The World Is Yours

블로그 이전했습니다.

2009-03-18T12:06:26Z

사진을 좀 더 크게 올리고 싶다는 생각에 블로그를 옮겼습니다.

http://chisul.egloos.com/

즐겨찾기에 살포시 추가해주세여 ㅋ

Depth of field

2009-02-21T03:42:54Z

In optics, particularly as it relates to film and photography, the depth of field (DOF) is the portion of a scene that appears sharp in the image. Although a lens can precisely focus at only one distance, the decrease in sharpness is gradual on either side of the focused distance, so that within the DOF, the unsharpness is imperceptible under normal viewing conditions.For some images, such as landscapes, a large DOF may be appropriate, while for others, such as portraits, a small DOF may be more effective.

The DOF is determined by the subject distance (that is, the distance to the plane that is perfectly in focus), the lens focal length, and the lens f-number (relative aperture). Except at close-up distances, DOF is approximately determined by the subject magnification and the lens f-number. For a given f-number, increasing the magnification, either by moving closer to the subject or using a lens of greater focal length, decreases the DOF; decreasing magnification increases DOF. For a given subject magnification, increasing the f-number (decreasing the aperture diameter) increases the DOF; decreasing f-number decreases DOF.

When focus is set to the hyperfocal distance, the DOF extends from half the hyperfocal distance to infinity, and is the largest DOF possible for a given f-number.

The advent of digital technology in photography has provided additional means of controlling the extent of image sharpness; some methods allow DOF that would be impossible with traditional techniques, and some allow the DOF to be determined after the image is made.

tag : depth of field, DOF

Depth of Field

2009-02-18T22:32:14Z

What is depth of field?

You'll notice in some photos that objects up close are in focus, but everything in the distance is blurry. This is a classic technique known as adjusting depth of field. It's the perfect trick for beautiful portraits and close-ups of all kinds.

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How does depth of field work?

The areas in blue show what will be in focus based on different aperture settings.

The size of the opening in your camera's lens, known as the aperture, determines what stays in focus and what is out of focus in your photos.

The space between the nearest and farthest point of focus is called the depth of field. In other words, your depth of field is the portion of your photo that is sharp and in focus.

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What are f-numbers?

Aperture is measured in terms of f-numbers (the "f" stands for focal ratio). The aperture grows wider as the f-number gets lower.

These different aperture sizes are called f-numbers. Aperture size actually grows in diameter the lower the f-number. For example, f2.8 is a very big opening, whereas f16 is a very small opening.

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How does aperture affect depth of field?

A small aperture (high f-number) leaves everything in focus.

The smaller the aperture, the greater your depth of field will be. In other words, objects near and far will be in focus.

The opposite is also true. The bigger the aperture size, the more restricted your depth of field becomes. Only objects close to you will be in focus.

A wide aperture only focuses on close objects.

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When to use landscape mode

In landscape mode, objects near and far are in focus.

Almost all digital cameras are built with two standard default depth of field settings—landscape and portrait. In landscape mode, the goal is to keep far away objects in focus, such as mountains or cityscapes. The aperture for landscape is set to a very small opening to bring as much of the scene into focus as possible.

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When to use portrait mode

In portrait mode, only objects close to the camera will be in focus.

In portrait mode, the goal is to keep closer objects within several feet in focus, while leaving background details out of focus. In this case, the aperture is automatically opened larger.

If your subject is less than 20 inches or so away, use your camera's macro shooting mode. This mode allows you to focus even when you're extremely close to your subject. Check your user's manual to make sure your camera has this feature.

From:http://www.hp.com/united-states/consumer/digital_photography/take_better_photos/tips/depth.html#1

tag : depth of field

나의 Electronica

2009-02-15T21:39:06Z

처음으로 접하게 된 electronica는, 롤러코스터였다. 특이한 비트와 매력적인 여자가수의 목소리. 왠지 모르게 끌렸다.

두번째는 클래지콰이.

신나는 비트와 신선한 멜로디 그리고 JAZZY 한 분위기. 모 웬만한 사람들 거의다 아는 그룹이기 때문에 더이상 설명이 필요 없을꺼 같다.

세번쨰 가수는 캐스커(casker). 아는 형이 듣는걸 따라 듣다가, 어느샌가 또 빠지게 되었다.

캐스커 노래는, 들으면 들을수록 빠지는 기분. 그닥 대중성을 추구하는 그룹이 아닌관계로 아직 많이 알려져진거 같진 않다. 물론, 매니아들 사이에선 굉장히 유명한 그룹이다.

약간 어두침침하고 암울(?)한 분위기를 띄고 있는 곡들이 많기 때문에, 싫어하는 사람들도 은근 있는거 같다.

하지만 한번 빠져들면 헤어나올수 없나는거. 여자 vocal 님 목소리가 정말 대박이다.

네번째 가수는 허밍얼반스테레도(humming urban stereo)

여자분 목소리가 참 귀엽다 ㅋ 이 그룹도 약간 하드코어 일렉. 음과 비트가 굉장히 일렉트릭 하다(기계적인 음이 정말 많다?). 매니아분들은 들으면 미친다고 하는데(너무 좋아서;) 난 아직 그 정도는 아닌거 같다. 굉장히 특이한 곡들이 많긴 하다.

밝고 발랄상쾌한 일렉을 즐기는 분들에게는

House Rulz (초강력 추천)<------발견한지 몇주 안됬는데, 정말 최고다. 웬만한 일본 그룹 못지 않다(더 좋은거 같기도 하다). 한국 그룹.

Daish Dance<-----------------일본 라운지 음악인데 꽤 들을만 하다.

Free Tempo<-----------------일본 유명한 일렉 그룹. 대중적인 비트와 멜로디. 그래서 많은 사람들이 좋아한다.

Ono Lisa<-------------------보사노바. 일본여자가수인데, 프랑스어로 부른다. 잔잔하고, 부드러운 멜로디.

그외에 m-flo, FPM, Paris Match 모두 밝고 경쾌한 노래.

살짝 잔잔하면서 어둡고 JAZZY 한 일렉은

Casker

RollerCoaster

Linus' blanket

sentimental scenery

또 계속 업뎃 해야지!

tag : 일렉트로니카, 일렉, electronica

광고찍는 경희

2008-08-28T11:33:03Z

나이스샷

부러운 화정이

2008-08-28T11:29:46Z

카메라 좋은거 갖고 있어서 좋겠다. 후훗