Digital Camera: Mirrorless Camera vs DSLR Camera

digital camera

In this article, we will talk about what a digital camera is and how it works. After reading this, you will able to pick the best buy cameras.

What is a digital camera?

Digital camera captures and stores an image in its memory and sends it to the computer in digital format. These camera images, later stored as a digital file.

Nowadays it is also used for communication between 2 people on the Internet. Like when we make a face to face video calls, we use digital cameras.

Nowadays, all digital cameras are available with camera image editing software and memory cards. The cost of the digital camera depends on its resolution. The more resolution you want, the more money you have to pay. 

In the market, the camera brands like Fuji, Nikon, Samsung, Canon, etc. are readily available. Digital cameras have LED screens, which are 2.4 and 3.4 sets in size. The digital camera supports all operating systems on the computer. 

With a digital camera, you get a USB cable, product manual, bag, and power adapter. You get all the information about using it in the manual. You can also make video recordings with a digital camera. 

If you go somewhere to roam, then you can use a digital camera. You can easily share good recordings with your friends. Special photo printers can also obtain digital camera output.

The main features of a digital camera are internal memory, LED power, high-resolution battery life.

How does digital camera work?

The construction of digital cameras is very similar to that of traditional ones. The essential components are body, objective lens, diaphragm, shutter, and a light-sensitive surface or image sensor. 

The difference is that digital cameras transform the image into electrical signals and store it in this form too. In traditional cameras, light produces a chemical change in the light-sensitive film to take excellent photos. 

We often need accessories besides the camera because, for instance, it is challenging to shoot in low-light conditions. If there is not enough light, the camera shutter has to stay open longer, which may lead to the camera shake or the subject’s movement. 

Resulting in a blurry picture, the flash serves as an artificial light source, and the tripod prevents camera shake while shooting. When we take photos, then light rays, gathered by the objective lens. 

It is a set of lenses in which the position of the lenses can be changed. 

This way, we can change magnification; that is, we can zoom in on our subject in which distance the point where light rays converge can also be adjusted, making our subjects appear in focus. 

The objective lens comprises several lenses to correct the imperfections caused by lens aberration. 



The light then travels through the opening in the diaphragm called the aperture, which regulates the amount of light entering the lens. If there is too much light, the width of this opening reduced. If the light is too low, the opening widens. 

The depth of field can also be adjusted with the aperture. A smaller aperture results in a deeper depth of field that is the subject and the background are too sharp. 

However, a larger aperture results in a shallower depth of field that is only the subject will be sharp. In single ion’s reflex cameras after light passes through the aperture. 

It reaches a mirror positioned at an angle to reflect it through a pentaprism to the viewfinder. 



The pentaprism ensures that the image we see in the viewfinder is not upside-down. Some cameras have a semi-transparent mirror with a secondary mirror behind that is perpendicular to it. 

This secondary mirror directs part of the light towards the focusing screen and then a sensor array to operate the autofocus system. 

Image sensor

digital camera

When we take photos, the mirror flips up, and the light travels straight through the shutter. It opens at the same time, allowing it to reach the light-sensitive surface that is the image sensor. 

The shutter stays open for a short time if there is intense light and stays open longer in a light condition. 

Exposure time

Short exposure time and large aperture are ideal when shooting moving objects so that the image will not be blurry. Long exposure time needed for taking pictures of the stars at night, and the camera has to be placed on a tripod. 

The light reaches the light-sensitive surface or image sensor passing through the shutter. Which comprises millions of photosites or pixels, and converted into electrical signals which are processed by the camera’s processor. 

These are then stored on the memory card in the same form for each pixel. 

 ISO sensitivity 


The ISO sensitivity image sensors’ sensitivity to light has a vast range.  

However, if we raise the ISO number, the amount of noise in the image also increases. 

Modern cameras adjust the focusing aperture, shutter speed, and ISO settings automatically. But many other automatic, semi-automatic and manual modes can also be selected.  

Cameras can take color photos because tiny red green or blue color filters cover each pixel sensor. This way, the camera’s electronics know the color of the light. 

The different pixels captured in cameras without a reflex mirror light continuously reaches the image sensor.  So the image seen by the lens is always visible on the LCD screen. Which also serves as a viewfinder at the back of the camera.

Difference between a digital camera and digital SLR 

In the DSLR camera, you can change the lens, and according to your need, you can install different lenses. Now you will think about why the lens, required in standard photography. 

