2008年10月24日

谈谈摄影偷拍技巧12招 (豆瓣 摄影小组)

http://digibbs.tech.163.com/bbs/dc/102516531.html 
我不是教你诈,摄影是件被动的事情,在你黑魁魁的镜头面前,谁真能泰然自若?“决定性瞬间”绝不是摆出来或等来的,自然流露才最动人,所以有时不“偷”不行! 

  盗亦有道,偷拍更是非常道。玄机背后总有法门,托《天下无贼》的福,俺也来个乱弹偷拍十二式。1.隐蔽第一 

  “要想钓鱼,首先不能把鱼惊走”,于是布勒松把自己银白色的徕卡M3涂成黑色,于是大师们都用黑胶布把相机的铭牌贴掉,于是脏兮兮的“管道工”卡帕混进戒备森严的会场独家拍摄托洛茨基,于是托马斯用藏在裤脚的间谍相机连接快门线拍到电椅处死女犯人…… 

  摄影包是一定不能再挎了,选用黑色小巧的相机并巧妙伪装,长袖衣服将利于隐藏相机,机身上粘根耳机线,下手时戴上耳机佯作聆听状。如果是单反数码相机,按下快门时不妨来段响亮的同步干咳以掩人耳目。若是普通DC,更别忘了关闭快门声音。曝光前事先确认将闪光灯和自动对焦辅助灯关闭,否则必死无疑。 

  要学贼王黎叔,低调,一定要低调! 

  2.瞒天过海 

  一定要漫不经心,装作和旁人说话或呈懵懂菜鸟状不停把玩相机,分散对方注意,或声东击西预先将相机对往别处……总之让目标有八辈子都不会和你有关联的感觉,再伺机下手。要领在于双眼余光的妙用和假痴不颠的演技。 

  3.欲擒故纵 

  一旦被发现,故意让对方明确你已准备彻底放弃,转过身体假装拍摄其他东西,就在其放松一瞬也就是动作进行即将抵达高潮的一瞬,迅速回身下手!这招欲擒故纵往往能活色生香:某年全国人像摄影金奖作品,就是摄影师告诉模特拍完时模特放松一瞬拍得的。 

  4.守株待兔 

  像《这个杀手不太冷》里的狙击手一样,对目标可能出现的位置预调参数静待其现身,可对周围类似物体测光并预设好焦点,用AE-L/AF-L锁定。这招狗崽队的伎俩阴险却屡试不爽:杜瓦诺正是这样架着三脚架连续三天躲在反光玻璃橱窗后拍到了路人观看人体油画时妙不可言的表情。 

  5.非典型性取景 

  数码相机的可翻转LCD简直是为偷拍量身定做,你再不用和目标正面遭遇。平常人都会习惯地认为拍照都要将相机举到眼前,所以可翻转LCD帮了你大忙。旋转LCD并放长相机肩带绷紧以低角度拍摄,可保证持机平稳又不易暴露。借助可翻转LCD,单手拎持相机在腰以下位置偷拍,将大大减少被发现的几率,只是必须握稳相机先。另外,将LCD取景屏翻转180度,转身背向目标,装作在浏览从前拍好的照片,你可轻松拍到身后的目标。 

  另外,很多时候根本不容许或来不及取景,你别无选择只能盲拍,这就要求你有稍深的道行了。多拍几张,有助于提高成功率。对于DSLR,配上腕带将有助于盲拍时的握持稳定性。 

  6.浑水摸鱼 

  贼当然唯恐天下不乱。如果你天生胆小,那么去混乱场面偷拍吧。人多嘈杂的公共场所如风景区、演出、颁奖典礼、时装表演、联欢会,通常没人会在意你的存在。当然,你要装得煞有介事并镇定自若。 

  7.攻心为上 

  “绝大多数人都认为天下无贼”,所以不但要“偷”,还要理直气壮!赌大赢的就大,无数传世名作都是大师们偷拍来的——必须怀揣这样的“抱负”去“偷”。如果你是《荆轲刺秦王》里那个到了秦王宫就面热心跳战战兢兢的助理杀手,那么别自取其辱了,早点收山拍花花草草去吧。 

  直觉的反应最重要,快、准、狠,一个都不能少。万一被发现了,用你的诚意和执著去打动对方博取理解。不打不相识,只要不是出于猥亵的动机,难说你们还能成为朋友。 

  8.暗渡陈仓 

  目标太明显不易靠近时,你需要一个“帮凶”MM来配合,让她靠近目标,看似给MM拍照,实则伺机对目标下手……动作一定要快,否则人家会成人之美地迅速走开。这一招要求两人演技浑然天成。实在不行就连着“帮凶”一起拍进去,大不了过河拆桥回来用PS裁掉。 

