Socrates

"The only true wisdom is in knowing you know nothing." 

Socrates

"To find yourself, think for yourself."

Nelson Mandela

"Education is the most powerful weapon which you can use to change the world."

Jim Rohn

"Success is nothing more than a few simple disciplines, practiced every day." 

Buddha

"The mind is everything. What you think, you become." 

Tuesday, 14 February 2023

Hemingway

 Hemingway was a journalist and novelist. A storyteller. He’s one of the great writers of literature. In 1953, he won the Pulitzer Prize for “The Old Man and the Sea.” In 1954, he won the Nobel Prize for literature.

Hemingway's writing career began in the 1920s. He was a reporter for The Trapeze, his high-school newspaper, and he published a couple of stories in the Tabula, the school's literary magazine.

After Ernest's high-school graduation, Dr. Hemingway realized that his son had no passion for further education, so he didn't encourage him to enroll in college.  Instead, Dr. Hemingway  find out if his son could sign on as a cub reporter. 

Hemingway's distinctive style. 

Hemingway took great pains with his work; he revised tirelessly. "A writer's style," he said, "should be direct and personal, his imagery rich and earthy, and his words simple and vigorous,  burnished and uniquely brilliant.


1. USE SHORT SENTENCES

Short sentences are easier to digest. They make it easier to follow each point of an argument or story. Hemingway adored the short sentence. He scattered them throughout his books. Their punchiness and rhythm felt as if they were pulling and tugging the reader along.

As a writer — or editor — is to make life easy for our audience. Forcing the reader to navigate through a bunch of long, complex sentences is not necessary.

2. USE SHORT FIRST PARAGRAPHS

Hemingway said writers should use short first paragraphs. Simple language makes our content more accessible.  Writing with simplicity doesn’t mean dumbing down our words. Instead, we write clearly and precisely.  So our content becomes easier to read and accessible to more people. Hemingway makes each sentence about one tiny idea. Then he lets the next sentence build on that idea. His story unfolds in tiny, logical steps.

3. USE VIGOROUS ENGLISH

He means using hyper-focused language to sharply and passionately articulate ideas. So: writing with intention. Being purposeful and deliberate with each sentence. Making each word count. “It’s muscular, forceful (writing). Vigorous English comes from passion, focus and intention.”

This type of writing  is  thoroughly and fully understand what you're writing about. It's impossible to write with vigour and passion without having a real grasp of your subject.

4. BE POSITIVE, NOT NEGATIVE

Basically, “be positive” means you should say what something is rather than what it isn’t.Instead of “I’m not lying to you” Hemingway would write, “I’m telling the truth.”

– Instead of saying something is “inexpensive,” say it is “affordable.”
– Instead of describing something as “unclear,” say it is “confusing.”

 Being “positive” makes your writing more direct. 

5. Never use a harder word where a simpler word will do.

Writers who love exploring new words must be careful. It’s easy to get in the habit of using difficult language where simpler language will do.

I tend to obsess over big beautiful words and at times am tempted to use them in my writing but I also must remind myself there is a balance to it all.

Copywriters, writers and marketers make their living first and foremost through effective communication. The reader must be able to fully comprehend what thought or idea the writer is writing about. This is best accomplished through simple language.

With that said, there is always room to add in the occasional 360 between the legs slam dunk, just to keep the reader on her toes.

One iconic element of Ernest Hemingway’s writing style was the simple words he used in his writing.

He wrote lived instead of existed, looked versus gazed, clear rather than translucent and white in place of ivory.

Hemingway didn’t overcomplicate his craft. He pieced together his sentences from a toolbox overflowing with words everyone spoke and still speaks. The farmer or the rocket scientist could read Hemingway and that’s a feat that shouldn’t be taken lightly.


Sunday, 12 February 2023

DEPTH OF FIELD- Focal Length

  the depth of field.


In short, depth of field is simply the space in the image that is acceptably sharp and in focus.

Focusing consists of adjusting the lens to find the maximum sharpness, contrast, and resolution for a chosen subject.

There are two ways to focus in digital photography:

  • Manual focus: Using your hands to tweak the focus ring until you get to the best focus.
  • Automatic focus: Using the camera’s and lenses’ internal motors to focus on a given subject.

Using manual focus or autofocus will depend on the type of photography that you do. 

For instance, in some genres like macro and night photography, it’s better to use manual focus. Yet, in other genres, like wildlife or sports, autofocus is faster and will make things easier.



In photography, we can say that there’s
 a shallow depth of field when just a narrow portion of the frame is acceptably sharp, 
whereas 
a large depth of field when a big portion of the frame is considered to be in focus.


