RELATIONSHIP BETWEEN APERTURE AND SHUTTER SPEED:

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Photo compliments of: Viewbug.com

If you have the DSLR camera or equivalent, then you may constantly be thinking about shutter speeds and apertures.  Which way should I lean?  Should I use this aperture, or should I use this shutter speed, etc.   So much to think about if you really want to be artistic in your photography.  But, it’s worth it to know and learn all you can about this subject.  I know I have posted  and published articles before about both these subjects, but, I liked this article because it talks about the relationship between the two.  It’s worth looking at and reading about so you can improve your photography.  The article is written by:  Joe Watson.  His insight is really good, and I hope you get something from this article.

SHUTTER SPEED AND APERTURE

Understanding the relationship between aperture and shutter speed will help you take full advantage of your DSLR, allowing you to have more fun capturing photos. The aperture is the size of the hole in the diaphragm of the lens. It is possible to view this device when you look right square into the lens of the camera. The aperture diameter (size of the hole) is denoted by a sequence of f-numbers. The DSLR’s digital screen will display the aperture size, as well.

The smaller the f-number, the larger the aperture (hole), and consequently, the larger the f-number, the smaller the aperture. Every time you widen up one step (f/5.6 to f/2.8, for example), you allow in twice the amount of light. Reduce one step, and you let in half the amount of light. For illustrations of the actual aperture in the lens and its relationship to the f-stop numbers, go to my site, the link is at the bottom.

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Time stays still, sometimes. Photo taken by PictureSocial Member MarAndra.

 EQUIVELANT EXPOSURE:

OK, so we know that aperture is the size of the opening in the lens where light enters, but how do you apply it to capturing images? Photography is all about getting the correct quantity of light for a given picture. At f/22, which is a very small aperture, less light will hit the image sensor compared to a picture taken at f/1.4, which is a very big opening. Keep in mind, though, that this is assuming the shutter is open for the same amount of time.

But you can get the identical exposure at f/22 as you can get at f/1.4 by simply lengthening the shutter speed, which causes the shutter to be open for more time, allowing more light in. Aperture and shutter speed settings combined allow a desired quantity of light to be exposed to the image sensor. Different combinations of f-stops and shutter speeds can achieve identical results in exposure. For example, f/8 at a shutter speed of 1/30, which will open the shutter for 1/30 of a second, will result in the same exposure as f/16 (smaller hole) at a shutter speed of 1/8 of a second. This is known as equivalent exposure.

ARTISTIC CONTROL:

Knowing that you can get the same exposure values using different combinations of f-stop and shutter speeds is one thing. Knowing when to use them is something else. Just because you will be able to get the same exposure does not mean that your image results will be the same. This is where the art of photography comes in.

Do you want a sharp image or some blur? Do you want everything possible in focus or just the subject? Once you decide the answers to these questions you can choose your settings for aperture and shutter speed.

DEPTH OF FIELD:

Shutter speed settings and the effects they have on your image are not too hard to understand. The longer the shutter is open (slower shutter speed), any objects that are moving in the field of the image will appear more and more blurred. Remember, though, that the subject doesn’t have to be the one moving to result in a blurred image. A slow shutter speed with a shaky hand can blur a picture as well. This is why a tripod is a good idea–and sometimes mandatory–for shots with slower shutter speeds. Aperture has an effect on something known as “depth of field”. The smaller the f-stop, which widens the diameter in the lens, the less depth of field. Consequently the bigger the f-stop, which shrinks the diameter of the hole in the lens, the more depth of field. The more depth of field, the sharper all objects in the field of view. With less depth of field, only the subject in focus will be sharp.

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“Octoberfest 2008”  photo captured by picture member myvista

PUT IT TO USE:

It is not difficult to start experimenting with aperture and shutter speed and start getting quality results. Even the least expensive DSLRs on the market today have the tools necessary to aid beginner photographers when it comes to taking pictures on settings other than auto. Decide what type of picture and effect you want.

For the first example, we will use a candid portrait of a person’s face. The desire is to have the face fill the shot and to be the main focus point of the image. To obtain this result, put your camera on Aperture Priority mode. This is a setting that gives you control over the aperture while the camera takes care of shutter speed on its own. Now that you are in control of the aperture, go ahead and open it all the way. Focus on the subject’s face and take the shot. In taking this shot, you have reduced the depth of field so that only your subject’s face is in focus, blurring most everything else out.

I will use a landscape photo for the next example. Landscape photos require maximum depth of field. Put your camera on Aperture Priority mode like the example above. But this time, close or narrow the aperture all the way. Now that the aperture is very tiny, the camera will compensate on its own by forcing the shutter to stay open longer to get the right exposure. The result of this can lead to a blurred image, so a tripod is recommended.

