sekilas tentang  fotografi
A PICTURE   TELLS  A THOUSAND WORDS Skull victims of Cambodia tragedy “Killing Fields”
istilah Shutter speed Diafragma (aperture)  ISO (ASA) Digital zoom Optical zoom Pixels Format digital
In photography,  shutter speed  is the common term for exposure time, the effective length of time a shutter is open; the total exposure is proportional to this exposure time, or duration of light reaching the film or image sensor. Shutter speed
Variasi shutter speed 1/1000s 1/500 s 1/250 s 1/125s 1/60s 1/30s 1/15s 1/8s 1/4s 1/2s 1s
Low shutter speed
Contoh penggunaan low shutter speed
24 mm 35 mm 100 mm 50  mm Contoh penggunaan lensa                                                                                                                                                        
Contoh penggunaan lensa 1200 mm                                       800 mm                                       400 mm                                       200 mm                                      
Diafragma (aperture) In optics, the f-number (sometimes called focal ratio, f-ratio, or relative aperture) of an optical system expresses the diameter of the entrance pupil in terms of the focal length of the lens; in simpler terms, the f-number is the focal length divided by the "effective" aperture diameter. It is a dimensionless number that is a quantitative measure of lens speed, an important concept in photography.
Diafragma (aperture) Diafragma atau aperture (atau sering disebut bukaan) berfungsi untuk mengatur jumlah volume cahaya yang masuk. Alat ini biasanya terdapat di belakang lensa. Terdiri dari 5-8 lempengan logam yang tersusun dan dapat membuka lebih lebar atau lebih sempit. Semakin kecil angka diafragma, maka bukaan yang dihasilkan akan semakin lebar sehingga cahaya yang masuk semakin banyak, dan sebaliknya.
 
 
 
 
 
 
 
 
 
 
pixels The more pixels used to represent an image, the closer the result can resemble the original. The number of pixels in an image is sometimes called the resolution, though resolution has a more specific definition.  Pixel counts can be expressed as a single number, as in a "three-megapixel" digital camera, which has a nominal three million pixels, or as a pair of numbers, as in a "640 by 480 display", which has 640 pixels from side to side and 480 from top to bottom (as in a VGA display), and therefore has a total number of 640 × 480 = 307,200 pixels or 0.3 megapixels.
ISO Film speed is the measure of a photographic film's sensitivity to light.  Film with lower sensitivity (lower ISO/ASA speed) requires a longer exposure and is thus called a slow film, while stock with higher sensitivity (higher ISO/ASA speed) can shoot the same scene with a shorter exposure and is called a fast film.
Zoom (optical/digital) Of the two types of zoom available, optical and digital, optical zoom is far more important.  Optical zoom uses the camcorder's lens to magnify part of the image without losing any image quality.  Digital zoom also enlarges images, but loses some of the image quality.
 
Format foto digital Joint Photographic Expert Group –JPEG (.jpeg/.jpg) Adalah format yang paling popular dan flexible. Kompatibel dengan semua program pengolahan gambar, sistem komputer (IBM PC ataupun Macintosh) dan web (internet). Namun format ini menggunakan metode “kompresi” (pemampatan) data untuk menyusutkan besar file-nya.
Format foto digital 2. RAW RAW, sebenarnya bukan merupakan singkatan, melainkan istilah bahasa inggris yang berarti “mentah”. RAW di sini berarti bahwa setiap data yang dihasilkan oleh sensor digital tidak dimampatkan (dikompresikan) seperti halnya format JPG.  Keunggulannya adalah jenis file ini merekam 100% data tanpa mengalami penurunan kualitas gambar.  Namun kelemahannya adalah besarnya file yang membengkak beberapa kali lipat.
Format foto digital 3. Bitmap Image (.bmp) Format ini adalah  format grafis windows, kelemahannya tidak bisa menyimpan alpha channel serta pertukaran platform, yang diperlukan  untuk membuat sebuah obyek gambar menjadi desktop wallpaper. 4. Graphics Interchange Format (.gif) Format ini adalah format standar internet atau electonic publishing, mampu menyimpan gambar dan animasi dua  dimensi.
Jenis kamera
 
