In the photography world, exposure is explained as the amount of light that can be captured by a camera sensor when capturing a photo. The brightness of the image depends on this setting.
Consider collecting rain water into a bucket as an example. The amount of water collected after a specific amount of time depends on few parameters. They are the diameter of the bucket, duration of collection and the rate of rain fall. We can control these parameters and change the amount of water being collected in the bucket. Similarly, we can control the proportion of light reflected within the camera by changing three parameters. These are,
- ISO Level
- Shutter speed
- Aperture
Overexposed photographs usually occur from high frequency light reflecting to the sensor of the camera which cause for the captured photo to appear white. If low frequency light reflects to the sensor, the captured photo will be darker and it is called as under exposed photograph. If the photograph is over exposed or under exposed, the value of the captured image may degrade. Hence the above-mentioned parameters should be properly considered during professional photography. Final target of the light balancing is to consider the background light levels and change these settings to get a clear, high quality object with clear object shadows and other object’s parts.
Exposure Triangle
All the components of the exposure triangle are very important to make superior photographs. As a photographer, one must learn to control all these components at once.
ISO settings
Basically, ISO level in the camera controls the sensitivity of the sensor according to the available brightness. Sensor sensitivity means the amount of light being absorbed by the sensor. ISO controls the noise level of the captured image. If ISO level is high, the noise level will also increase. ISO level generally start from 100 in a DSLR camera and generally varies with discrete intervals of 100 as, 100, 200, 400, 800. Its boundary level depends on the sensitivity of the sensor used to capture the images. If we increase the ISO level to approximately for more than 200 or 400 during day time, captured image noise level would increase. Normally, 100 is recognised as the optimum level for the day time when sunlight is available. These first 3 images are captured at low ISO level. Therefore, its noise level is also low. As well as it was captured in a low light situation. The difference between the captured images can be seen.
Below sample photographs were captured with high ISO value. The camera light sensitivity is higher and the photos are lighter. We can also see the higher noise levels in these images.
As a professional photographer, you should have a general idea of the available image file formats. Therefore, image file formats is a very important topic when learning photography. Basically, image file formats are important when you storing images in digital media. You must use only digital images for computer display, mobile phone displays, printers and other digital devices. Different image file formats have different characteristics. As a good photographer, you should have a basic idea of the image file formats you use. Then you can choose the best option, according to your purpose. Let’s move to learn image file formats one by one.
Shutter speed
The shutter speed controls the time duration within which light can reach the sensor of the camera. Increasing the shutter speed will reduce the time allowed for light to reach the sensor and thus the brightness of the image will be decreased. This parameter must be controlled taking any motion present in the image as well as the lighting conditions into account.
To capture fast moving objects without blur, a higher shutter speed is required. However, to control the brightness of the image, the ISO setting should be adjusted. Commercially available cameras usually operate with shutter speeds up to around 1/1000, 1/4000 seconds.
If the object is still or moving slowly, the shutter speed may be reduced as much as possible while simultaneously reducing the ISO value as well (depending on the lighting condition). This will allow more light to reach the sensor and reduce noise level of the image. Capturing images with artistic effects with blurs where motion is present can be done using lower shutter speeds (capturing the image of a waterfall, moving car, etc). The camera lens being used should also be considered when reducing the shutter speed.
The above two photographs captured with low shutter speed is a good example on how the motion effect is brought into the image. Since this is a phenomenon which cannot be experienced using the naked human eye, the value of the photograph may also increase depending on the situation captured in the image.
Aperture (Depth of field)
Aperture controls the size of inward light beam to the camera sensor. Aperture control is done by adjusting the size of the inlet. Aperture word directly describe a space through which light passes in an optical or photographic instrument, especially the variable opening by which light enters a camera. It is specified in terms of f-stop value.
Normally depth of field is equal to f value. This aperture control can be used to get blurry background photographs to highlight the object properly. This phenomenon depends on the focal point and the focal length. (If you like to know about the focal length and the focal point in photography field, you can refer to my “What is the focal length and focal point in photography” article.)