For a final example, I will use a sporting event. This time, utilize the Shutter Priority setting on your camera. Shutter priority allows you to set the shutter speed on your own while the camera compensates for exposure by setting its own aperture. A cool technique to try is to slow the shutter speed down and take shots of the subjects running, jumping, etc.. The trick is to follow the subject with the camera while taking the shot at a slow shutter speed. If you are smooth about it, you will get a result that shows the subject mostly in focus but everything in the background blurred with motion. This will give the sensation of movement and speed in the photo. It’s not easy to achieve desired results, so take a lot of pictures.

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Photo captured by PictureSocial Member DJK

What you want to do is try out these different techniques as often as you can. Get used to taking shots on settings other than full auto mode. Only once you get comfortable with the different camera settings and the relationship between aperture and shutter speed will you start to unlock the full potential of your DSLR camera.

Happy Shooting!

About the Author
This articles was written by Joe Watson from lrcamera dot com. “I practice photography as a hobby. I love to learn and write what I learn. I hope this helps anyone out there with a new DSLR camera.”





 

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AMAZING PHOTO OF A WHITE TIGER IN THIS WEEK’S PHOTOS OF THE WEEK

There are some great photos that I can find all over the internet, on Pinterest, on Twitter, on certain websites, and on Facebook, etc.  And once in a while, I find it amazing that there are certai…

Source: AMAZING PHOTO OF A WHITE TIGER IN THIS WEEK’S PHOTOS OF THE WEEK

AMAZING PHOTO OF A WHITE TIGER IN THIS WEEK’S PHOTOS OF THE WEEK

There are some great photos that I can find all over the internet, on Pinterest, on Twitter, on certain websites, and on Facebook, etc.  And once in a while, I find it amazing that there are certain web pages, or group pages, that I think I should just take the time to share the photos that are submitted there to be shared in that group.  And they are certainly worthy of being called “PHOTOS OF THE WEEK”.  So, this week, I have selected photos from a few of those type of “Like” pages or “Group” pages from Facebook that should have special recognition.  Congratulations to the following groups who have some incredible photographers who have submitted photos in those groups to be shared to the world.  Those groups are:

  • BEAUTIFUL PHOTOS
  • AMAZING BEAUTIFUL WORLD (FEATURING ANIMALS)
  • ABC PHOTOS

I hope you enjoy this collection from this group of great photographers. It took a great deal of time to find the ones that I felt would fit the winning category, although there are many photos that could be winners, for sure.  Let’s take a look at these now:

 

 

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Photo by: Juan Zas Espinoza

This photo taken in Scotland just made me stop and look at it over and over.  The beautiful blue waters, mixed with that colorful skies, and the lighthouse on the edge of the land, just makes for this a beautiful landscape photo.  Congratulations Juan for this beautiful landscape.

 

 

 

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Photo by Dave Allen Photography

We are approaching winter and I love seeing what to do with great winter scenery.  This one is great because of it’s simplicity, but using the light of the golden hours and catching that with the snow….. just lovely.  I just really love all the color that this winter photo has captured.

 

 

 

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Photo by: Sanet Guler

There is so much color and contrast in this photo, that it just makes this one an exceptional photo.  Plus, the bright color of the lighthouse makes this one an exceptional photo.  There is so much story to this photo too:  the windblown grass, the approaching storm!  Wow, what an amazing photo.

 

 

 

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Photo compliments of :  Amazing Beautiful World

Now the reason this photo wins “Photos of the Week” may not be for it’s photographic composition, but, for capturing something so unique, it has to be a winner because how do you do that????  That is just a great and entertaining photo.  I would guess this is not taken by someone in the city.  But, what a picture for talking about for a long time.  Thanks for sharing this photo with the world.

 

 

 

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Photo compliments of Amazing Beautiful World

Now, this photo may have been taken in a zoo, looking at the floor and background.  But, to get the tiger to get to that pose, and for the photographer to know that you need to get down to the cat’s level is also worth the award.   Wow, what a beautiful animal and what a wonderful serene photo from such a majestic animal.

 

PORTRAIT OF THE WEEK:

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Photo by:  Лили Алеева

 

What I like about this portrait is that this is just a nice photo captured outdoors, nicely done with a beautiful model, certainly helps too.  A different idea to posing and very popular with beautiful models.  Something you can try with single girls and seniors.   Looks great.

 

So, that is this week’s Photos of the Week.  Hope you enjoyed these.  And if you  have any interest at looking at more of these type of photos, go to Facebook’s Like pages, and search for those pages listed at the top of this post and find these groups and enjoy more great photos. 

 

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