   
accessories
accessories
 
 
Kesulitan dengan kamera digital Sistim kamera bekerja menurut keadaan cahaya, terutama jika kamera bekerja secara otomatis. Bagaimanapun canggihnya kamera kita, dia hanya bisa bekerja berdasarkan kondisi cahaya yang ada. Selain itu, sistim kerja dan peralatan fotografi memiliki banyak keterbatasan. Berbagai faktor inilah yang membuat kamera digital sering bekerja tidak optimal, bahkan sering memberikan hasil yang buruk & mengecewakan.
Kesulitan dengan kamera digital Ada 2 kesalahan yang seringkali terjadi : Saat kita memotret dalam cahaya minim, misal pementasan di panggung atau aktivitas dalam ruangan, kamera harus merekam gambar secara lambat, sehingga subyek yang bergerak akan terekam buram atau blur.  Selain itu gerakan atau getaran tangan saat bekerja akan membuat kamera bergerak/bergetar saat merekam gambar, akibatnya sama, gambar buram atau blur.
Kesulitan dengan kamera digital 2. Saat membidik subyek dengan area terang di belakangnya (back lighting), kerja sistim kamera terpengaruh oleh terang yang ada di belakang subyek, sehingga kamera merekam normal untuk daerah belakang, akibatnya subyek akan terekam gelap.
Contoh back light
Program khusus Portrait Landscape Night scene Sport Macro Sunset Fireworks Panorama Beach & Snow etc …..
Photo samples
 
 
 
 
Petra, Jordan
Stonehenge, Salisbury, Southern England
The Collosseum, Rome-Italy
Machu, Peru
Mosque, IRAN
Jesus, Brazil
AMONA, West Bank/Feb. 2006  A Jewish settler struggles with an Israeli security officer as authorities evacuate a West Bank settlement near the Palestinian town of Ramallah after Israel’s Supreme Court cleared the way for the demolition of nine homes at the site. This photo won first prize in The World Press Photo awards. (AP Photo/Oded Balilty)
 
News & Notes , March 2, 2006 · Farai Chideya talks to Dan Krauss, the director of The Death of Kevin Carter, an Oscar-nominated documentary about the life, work and suicide of a Pulitzer-prize winning South African photojournalist. Carter's winning photo shows a heart-breaking scene of a starving child collapsed on the ground, struggling to get to a food center during a famine in the Sudan in 1993. In the background, a vulture stalks the emaciated child. Carter was part of a group of four fearless photojournalists known as the "Bang Bang Club" who traveled throughout South Africa capturing the atrocities committed during apartheid. Haunted by the horrific images from Sudan, Carter committed suicide in 1994 soon after receiving the award. So be a good friend of this world. With your pictures, share the moments with others.
Good Luck ! Wishing You A Joyful and Prosperous New Year 2009 ! Thank You

