liquidmoonlightcom/10789821136/lig

b*g2014-01-27 08:01

9 楼

这里面有几张可能是两张合的.一张拍星空保证星星不动,一张拍前景.
你看第二张有挺强的moon light星星也只能这样了,第三张的星空就好很多.
第一张我怎么觉得是两个时间拍的合成的-_-!

【在 o**s 的大作中提到】

: How do they get these:
: I know a few are twilight. Is it similar to moon light?
: http://www.flickr.com/photos/liquidmoonlightcom/10356207196/
: http://www.flickr.com/photos/mrbarbosa2000/10920106746/lightbox
: http://www.flickr.com/photos/mrbarbosa2000/10664680496/lightbox
: http://www.flickr.com/photos/liquidmoonlightcom/10789821136/lig

o*s2014-01-27 08:01

10 楼

okay. I give another try tonight, or give up.
btw, the problem with TK 1000 sharpen is very Yu4 men4 when viewed on large
screen on desktop. Always want to enlarge to see detail.

b*g2014-01-27 08:01

11 楼

那你就选个大点的尺寸,比如1600,2000

large

【在 o**s 的大作中提到】

: okay. I give another try tonight, or give up.
: btw, the problem with TK 1000 sharpen is very Yu4 men4 when viewed on large
: screen on desktop. Always want to enlarge to see detail.