Depth of field is affected by many different factors:
      • Aperture: The wider the aperture, the shallower the depth of field
      • Focal length: The longer the focal length, the shallower the depth of field
      • Focusing distance: The closer the subject to the lens, the shallower the depth of field
      • Sensor size: The smaller the camera sensor size, the shallower the depth of field .

Aperture

Aperture is the opening in your lens that lets light pass through to the sensor. 
Large apertures, which correlate to small f-stop numbers, produce a very shallow depth of field. On the other hand, small apertures, or large f-stop numbers, produce images with a large depth of field.




  • Large apertures, which correlate to small f-stop numbers, produce a very shallow depth of field. On the other hand, 
  • small apertures, or large f-stop numbers, produce images with a large depth of field.


Focal length

Focal length is related to the photography lens basics

The focal length works by describing each lens in terms of millimeters from the optical center of the lens to the sensor. 

Focal length, usually represented in millimeters (mm), is the basic description of a photographic lens. 



It is not a measurement of the actual length of a lens, but a calculation of an optical distance from the point where light rays converge to form a sharp image of an object to the digital sensor or 35mm film at the focal plane in the camera. The focal length of a lens is determined when the lens is focused at infinity.




Depending on how short or long the focal length is, this will have a direct impact on the field of  view of your images and in other aspects like the depth of field.


For example, 

shorter focal lengths like wide-angle lenses will have a wide-angle of view, whereas 
longer focal lengths like telephotos will have a narrower angle of view.





The focal length will also create different effects, 
    like distortion in wide angles of view, and 
    magnification in narrower angles of view.

WHAT IS A LONG FOCAL LENGTH 

long focal length. 

An image taken with a 100mm telephoto lens will have a much smaller section of coverage than a normal or wide-angle 


Lens focal length tells us the angle of view—how much of the scene will be captured—and the magnification—how large individual elements will be. The longer the focal length, the narrower the angle of view and the higher the magnification. The shorter the focal length, the wider the angle of view and the lower the magnification.


Zoom vs. Prime Lens

There are two types of lenses-prime and zoom. Prime lenses have a fixed focal length and zoom lenses have variable focal lengths.

Zoom Lens Benefits

The advantage of a zoom lens is versatility(ability to adapt). They are ideal when you are photographing a variety of subjects such as landscapes and portraits, and you just want one lens for both situations. Using a zoom lens also reduces the number of times you need to change the lens which saves time .


Prime Lens Benefits

The main advantages of prime lenses or fixed focal length lenses are their size and weight as well as their maximum aperture or f/stop. Prime lenses tend to be more compact and lightweight than zoom lenses.


Prime lenses also tend to have a larger maximum aperture (f/1.4 to f/2.8). This is an advantage when shooting in low light conditions as it will increase the possibility of hand holding the camera and freezing the subject without shake or blur caused by the longer exposures. Photographing using prime lenses with large apertures also means you can get a shallow depth of field which is useful for portraiture where you might want a softer or blurred background .


Lens Focal Length Comparison

Wide-angle Lens

FX format approx. 14 – 35mm / DX format approx. 10 – 24mm

Wide angle lenses are popular lenses for landscape photography, interiors, large group photos and when working in confined situations.


Standard Lens

FX format approx. 50 – 60mm / DX format approx. 35mm

Standard lenses are popular as they are closest to the angle of view we humans see. These lenses have minimal distortion, which can be flattering to the subject. They tend to use large apertures and allow a lot of light to enter the lens which makes them fast in low light conditions. Large apertures (f/1.8 – f/1.4) also produce a pleasing out-of-focus effect to the background which concentrates the attention of the viewer on the subject. Standard lenses are the popular choice for a wide range of photography including portraiture, nature and low light situations where the photographer can not use a flash or is looking to capture the scene with available light.


Standard Lens

FX format approx. 50 – 60mm / DX format approx. 35mm

Standard lenses are popular as they are closest to the angle of view we humans see. These lenses have minimal distortion, which can be flattering to the subject. They tend to use large apertures and allow a lot of light to enter the lens which makes them fast in low light conditions. Large apertures (f/1.8 – f/1.4) also produce a pleasing out-of-focus effect to the background which concentrates the attention of the viewer on the subject. Standard lenses are the popular choice for a wide range of photography including portraiture, nature and low light situations where the photographer can not use a flash or is looking to capture the scene with available light.


Super Telephoto Lens

FX format approx. 300 – 600mm / DX format approx. 200 – 600mm

These lenses provide a good range for wildlife and sports photography where the photographer is limited as to how close they can get to the subject.


