Photography - Knowledge

F-stop in DSLR Photography: Know Which One to Use!

1359 Views - 4 mins read

Beginning to click feels like entering an all new world in itself. With everyone talking funny, obsessed with details, F-stop in DSLR photography, puts beginners into a muddle. Worry not!

Here’s your chance to understand F-stop in DSLR photography. What does the number mean?

F What? Understanding F-Stop in DSLR Photography.

Understanding the requirements of photos, working on the spray and pray mode, we exactly know how you feel. Jotting this blog down is to make swaying the difficult waters easy!

F-Stops! What Does the Number Mean?

F-Stop in DSLR photography, also termed as F-ratio, F-number, or relative aperture, defines the ratio of the lens’s focal length to the pupil diameter. It actually is the measure of glass speed.

Try having a look at the picture here and analyze colors, brightness, clarity etc. The images signify how varying the focal length or F-number gets a blown-out effect in the first one. On the other hand, for the one on your right, aggregating the numbers produces a sharper and clearer picture.

F-stop in DSLR Photography: Know Which One to Use!

So, the figure is arguably important to give any picture a creative outlook. F-stop in DSLR photography controls the depth of field, monitoring the amount of light hitting the camera sensors. Furthermore, closing or opening the aperture/lens is hooked on the shoulder of shutter speeds, which is further subject to ISO.

If that’s complex, let’s chimp-in to understand the Highs and Lows for the spot-on picture!

The factors counted in defining F-stop in DSLR photography are listed below.


How an image is exposed to the depth of field is part of DSLR photography 101.

Inside any DSLR camera glass, the mechanism that controls the amount of light entering the lens and being processed by camera sensors is IRIS. The opening is named aperture . This stresses acquaintance with F-stop, aperture, and iris.

F-stop in DSLR Photography: Know Which One to Use!

The aperture reins the lens opening. It is important when the background being captured is distorted or the subject under study is prime. Even if the elements comprising a scene are sharp, an aperture is important.

Expert photographers have framed out a chart for beginners. Hope it helps our readers.

F-stop in DSLR Photography: Know Which One to Use!

Making rule scripting easier for retention, we spell it as below.

A larger F-stop value signifies a smaller aperture , aiming at less light entering the lens.

A smaller F-stop value results in a larger aperture , allowing more light.


The acronym ‘ISO’ stands for International Standard of Organization and stated as “Iso” by photographers. The term aims at making you cognize how alterations on the scale affect glow.

The word ‘glow’ is mostly used to signify women, but here, it is typically about pictures being clicked.

Knowing how it works will make the shades turn blue.

F-stop in DSLR Photography: Know Which One to Use!

Rephrasing the statement for clarity, consider clicking in the golden hours. For those to whom the term seems new, it’s the hour shortly after sunrise and before sunset! The angle of the sun at this hour produces magical, golden light.

Not getting carried away, customize the value at ISO 1600 or 3200 and Snap! Change to ISO 100 or 200 (lowest on the scale) and click o’er. Compare!! You will categorically notice, one with ISO 100/200 are unblemished, compared to the one with higher ISO.

Don’t just run into conclusions. There’s still room to explore more. So, reverse and click. Dead-on! ISO is scheming exposure using the camera software, making it light sensitive.

To know more about ISO, read: Understanding ISO in simple steps!


Responsible for exposure, it is the camera gear drive (mechanical or electronic) that controls light hitting the sensors.

F-stop in DSLR Photography: Know Which One to Use!

Shutter refers to the mechanical or electronic control that allows light to hit the sensor and therefore is responsible for the duration of the exposure. When shutter speed and F-stop numbers are linked, defining kith and kin, it makes concepts easier to hold and memorize.

Fast shutter speed or higher f number => stops action

Slow shutter speed or lower number => denotes motion

Remember, slow shutter speeds will spectacle shaking the camera.

F-stop in DSLR Photography: Know Which One to Use!

Having Read All, What’s the Next Thing That I Need to Do?

Histories are not made in one day! Similarly, concepts are learnt through practice. Where each click matters, set your sugar DSLR’s to aperture mode and start clicking. Compare to put in practical what you’ve learnt and then it’s time for the next gear.

We exactly know what the next question inline is?

Why do in this world I need to master 3 challenging gears just to control exposure?”

Play around and you’ll automatically get an answer to it. Not to forget, mastery as well. So don’t let F-stop , STOP you. Let it be the beginning of a never-ending journey between you and your beloved.

Also read: How to find the lens’s sweet spot for a perfect picture!

Wait, this doesn’t end here. Now that we barred a lot, it’s our time to hear. Don’t forget to share experiences and consents.

And yes, if we did miss something, tag us or leave comments.

Photography - Beginner
Live Your Passions
Get Started
15800 Views - 0 Comments
8 Mins Read
4606 Views - 0 Comments
4 Mins Read
3498 Views - 0 Comments
7 Mins Read