Photography

kini malah jadi mirip MacBook Pro Raksasa.. hehehe..

There are many reasons to capture images as RAW files rather than JPEG files.
However, it’s important to note that RAW image files require additional work to
achieve the color balance you’re looking for, whereas JPEG files are color-balanced by
the camera for you. JPEG files are also smaller than RAW image files, requiring less
storage space.
The advantages to shooting RAW files are:

• Increased bit depth allows for more color-correction “head room.” The JPEG format is
  limited to 8 bits per color channel. RAW images store 16 bits per channel, with
  12 to 14 bits per channel of color information. Although it may sound confusing, this
  means you can do significantly more color correction without degrading the image
  or introducing color noise. (For more information about bit depth, see “Learning
  About Bit Depth” on page 38.)
• After the RAW file is decoded, you work with the most accurate and basic data
  about an image.
• You control the white balance, color interpolation, and gamma correction aspects
  of the image during post-production rather than when shooting.
• The image file isn’t compressed, as JPEG files are, which means that no image data
  is lost.
• Most cameras are capable of and do shoot color outside the gamut range of JPEG
  (both Adobe RGB 1998 and sRGB), which means color clipping occurs when you
  shoot JPEG files. RAW files preserve the camera’s original image gamut, allowing
  Aperture to make image adjustments that take advantage of the full range of
  captured colors.
• RAW files give you control of noise reduction (luminance and color separation) and
  sharpening after capture. JPEG noise reduction and sharpening are permanently
  applied to the image according to the settings on the camera.

Belakangan ini saya sering menggunakan/meminjam kamera canon baik kamera Prosumer maupun DSLR, tapi yang bikin saya penasaran apa sih Av, Tv itu? klo M dan P tentu saja sudah jelas bahwa M dan P adalah Manual dan Program.

pada kamera Nikon hanya M, S, A, P dan sangat jelas sekali klo A dan S itu singkatan dari Aperture dan Shutter. dari beberapa fotografer, pengguna kamera Canon, majalah, internet hanya menjelaskan jika

Av = Aperture Priority dan Tv = Shutter Priority

dan itu tentu saja pengertiannya.. klo gitu kenapa harus ditulis Av dan Tv bukannya Ap dan Sp? atau sekalian aja S dan P saja. malah ada yang ngawur dengan mengatakan Av adalah Averture dan Tv tetap Shutter Priority (T nya apa donk?)

karena saking penasarannya saya pernah coba menerjemahkan sendiri seperti ini Av = Aperture Variable dan Tv = Time Variable dan tentu saja kalo itu salah

setelah baca-baca buku-buku lama tentang kamera akhirnya saya mendapatkan istilah sebenarnya. Tidak jauh meleset dengan dugaan saya sebelumnya sih.

Av = Aperture Value dan Tv = Time Value

kelihatannya memang tidak penting, tapi bukannya lebih baik jika kita lebih mengenal kamera kita sendiri. semoga bermanfaat…