The ABC of Photography – Part 7: – The “ABC” in photography is much simpler than it looks to non-photographer (at least to understand). Real magic starts when one wants to use and control it in real life to capture moments that can’t be repeated.

The ABC of Photography

So these basic parameters are Aperture, Shutter speed, and Camera ISO. Whenever you press the little black magic button that gives you so satisfying feel and music (click sound or no click sound) an image is formed by using these three parameters.

The exposure triangle is made up of three parts. Aperture, shutter speed, and ISO are all pieces of the triangle. Most digital cameras have the ability to change these three things. SLR cameras have even more control over them, so you can adjust each part to get just the right amount of light for your photo.

DSLR or Mirrorless

Most camera manufacturers are focused on mirrorless cameras, which they call future-proof or the need of the hour between the two. Mirrorless is my choice and choice for many photographers (Sorry I am a die-hard fan of Fuji) as they are compact and easy for day-to-day handling and carry around. We have camera sensors in 4 (widely and mostly) formats as below. I own FujiFilm X-S10, FujiFilm X-H2 and FujiFilm GFX 100S with few lenses.

  • Micro four-thirds, APSC (Some brands have APS-H), Full Frame, and Medium Format

More details on sensors can be read here “Digital Camera Image Sensors & Image Quality“. so in short

DSLR and mirrorless cameras have varying structures and designs, but their sensors, image quality, technology, and many functions are quite similar. While some differences are physical and relate to the appearance, feel, and operation of these cameras, others relate to the video resolution capture and focusing capabilities provided by each technology. When mirrorless compared to larger predecessors (DSLRs), they are known to offer less conventional shooting experiences.

Digital single-lens reflex (DSLR) cameras function by using a mirror to redirect the incoming light onto an optical viewfinder, allowing the user to have a direct, unfiltered view of the scene through the lens. When the shutter is triggered, the camera enters into a reflective process that ultimately concludes with the device being raised and the photograph being taken. Mirrorless cameras possess unique physical features that make them significantly more compact and lighter in weight compared to DSLR cameras.

Conversely, mirrorless cameras lack a mirror-based mechanism and enable the direct transmission of light to the image sensor. The aforementioned cameras have been specifically engineered to possess a compact and lightweight design in comparison to DSLRs, thus rendering them more portable and convenient for transportation. Mirrorless cameras afford users the advantageous features of an electronic viewfinder in addition to a rear LCD screen, rendering the capability to immediately compose images through a digital preview of the surrounding scenery.

Overall, although DSLR and mirrorless cameras vary in their design and technology, they offer similar image quality and a wide range of capabilities. One’s shooting style, preferences, and needs would play a critical role in deciding which option to choose. Based on my personal belief, it can be argued that mirrorless cameras provide a better and improved photographic experience in terms of quality.

Back to Basics

It is imperative to avoid any confusion between Mirrorless and DSLR cameras. A brief recap from the post dated January 1st in above paragraph have sufficed in this regard. Let us now re-direct our attention towards the three fundamental components of photography, namely Aperture, Shutter Speed, and ISO.

In order to comprehend these components in a facile manner, they may be affixed to three distinct portions of the camera configuration.

The enjoyment of playing with Aperture, shutter speed, and ISO can only be achieved by switching off the automatic mode and throwing yourself into the deep end. You’ll have to cultivate a certain finesse as you take control of your camera’s inner workings, delicately adjusting each setting to capture a perfect shot. If you’re looking for an easier option, you can always opt for semi-automated mode – also known as semi-auto mode – where your camera does most of the hard work for you. So you can chose to participate in a restricted form of interaction with them.

For example in the aperture priority mode, the shutter speed and ISO are manually adjusted while the camera automatically chooses the suitable aperture setting and other relevant parameters etc.This way you can still get creative with light and exposure without having to brave the depths of full manual mode. Now go forth and explore the world through your lens!


Aperture – It’s like the gateway to beautiful images, or the gateway to a world of photography you never knew existed! The F number, which stands for the aperture value, is like a key that unlocks this door. With its range of values such as f1.0, f1.2, f1.4, f2, f4, and so on – you can get creative with your photography depending on the light situation or subject matter.