  9.预先构图 

  对于DSLR,熟悉如28mm、35mm、50mm等各常用焦距段的视场范围和各自在变焦环上的对应位置,凭感觉迅速将变焦镜头推至所需位置瞬时完成构图,或借助变焦头的焦距刻度来预设焦距段,将大大提升你的偷拍效率。 

  偷拍必用长焦镜头的说法难免偏颇,偷拍是一种直觉的空间抽取,现场对你的刺激和事后别人看你照片的感受往往相去甚远,照顾事件发生的环境空间很重要,广角镜头具有更大的视场和景深,更能交待环境,所以大师们多用广角头来偷拍,大不了再靠近一点。 

  偷拍要以速度取胜,往往不可能瞬时做到构图精确,所以要尽量留出取景余量,宁空勿满。 

  10.预先测光 

  明确大致拍摄环境时可预先完成测光,参考周围物体或自己的手掌确定曝光值。条件允许时还可使用包围曝光。切记数码相机的曝光一般宁欠勿过。在不牺牲画质的前提下,尽量使用较高感光度以防止手震——“贼”下手时心慌气短端不稳相机是家常便饭。 

  11.暗偷不如明抢 

  最高的技巧是无技巧。偷偷摸摸其实欲盖弥彰,索性大义凛然迎上去正面猛拍甚至故意惹恼目标,明明是贼却要当自己是警察,简单说就是要有英雄般大义凛然的“范”!而且这般不管不顾往往能拍到更戏剧化的表情。 

  细看大师作品,你会发现很多照片是在对象觉察摄影师在场的情况下拍摄的,这才是偷拍的最高境界。 

  12.走为上 

  走到目标面前突然停下举机就拍,在对方发现但尚未确定被偷拍的犯懵瞬间绝尘而去……大师布列松的杀手锏,偷拍史上最屡试不爽同时也是最高明的一招。当然,这需要敏捷的身手还要浑身是胆。不过如果你长着一张金•凯利或周星驰式的脸,即使激怒了目标,难说也会被小放一马。 

  这十二式往往需要综合运用才能“得逞”。偷拍是摄影师必备的技巧之一,首先你得非常熟悉手上的相机,扎实的摄影基本功更不在话下。 

  盗亦有度。我们所说的偷拍是以不侵犯别人隐私为第一前提的,“偷”只是一种不得已的非常手段,它必须是自律和有限度的,任何情况下我们都应该绝对尊重自己的偷拍对象,冒犯个人隐私更是不可。记住,用长焦镜头偷拍别人隐私场所是违法的,可被处以5天以上行政拘留。 

  当然,也有人执著如斯,罗恩•盖尔拉因为偷拍马龙•白兰度被此君打掉下巴,戴上橄榄球头盔盖尔拉依然穷拍不舍…… 

  天下有贼,只是这偷拍的“贼”应是精通摄影技艺的快手,更是富有涵养和风度的非常君子,切勿误入歧途。

A star is born...on Pentax Photo Gallery.从 Pentax DSLRs 作者:Editor: Yvon Bourque


Hi Pentaxian friends,

I have several links to other blogs and forum sites listed herein, and consequently, other sites point to my blog as well. It is sort of a vote-of-confidence when you exchange links with other sites. I have some great links listed in my blog site that you should visit when you have time. It ranges from blog sites, forums, tutorials, galleries and other interesting photography related sites. I tend to gravitate around Pentax based sites, but not always.

One of those site is called Alunfoto, and it is administered by by Jostein Øksne, of Oslo, Norway. He uses Pentax equipment and from reading his blog, he has been using Pentax equipment for a long time. Some of his work was captured on film with a Pentax 645. There are certainly many good photographers around the world, many are famous, many are famous in the USA but not necessarily known elsewhere, and vice and versa. Although I do not know Jostein Øksne personally, I know that he visits my blog regularly and even drops me comments occasionally.

The reason I'm bringing your attention to him, is that he represents what I would like to produce as a photographer. His photos are so good that it makes me envious every time I look at them.

You probably all know how difficult it is to have a photo accepted in the Pentax Photo Gallery. Well, Jostein has 87 photos that were accepted in the Pentax Gallery. His talent is remarkable.
See his photos for yourself in the Pentax Gallery.