Camera-Subject Distance

Another important factor affecting depth of field is the distance between the camera and the subject. The shorter that distance, the smaller the depth of field. 


Sensor Size

Sensor size also affects depth of field. The size used as a reference in digital photography is the classic 35 mm sensor size, also known as Full-Frame. If the sensor is smaller than this size, it’s said to be “cropped”, and if it’s bigger, it’s considered “medium format.

For example, a basic rule in night photography is to use a sensor with larger pixels, since these are better at capturing light and will allow you to take a better-quality image with less digital noise.


The depth of field is the last effect of the camera sensors. Using the same field of view, the depth of field will be narrower in cameras with larger sensors and larger in cameras with cropped sensors. An example is portrait photography, where photographers usually shoot with larger sensors to decrease the depth of field and bokeh effect.



In a nutshell, cameras with smaller sensors have larger depths of field. 


source 

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Saturday, 11 February 2023

Photography- EXPOSURE TRIANGLE

 

What Is Photography?

Photography is the art of capturing light with a camera, usually via a digital sensor or film, to create an image.

The first permanent photograph was captured in 1826 (some sources say 1827) by Joseph Nicéphore Niépce in France.

BASIC CONCEPTS OF PHOTOGRAPHY

These are the main photography basics:

 

1.       Exposure

2.      Aperture

3.     Shutter speed

4.     ISO

5.     Exposure triangle

6.     Depth of field

7.     Focal length

8.     Sensor size

9.     Focus

10. Sharpness

11.   Camera settings

12.  Camera modes

13.  Metering modes

14.  Focus modes & areas

15.  White balance

16. Histogram

17.  Composition

18. Photography gear

19. Editing



EXPOSURE-THE MAIN ELEMENT OF PHOTOGRAPHY

 Exposure is the most important photography basic and the photography concept, exposure is depend on the amount of light collected by our camera.  

“Photography is painting with light”, Photography is about capturing light.  



 

The photography exposure basics are the apertureshutter speed, and ISO. The image should be correctly exposed, that is, with the perfect amount of brightness where you can see all the detail in the highlights and the shadows.


 

 


1.APERTURE-A FUNDAMENTAL CONCEPT IN PHOTOGRAPHY

 

In brief, the aperture works like our pupils; it’s the opening of the camera lens, which controls the amount of light that goes through the lens to the camera sensor.

 

 

The wider the aperture the brighter the image will be, and

the narrower the aperture the darker it will be.

It also plays a significant role in the depth of field and sharpness of the image.

 


 

The aperture of the lens is defined by a value known as “F-stop”.

 

 The larger the F-stop number is, the smaller the aperture and

the smaller the F stop number is the larger aperture .

 

The best aperture camera settings will depend on the light, the subject that you’re shooting, and the final look that you want in your image.


https://www.youtube.com/watch?v=YojL7UQTVhc&list=PLBWs5dCYykYXo6VmL9EuetvoLSH8bEHlt

 

 

2. SHUTTER SPEED

 

A KEY ELEMENT FOR PHOTOGRAPHY

 

The shutter speed is related to how long the camera shutter is open and capturing light.

This has a significant impact on the exposure;

a longer shutter speed will capture a brighter image.

a shorter shutter speed will translate into a darker image whereas

 

The best shutter speed settings will depend on the available light and the motion that you want to capture in your subject.


 

3.ISO –

ISO is simply a camera setting that will brighten or darken a photo. As you increase your ISO number, your photos will grow progressively brighter. 

For that reason, ISO can help you capture images in darker environments, or be more flexible about your aperture and shutter speed settings.

when you double your ISO speed, you are doubling the brightness of the photo. So, a photo at ISO 400 will be twice brighter than ISO 200, which will be twice brighter than ISO 100.


 

the higher the ISO,  the brighter the image will be, and

the lower the ISO, the darker the photograph will be.

 

The ISO number is usually measured using “ISO levels”, which follows this sequence:

 



ISO stands for International Organization of Standardization. 

 The International Organization of Standardization was a governing body responsible for standardizing sensitivity ratings for camera sensors. 

A high ISO number makes the roll of film more sensitive to light.

When the photography world made the switch to digital cameras, it retained the ISO standard to describe a digital sensor’s light sensitivity. 

 The minimum setting on most digital cameras is ISO 100, which is the least sensitive to light. The maximum light sensitivity setting varies by camera model. 



EXPOSURE TRIANGLE –THE PHOTOGRAPHY BASICS

 

The photography basics of aperture, shutter speed, and ISO, it’s time to put them all together!

According to this, all three elements must be in balance if you want to capture a correctly exposed image. 



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