Teknik Fotografi

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  • 2.
    A PICTURE TELLS A THOUSAND WORDS Skull victims of Cambodia tragedy “Killing Fields”
  • 3.
    istilah Shutter speedDiafragma (aperture) ISO (ASA) Digital zoom Optical zoom Pixels Format digital
  • 4.
    In photography, shutter speed is the common term for exposure time, the effective length of time a shutter is open; the total exposure is proportional to this exposure time, or duration of light reaching the film or image sensor. Shutter speed
  • 5.
    Variasi shutter speed1/1000s 1/500 s 1/250 s 1/125s 1/60s 1/30s 1/15s 1/8s 1/4s 1/2s 1s
  • 6.
  • 7.
    Contoh penggunaan lowshutter speed
  • 8.
    24 mm 35mm 100 mm 50 mm Contoh penggunaan lensa                                                                                                                                                        
  • 9.
    Contoh penggunaan lensa1200 mm                                       800 mm                                       400 mm                                       200 mm                                      
  • 10.
    Diafragma (aperture) Inoptics, the f-number (sometimes called focal ratio, f-ratio, or relative aperture) of an optical system expresses the diameter of the entrance pupil in terms of the focal length of the lens; in simpler terms, the f-number is the focal length divided by the "effective" aperture diameter. It is a dimensionless number that is a quantitative measure of lens speed, an important concept in photography.
  • 11.
    Diafragma (aperture) Diafragmaatau aperture (atau sering disebut bukaan) berfungsi untuk mengatur jumlah volume cahaya yang masuk. Alat ini biasanya terdapat di belakang lensa. Terdiri dari 5-8 lempengan logam yang tersusun dan dapat membuka lebih lebar atau lebih sempit. Semakin kecil angka diafragma, maka bukaan yang dihasilkan akan semakin lebar sehingga cahaya yang masuk semakin banyak, dan sebaliknya.
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    pixels The morepixels used to represent an image, the closer the result can resemble the original. The number of pixels in an image is sometimes called the resolution, though resolution has a more specific definition. Pixel counts can be expressed as a single number, as in a "three-megapixel" digital camera, which has a nominal three million pixels, or as a pair of numbers, as in a "640 by 480 display", which has 640 pixels from side to side and 480 from top to bottom (as in a VGA display), and therefore has a total number of 640 × 480 = 307,200 pixels or 0.3 megapixels.
  • 23.
    ISO Film speedis the measure of a photographic film's sensitivity to light. Film with lower sensitivity (lower ISO/ASA speed) requires a longer exposure and is thus called a slow film, while stock with higher sensitivity (higher ISO/ASA speed) can shoot the same scene with a shorter exposure and is called a fast film.
  • 24.
    Zoom (optical/digital) Ofthe two types of zoom available, optical and digital, optical zoom is far more important. Optical zoom uses the camcorder's lens to magnify part of the image without losing any image quality. Digital zoom also enlarges images, but loses some of the image quality.
  • 25.
  • 26.
    Format foto digitalJoint Photographic Expert Group –JPEG (.jpeg/.jpg) Adalah format yang paling popular dan flexible. Kompatibel dengan semua program pengolahan gambar, sistem komputer (IBM PC ataupun Macintosh) dan web (internet). Namun format ini menggunakan metode “kompresi” (pemampatan) data untuk menyusutkan besar file-nya.
  • 27.
    Format foto digital2. RAW RAW, sebenarnya bukan merupakan singkatan, melainkan istilah bahasa inggris yang berarti “mentah”. RAW di sini berarti bahwa setiap data yang dihasilkan oleh sensor digital tidak dimampatkan (dikompresikan) seperti halnya format JPG. Keunggulannya adalah jenis file ini merekam 100% data tanpa mengalami penurunan kualitas gambar. Namun kelemahannya adalah besarnya file yang membengkak beberapa kali lipat.
  • 28.
    Format foto digital3. Bitmap Image (.bmp) Format ini adalah format grafis windows, kelemahannya tidak bisa menyimpan alpha channel serta pertukaran platform, yang diperlukan untuk membuat sebuah obyek gambar menjadi desktop wallpaper. 4. Graphics Interchange Format (.gif) Format ini adalah format standar internet atau electonic publishing, mampu menyimpan gambar dan animasi dua dimensi.
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    Kesulitan dengan kameradigital Sistim kamera bekerja menurut keadaan cahaya, terutama jika kamera bekerja secara otomatis. Bagaimanapun canggihnya kamera kita, dia hanya bisa bekerja berdasarkan kondisi cahaya yang ada. Selain itu, sistim kerja dan peralatan fotografi memiliki banyak keterbatasan. Berbagai faktor inilah yang membuat kamera digital sering bekerja tidak optimal, bahkan sering memberikan hasil yang buruk & mengecewakan.
  • 37.
    Kesulitan dengan kameradigital Ada 2 kesalahan yang seringkali terjadi : Saat kita memotret dalam cahaya minim, misal pementasan di panggung atau aktivitas dalam ruangan, kamera harus merekam gambar secara lambat, sehingga subyek yang bergerak akan terekam buram atau blur. Selain itu gerakan atau getaran tangan saat bekerja akan membuat kamera bergerak/bergetar saat merekam gambar, akibatnya sama, gambar buram atau blur.
  • 38.
    Kesulitan dengan kameradigital 2. Saat membidik subyek dengan area terang di belakangnya (back lighting), kerja sistim kamera terpengaruh oleh terang yang ada di belakang subyek, sehingga kamera merekam normal untuk daerah belakang, akibatnya subyek akan terekam gelap.
  • 39.
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    Program khusus PortraitLandscape Night scene Sport Macro Sunset Fireworks Panorama Beach & Snow etc …..
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    AMONA, West Bank/Feb.2006 A Jewish settler struggles with an Israeli security officer as authorities evacuate a West Bank settlement near the Palestinian town of Ramallah after Israel’s Supreme Court cleared the way for the demolition of nine homes at the site. This photo won first prize in The World Press Photo awards. (AP Photo/Oded Balilty)
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    News & Notes, March 2, 2006 · Farai Chideya talks to Dan Krauss, the director of The Death of Kevin Carter, an Oscar-nominated documentary about the life, work and suicide of a Pulitzer-prize winning South African photojournalist. Carter's winning photo shows a heart-breaking scene of a starving child collapsed on the ground, struggling to get to a food center during a famine in the Sudan in 1993. In the background, a vulture stalks the emaciated child. Carter was part of a group of four fearless photojournalists known as the "Bang Bang Club" who traveled throughout South Africa capturing the atrocities committed during apartheid. Haunted by the horrific images from Sudan, Carter committed suicide in 1994 soon after receiving the award. So be a good friend of this world. With your pictures, share the moments with others.
  • 55.
    Good Luck !Wishing You A Joyful and Prosperous New Year 2009 ! Thank You