For portraits that have a blurred background, you’ll want to select a smaller F numeral value – which represents a larger aperture – allowing more light to enter and create those beautiful bokeh effects. But if you’re looking to capture stunning landscape scales full of detail and colour – then it’s time to don your ‘Contrasting Approach’ hat and select higher F numeral values that will result in greater depth of field (less light entering the camera).

Shutter Speed

Shutter Speed – Behind the lens we have shutter. If you’re having trouble deciding if your pic is too bright or too dim, think about the shutter speed. Just like adjusting the aperture affects the amount of light that comes through, adjusting the shutter speed also determines how much illumination is coming in. So pick up your camera, and start fiddling with those settings!

By employing a faster shutter speed, it is possible to accurately capture a precise moment in time – like your dog eating the last piece of cake on the counter when you weren’t looking! As the velocity of the camera’s shutter increases, there is an associated reduction in the amount of light that impinges on the sensor – better known as ‘faster than the speed of light’. The attainment of appropriate illumination of an image is contingent upon meticulous attention to minutiae – like not taking your finger off the shutter button until you’ve got a picture perfect shot!

The aperture and shutter are like two opposites – the yin and yang, if you will. The aperture is like a party animal who never rests, forever in a state of openness, while the shutter is more of the ‘set-and-forget’ type, content to work for a predetermined amount of time before taking a well earned break! Talk about opposites attracting!

Camera ISO

ISO – Behind the shutter we have sensor , which controls the sensitivity i.e ISO. It is like the healthy snack option in your camera, the higher the value, the better it is for you only in some particular situations. You might be tempted to choose the highest option available all of the time, but don’t do it – if you go too high, grains will sneak in and make your shot look more like a bowl of granola than a masterpiece. So why do we even have higher ISO settings available? Well, if you want to take pictures of Sasquatch at dusk or a unicorn under moonlight, high ISO values can be beneficial! Otherwise, you’ll just have lots of pictures full of undesired grains.

Well, if your camera’s feeling a little lonely after the sun sets then you should take it out on a romantic late-night date and crank up the ISO! That way, you can both enjoy some low-light loving without worrying about blurry results or getting shook up. Just keep that ISO nice and high – just like your heart rate when you’re out with your boo – and you’ll have no problem capturing the perfect shot!

When it comes to this amazing camera, you don’t need to break the bank or put your lungs up as collateral! Everyone knows that relationships should be easy.

Feedback & Further Questions

Do you have any burning questions about photography or Fujifilm aps-c or medium format cameras that you just can’t seem to put out? Don’t worry, help is on the way! Just shoot me an email or comment below and we’ll do my best to quench your curiosity. That’s right – if you’ve got a photographic conundrum, then this is your one-stop shop for answers. So don’t delay, get in touch with me today and say goodbye to all those nagging photography questions you have been carrying around!


Conclusion- Digital photography as we know has its own league with an extraordinarily different camera options. Taking a picture it’s not solely about the act of pointing and shooting. To capture an excellent photo, it’s crucial to understand the fundamental factors of photography. We have discussed about Composition, Aperture, Shutter speed, and ISO in above story. The system architecture and brands now have photographers network. The process of building a camera involves a major step up in the engineering team, who normally take inputs and valuable feedback from the experts.

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Posted by V Sharma

A Technology Specialist boasting 22+ years of exposure to Fintech, Insuretech, and Investtech with proficiency in Data Science, Advanced Analytics, AI (Machine Learning, Neural Networks, Deep Learning), and Blockchain (Trust Assessment, Tokenization, Digital Assets). Demonstrated effectiveness in Mobile Financial Services (Cross Border Remittances, Mobile Money, Mobile Banking, Payments), IT Service Management, Software Engineering, and Mobile Telecom (Mobile Data, Billing, Prepaid Charging Services). Proven success in launching start-ups and new business units - domestically and internationally - with hands-on exposure to engineering and business strategy. "A fervent Physics enthusiast with a self-proclaimed avocation for photography" in my spare time.

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