Understanding Photography.pdf

8/15/2019 Understanding Photography.pdf

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Understanding PhotChristianne Lynnette G. Cabanban


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Triangle of Exposure

There are three main ingredients to good exposurand ISO.

Think of a perfect exposure as a perfect trian– all the angles equal, all the sides are equal. Now if you chang

exposure or triangle, it is no longer perfect so yanother point of the exposure or triangle an equalmake that triangle and therefore the exposure perf


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All the elements of exposure have an ef– sowith that in mind we need to know thehow’s andwhy’s of all the

different elements to best understand howexposure and the desired results in our pho


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Aperture

Aperture is a circular opening (somewhat)that is adjustable from a very small circle to

large as the lens itself. We adjust it to let morehit the digital sensor or film.


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The opening of our lens or Aperture is

stops and here is a very typical range of f st


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Depth of FieldWhen we look at an image, there is

perfect focus and then there are parts tof the range of focus. You can have a s

(DOF) where only your subject is in foa deep Depth of Field where practicafocus– or really anywhere in between.


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Depth of field is determined by three stop), distance to your subject, and le(50mm, 200mm etc), with Aperture heffect on DOF


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Photographers that shoot portraits usuallapertures (low numbers) for a shallow DOFisolate their subjects. Landscape photographer

apertures to have a very deep DOF, all the wayto the background.

As usual, there are exceptions to these rule

by thephotographer’s artistic ideas and vision.


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Shutter Speed

Shutter speed controls how long tthrough our aperture to our digital senlonger the time, the more light will hit tis technically what shutter speed does.

Artistically, shutter speed controls mwe want to freeze motion or show motithe portion of exposure that will control


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Shutter speeds are expressed in second 1/8, 1/125, 1/1000 etc.


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Beyond that we can now makejudgment– do we want to stop actionmovement? And this is a judgment ySometimes we may want to freeze ousharp and clear. Other times we wansubject to give the viewer the impresis moving or is at speed.


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ISO (International Standards Organi

We use ISO to help us achieve what wother two sides of exposure; Aperture and ask; Whydon’t we just use the most sensitive o

about it? Well because the downside of hincreases the noise or grain in our images. Tmake the image look so bad that it becomes


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So our objective is to use the lowbut balancing that to what we want to

Shooting outdoors on sunny or eovercast days we can use ISO 100 oheavy overcast days we may need to400. Especially if we use a small ap

less light) for shooting a deep depth shot, while still being able to maintaithat we can safely handholdwithout a


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As we move indoors to a brightly lit to move up to ISO 800– 1600 to take natural lighwithout the need for using our flash. Aslit rooms or street scenes, we may need 3200 or higher (remembering again thacan shoot at these higher ISO without ex


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Focal Length

Selecting different focal lengths cathe aesthetics of your scene. Zoomingsame subject area greatly changes therelates to the background and the pebetween the two.


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However, there is never one best lechoice. Ifyou’re wanting to show how a subjthe background, using lenses of differcan change the way the background ato the subject.


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Experimenting with these various a powerful part of the creative procchoice is a huge part of the compositimage. You can use a wide lens tbackground or create distance, or cholength to compress your subject againA focal length of any choice can bdependingon the way you envisionthe


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70 MM from 55-200

35 mm

18 mm from 18-55


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Sunny 16 Rule


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Rule of Thirds• The basic principle behind the rule of thir

breaking an image down into thirds (both vertically) so that you have 9 parts. As fol


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The theory is that if you place poin the intersections or along the linphoto becomes more balanced and wof the image to interact with it mo


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Point of Focus

When a photographer uses the term "point oto that object in a photograph at which he waattention. "Focus" itself refers to the amount sharp. Both the point of focus and the amounresulting image. In short, altering each one chfinal photograph.


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Specific, Single, Off-Centre Auto Fo

• If your camera has this function, then you areofany of the focus points as reference.

• For example, you are doing a commercial or stor glasses of wine all in a row. You want thdistance using shallow depth of field and want the left of the frame in focus whilst the remaiblur into the background.


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All Focus Points•

As we touched on briefly before, there arewhere I personally would useall points, being mainly spnature photography with subjects that mov

erratically.• These would be particularly useful for fast

it is virtually impossible to keep them over selectingall points, the smart chip in the camerpoint the moving subject is closest to and forth instantly to keep the subject well in fo


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Ideas to Kick Start Photograp

1) Fixed Focal Length Shoots - shooting with a prime lensfocal length) that makes you think about th

your shots a little more.2) The 1 Roll Rule - limit yourself to 36 shots (the nuof film). In doing so you’ll find yourself reall

your shots. You’ll time them better and make counts!


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3) Compositional Rules4) Explore other techniques 5) Lighting Technique- similarly set yourself the

to practice your skills with a particular

6) Manual Exposure Mode Weekend


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Photography Projects

1) 365 Days Project -take a picture of anything efor a year.

2) 52 Photowalks- you should get out of the howeek with your camera.

3) 100 Strangers -The idea is to approach someonever met before, ask if you can take ttalk to them a bit to get some kind of b


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4) A-Z - You can pick a place and try to get a picture

with or represent each letter of the alphabet.

5) Pick-A-Something - For instance, pick a color and try t

photographing only red things, or try only gettinthat are squarewhen you’re on a walk.

6) Go Mono–Your goal is to get better at converting phwhite, to see things differently, and figure out wlook better in mono, and which ones wouldn’t.


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RESOURCES

• http://digital-photography-school.com• photo.tutsplus.com/

Documents

Understanding Photography.pdf