oil on lens

Camera lens indeed has sophisticated mechanical parts. As other mechanical devices, lubrication is an essential treatment. However it doesn't mean that a lens needs lubrication.

Here is a severe example of the impact of a drop of oil on the aperture. The aperture mechanism is using a very light force. Therefore a small inhibitor will affect its functionality. The aperture blade is so light and designed with such kind of matte surface, apparently to prevent any glare. Therefore the oil fill the matte texture of the blade, and the cohesive forces between blades increase, so they are harder to move. Finally the diafragm cannot be changed.

I wonder from where did the oil come from? Apparently it came from the melting grease. But still I'm unsure, it may also came from silly human action.

photo exhibition

Yesterday I saw a photo contest exhibition in Town center. Fascinating picture. The pictures were taken by photo journalist, and there was a Henri-Cartier-Bresson's quote,father of photojournalism.There were three pictures that I love; a woman shut out and pointing out to a policeman who beg for her apologize, a girl peeking on closed gate(it was a nice composition) and two lazy beggars. If you ask about the pictures, well a picture may be worth of a thousand words, but it consume a thousand times memory size ;^).
The most fascinating, and it was make me think deeply, braille letter describing each finalist picture. On the first time I saw it I said in my head,"what's the point?", but when I walk around and stuck on it, somehow it remind me how lucky I am, who still able to see the world clearly with my two eyes. Why weren't the blinds given a little bit of opportunity to "see" such a beautiful picture? Don't you agree with me?

Here is the "highly questioned" winner:
If you notice the empty space was "something", this picture was cooked. I didn't notice it when I saw it in town center, until I read a news about it. It was truly a flaw of a photo contest, moreover photojournalism contest.

Digital Single Lens Reflex

Here are some technical facts flavoured with [cynistic] opinion about digital SLR camera ownership:
1. Picture Size. Never overestimate the mega pixels size, it's value is the result of multiplication of width and length, therefore it grows quadratic. For example:
6.5mp=3152x2068pixels
8mp =3456x2304pixels
10mp = something less than 4000x(3/4)x that something pixels
conclusion: for a double size of picture you need quadruple mega pixels value, further more it means 20mp EOS-1Ds MarkIII is less than double size of 'cheap' EOS 300D. The word cheap is relative to EOS-1Ds MarkIII, if having EOS-1D MarkIII you may have 30 pieces of EOS 300D


2. Sensor size. This is the worst fact of a digital SLR. The sensor size is less than standar 35mm film camera. Here is an example of EOS system, xyD or xyzD series. Yes, not all series actually, one digit EOS series(xD) have 35mm sensor, but the price is too expensive for 35mm camera. If I had that much of money I'll choose Hasselblad's medium format one, and dream someday I can buy the digital back :D. Last month I saw a lady, bought a medium size film, yes a lady, I wonder how camera geek she is.
More over about this small sensor size is the difficulties of capturing architectural figures, you'll get more deviated towers unless you move hundreds meter backward.

3. Low light handling is simply voltage increments, therefore it is impossible to have a fine grain picture using a high ISO value. Using celluloid camera you can simply bought a more expensive film celluoid processed with particular fine grain chemicals processor.

Long live film celluloid camera!

Resensi Foto

Foto ini karya dari Henri Cartier-Bresson.

Hanya orang sok tahu saja yang berani membuat kritik untuk foto ini, misalnya saya.
(+)
Timing. bayangkan 0.0x detik saja telat kaki orang berlari ini akan jatuh ke air dan bayang2 tidak akan seindah ini.
Momen ini pun jika ditunggu juga bakal susah dapat timing-nya. Apabiila direkayasa harus menunggu berjam-jam sampai riak-riak airnya hilang sehingga bayangan dapat tergambar jelas, itupun harus memblokade area
(-)Rasanya komposisi ya.

photographer's creeds

Henri Cartier-Bresson, father of photo journalism

- He refused to edit his images after in the darkroom and insisted they be printed full frame - his belief was in composition within the camera.

- Never used flashbulbs - "Impolite...like coming to a concert with a pistol in your hand." was his response - available light was his thing.

- Hated publicity, believed the image was the key not the photographer.

"All I care about these days is painting—photography has never been more than a way into painting, a sort of instant drawing."


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