In normal photography, you do not need a lens. But if you want to do portrait photography, then you need a DSLR. 

In portrait photography, the background is blur behind. For this type of photography, there are portrait lenses available for DSLR cameras, which are for portrait photography. 

By using it, the camera automatically blurs the background of the subject. While in a digital camera, you cannot change the lens. The drawback is that you can only do standard photography while you can do professional photography with SLR. 

The DSLR comes with many types of lenses, such as – zoom lens, microlens, telephoto lens, portrait lens. You can choose the best lens as per your requirement. In a digital camera, the zoom is as if a 5x is a 20x is, and a maximum is 125x. 

You cannot change lenses in a digital camera

Manual Option

In the digital camera, which is of the upper budget, you can also call semi DSLR. They have the option of manual control. But if you take a lower range, then there is no option of manual too, and you can use auto option. 

So what happens in the auto mode is that you cannot set your recording settings in the auto and you can only do the recording according to the auto setting. 

While there is nothing in the DSLR, and you can use both modes, auto, and manual. Many times, people say Nikon and Canon have high-end digital cameras, which also come in manual mode. 

However, there is a big difference between the manual mode of DSLR and the manual mode of a digital camera.

Like if we talk about the performance of the camera, the sensor of the digital camera is three times shorter than the sensor of DSLR. 

It makes a difference that the pictures do not get good due to the sensor of the digital camera being normal. And if you compare in low light, the photo taken by the digital camera will get many more grains if you check ISO performance. 

The reason for more grains is that the digital camera sensor is smaller compared to the DSLR. With more grains, your image will get damaged, the dot will come more, and your image will not look good.

Shutter speed

In shutter speed, if you manually control the digital camera, you can take it up to 2000 shutter speed. While starting DSLR cameras, shutter speed goes up to 4k. Full frame or high-end DSLR, you can also get 8K.

Aperture value

In a digital camera, if you do manual control, then the minimum value you can open is up to 8k, which means you cannot extend beyond F8. While in DSLR, you can extend it even further.

Lens focusing

The sensor is advanced in the DSLR, and the processor is good, due to which the SLR focuses on quick focus in low light performance. While the sensor in a digital camera is small, it takes a little time to focus.

Image quality

SLR offers three times of good quality. If you have to use for primary use or home purpose, then a digital camera is excellent. If you do not know how to use manual controls or you have to use auto, then you can take a digital camera. 

My suggestion will be that if you buy a DSLR, it will be best for you. 

DSLRs are a little expensive camera, but you also see that you get more benefits too.

 If you are looking for a long-lasting camera, you should buy an SLR camera instead of digital.

DSLR Camera

A DSLR camera has a mirror in front of the sensor. An image comes to the mirror through the lens, and the mirror shows it through the prism in the viewfinder.

When capturing the image shown in the viewfinder, we click the photo button, which we call the shutter release button. When you press it, the mirror goes up, and the light comes on the sensor. Then an image is captured in the DSLR.

Mirrorless Camera

Now let’s talk about the mirrorless camera, a mirrorless camera does not mirror in front of the sensor.

So the light falls on the sensor, and whatever information the sensor reads, we can see it in the form of the image in the viewfinder. When we press the button that releases the shutter, the image shown on the viewfinder, captured. So this is the difference between the two cameras.

Mirrorless vs dslr camera

Camera Weight

The body of the DSLR camera is larger and heavier than the mirrorless camera. While the mirrorless camera lacks a mirror, the body becomes more compact and lightweight. 

For those who travel more with a camera, a Mirrorless camera is very best. Because of the lightweight, it becomes much easier to carry it.


Talking about the button and control, the DSLR has more buttons to operate the camera. In the mirrorless camera, we see quite limited buttons.

Built-in quality

The built-in quality of the DSLR camera is more durable. We can use it easily in rough and harsh conditions. But a mirrorless camera has to be handled very carefully.

Camera Grip and battery backup

If you use big lenses, then the DSLR’s grip is better in shooting with these lenses than Mirrorless. When Mirrorless cameras came into the market, we used to get a very low battery backup.

But now there is a lot of improvement in the mirrorless camera and battery backup.Even today, if we compare the battery backup of DSLR and Mirrorless camera, DSLR’s battery backup is still better.