You can leave comments on his photography aptitudes here, as he is a subscriber to my blog. You can also log on to his blogsite and let him know that we appreciate his inspiring photographs. Tell him I sent you.

And to you Jostein, keep up your good photography work. You are an inspiration to me.

Yvon Bourque

2008年10月21日

The Many Colours of Fall 从 My Camera World 作者:noreply@blogger.com (nielsp)

I was visiting a good friend for a Thanksgiving weekend (Canadian), which in Ontario is just at the peak of the Fall colours. I brought my camera to get some photos of their grandkids playing around and maybe other images of the other guests celebrating the great friendships we have and of course, then sitting down to one of those great feasts that is spread end to end on large dinning room tables.



The photo has a special meaning for me and maybe that is why I have a particular fondness for this image. I do like the stark silhouettes set against the vibrant and brilliant sunlit fall foliage across the pond. There is just a suggestion of detail, the white stripes and the silver belt work and a small hint of skin tones that give them some depth. The 2 people seem to be gazing out over something. Also the red life jacket seems to add another element and its red colour being in the foreground harmonizes well with the fall colors in the background.



There was a third person in the original photo, but for my own reasons I only wanted these two.

It was a reasonably straightforward process to remove the 3rd person, except for the fact I took a slight detour down the path. Like driving a car, some routes are almost automatic. I at first decided I was going to mask out the person and using the same image below move it to another part of the reflection over the opening and using the transform tool to increase size to better fit the opening.

The 3rd person mask was easy, as it only needed to be slightly larger than the person. Objects like foliage with no clear structure blends well, as you can go over the mask edge to pick more or less from one side to suit the natural lines.

It was then I realized that by inverting the image I could use the original foliage and with a little blurring and sizing work make a perfect fit.


I marked 2 cross-hair style grids on the correct version and at a diagonal to each other to determine if there were any angle corrections needed in the inverted alignment.


The bottom part of the image shows the inverted image and how it was compressed vertically to fit the size of the reflected pond.

The inverted image was set to a blur of 5.9 to match the level of blur in the pond surface. Now the new blurred part matched the removed person cutout, but the colour tones were way too smooth.






When I examined another section of the pond I found that the noise was not just speckled but had short vertical patterns also.

The above pattern was created by creating a new layer and adding noise
Add Noise: 200%
Motion Blur: angle 90; distance 26.
Add Noise: 10%
Add Noise: 125% and fade to 8% as I wanted a little more of a building block texture

This layer was set to overlay and reduced to 4%, which seemed the best match the area beside the masked 3rd person.





The above image shows another angle overlooking the pond and a clue as to what the lifejacket was meant for.


Niels Henriksen


A Photographers Adage


The difficulty with color is to go beyond the fact that it's color – to have it be not just a colorful picture but really be a picture about something. It's difficult. So often color gets caught up in color, and it becomes merly decorative. Some photographers use [ it ] brilliantly to make visual statements combining color and content; otherwise it is empty. -. Mary Ellen Mark,, Mary Ellen Mark : 25 Years by Marianne Fulton , ISBN: 0821218387 , Page: 5

2008年10月19日

Editing Images 1

http://georgebarr.blogspot.com/2008/10/editing-images-1.html






In the sequence above you first see the unedited colour image straight from stitching. Next is the result of a black and white conversion with the default settings in the Photoshop BW conversion adjustment layer.

Next is the result of a major lightening of the yellow at the same time as doing a significant darkening of the blue. While this is somewhat akin to shooting the original with an orange filter, it's not quite the same, and of course is infinitely adjustable via the sliders - who'd go back to film?

The last image is the final edit of a few days ago that I previously showed you - in which the mountains have been brought out somewhat (though not enough according to Chuck and he might well be right), darkening of the lower right corner and of the left side, and not quite so much lightening of the yellow - I kinda like the even lighter yellow of the "filtered" adjustment shown above.

Note how wishy washy the bluffs on the right are after the filtered BW conversion. Much improved after a few extra masked curves darkened them more and more.

Just to see if Andy (note, I'd earlier mistakenly put Chuck down for the suggestion on the mountains) might be right, here's a crop of the mountain range before and after a quicky contrast adjustment via a masked curves layer.




Looks like Andy's right - significant improvement - I'd been afraid to push things this far but hey, I like it.

This brings up the point that images are always a work in progress - when requested to make a print after a few months, I often make further adjustments and sometimes go back to an earlier save so I can redo the further steps. I don't always prefer the new version, but sometimes I really do.