Mirror and electronic viewfinder

Because of the absence of mirrors in Mirrorless, features like Mirror Technology and Electronic View Finder tend to reduce battery life. In the DSLR camera has an optical viewfinder, which means that whatever the camera shoots, it appears the same.

Meaning, whatever result set in your camera, what result will come in it, we can see it only after clicking the photo. The mirrorless camera has an electronic viewfinder, means that before clicking the picture, you will see how the shoot will be done after clicking the photo.

If you change the camera settings or change in ISO, you will see the changes in the electronic viewfinder in real-time. 

Because the electronic viewfinder has a small display that gives you an accurate preview of how your photo is going to be shot.

Shooting speed

The shooting speed of the mirrorless camera is faster than a DSLR camera. Especially if you shoot wildlife photos or fast-moving subjects.

Mirrorless camera is more capable of shooting in this way, of shooting in such situations.

Due to the absence of a mirror in the mirrorless camera, the image comes on the direct sensor, which gives more shooting speed.

Due to the mirror in same DSLR, the image first comes to the mirror and then comes to the sensor. So the shooting speed decreases.


One advantage of having mirrors in the DSLR is that while changing the lens, the dust does not come on the sensor and stops on the mirror.

In a mirrorless camera, the sensor, exposed. The dust comes to the sensor while changing the lens.

Focus speed

Talking about autofocus speed, Mirrorless has more focus points than DSLR. Even when we speak about mid-range, then we see a difference in focusing power.

For example, we get 5100 focusing points in Nikon 7500. And if we see the Sony 6400 in comparison, then we get 425 focus points in it.

Most of the mirrorless cameras have 80-90 percent area coverage, which helps in fasting the focus in both photography and videography. Good focus power, mirrorless cameras focus very well, even in low light.

Focus Peaking feature

The feature of focus peaking is also available in the mirrorless camera.

It is a huge advantage of a mirrorless camera and one excellent feature of a mirrorless camera. 

In focus peaking, whatever area we have starts to be highlighted in a particular color. We come to know that our focus is shifting and where our focus is accurately targeted.

Autofocus speed

The mirrorless camera has a much better autofocus speed than the DSLR. So, it has a substantial impact on video performance.

Face detection and focus feature

Due to the mirror in a lot of the DSLR, there is no feature of face detection, and focus in the DSLR is more difficult in low light conditions. In the mirrorless camera, we get speedy and accurate focus while shooting video. 

Face detection and advanced focus technology make the mirrorless camera much better in video shooting.


The variety of lenses in DSLR is much wider than Mirrorless. DSLR lenses are cheaper as compared to mirrorless camera lenses. 

If you purchase additional lenses with the DSLR Camera Kit, you can see many lens options. But we find few lens options in Mirrorless and the prices are also very expansive. 

But the mirrorless camera lens has better built-in quality and overall performance than DSLR’s lens.


Mirrorless cameras are much more expansive than DSLR cameras. If you are preparing a mirrorless camera kit for a wedding shoot or a fashion shoot, it costs you a lot more than a DSLR kit. 

In addition to the price, we also see a lot of difference in quality between DSLR and Mirrorless camera.

Pros and cons of mirrorless cameras

  • DSLR lenses are cheaper as compared to mirrorless camera lenses.
  • Mirrorless cameras are much more expansive than DSLR cameras.
  • The dust comes to the sensor while changing the lens.
  • The built-in quality of the DSLR camera is more durable than mirrorless cameras.
  • DSLR’s grip is better in shooting with big lenses than Mirrorless.
  • Mirrorless camera has a much better autofocus speed.
  • Mirrorless camera, we get speedy and accurate focus while shooting video.
  • The shooting speed of the mirrorless camera is faster than a DSLR camera.
  • Mirrorless cameras are compact and lightweight.


The question comes, which is the best buy camera after all these differences. If you are a starter or have just started learning cine photography or photography, I recommend you start with DSLR. 

So that you can improve your skills by investing minimum money, and get to know photography closely. 

If you want to get a professional high-end camera, then you should purchase a mirrorless camera.You will have professional picture quality and improvement in your work, and you will be able to get better output from your project because of all the latest features. 

I think that there will be more demand for mirrorless cameras in the market than high-end DSLR in the coming time.DSLR’s demand has diminished in the market since the Mirrorless camera introduced in the market.

1 Comment

  • Aw, this was an exceptionally good post. Taking the time and actual effort to produce a very good article… but what can I say… I hesitate a loot and don’t seem to get nearly anything done.

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