Below image show the changes due to various aperture settings.
Above 2 example photographs were captured using high aperture settings of a DSLR camera. Therefore, you can see the effect of the blurred background. This option can be used to focus to a specific location of the photograph and blur the rest of the image depending on how far it is from the focal point. Images of flowers, birds and stones with a blurred background are common images which can be seen available on the internet due to the artistic nature.
Those two photographs are good examples for low aperture size settings. Therefore, we can clearly see that the background is sharp and not blurred.I hope you guys enjoy my article. Please, you can put any comments on below comment section and share this article for your friends.
~HAVE A NICE DAY!~
I am just writing to make you understand what a remarkable encounter my friend’s princess obtained using your web site. She even learned a wide variety of details, with the inclusion of what it’s like to have an excellent teaching heart to let folks very easily have an understanding of several tricky subject matter. You really did more than our own expectations. I appreciate you for rendering the insightful, dependable, edifying not to mention fun tips on this topic to Gloria.
Thank for commenting! 🙂
I was suggested this web site by my cousin. I am not sure whether this post is written by him as nobody else know such detailed about my trouble.
You’re incredible! Thanks! http://ironthundersaloon.com/
Thank for commenting! 🙂
You have a nice website.
Magnificent items from you, man. I’ve be aware your stuff previous to and you’re simply extremely great. I really like what you have got here, really like what you’re stating and the way in which in which you say it. You make it entertaining and you still take care of to stay it sensible. I can not wait to read much more from you. This is really a wonderful web site.
Thank you so much Cua!
New articles are coming soon!
Aw, this was a very good post. Spending some time and actual effort to create a superb article… but what can I say… I
put things off a whole lot and don’t seem to get anything done.
Dear Rochelle, Don’t think like this. Everythings are possible..
Cheers, great stuff, I like.
Thank you so much!
I’m impressed, I have to admit. Genuinely rarely should i encounter a weblog that’s both educative and entertaining, and let me tell you, you may have hit the nail about the head. Your idea is outstanding; the problem is an element that insufficient persons are speaking intelligently about. I am delighted we came across this during my look for something with this.
Thank You So Much!
After examine a couple of of the blog posts in your website now, and I really like your way of blogging. I bookmarked it to my bookmark web site checklist and might be checking back soon. Pls take a look at my web site as well and let me know what you think.
it’s cool. Keep it up!!
Some genuinely interesting points you have written.Assisted me a lot, just what I was searching for : D.
Thank for your comment!
Is there any issue or clarification?
Ask any time..
Fascinating blog! Is your theme custom made or did
you download it from somewhere? A theme like yours with a few simple adjustements would really make my blog shine.
Please let me know where you got your design. With thanks
Honestly! I made the complete appearance of my website.
It is a free theme.
IF YOU NEED ANY HELP, LET ME KNOW!
I’m really happy to help you!
Anyway, Thank you so much…
I must say, as a lot as I enjoyed reading what you had to say, I couldnt help but lose interest after a while.
Thank You So much..!
Ha, here from yahoo, this is what i was looking for.
Happy to heard it 🙂
Let’s join with my upcoming article series..
great points altogether, you simply gained a brand new reader.
What might you recommend about your put up that you just made a few
days ago? Any certain?
Definitely… You can find new upcoming series of articles.. 🙂
Thank you for commenting..
Hi there mates, fastidious article and nice arguments commented at this place, I am truly enjoying by these.
Glad to heard that. Thank you so much.. Hope you will join with my up coming articles..
I was just seeking this info for a while. After 6 hours of continuous Googleing, at last I got it in your web site. I wonder what’s the lack of Google strategy that don’t rank this type of informative websites in top of the list. Generally the top web sites are full of garbage.
Thank you for your appreciation! There is a new bundle of articles is coming soon! Stay tuned 🙂
“wow, awesome blog post. Awesome.”
Thank you so much 🙂
I wanted to put you one little note in order to say thank you once again relating to the marvelous thoughts you’ve featured above. It’s really open-handed of you in giving openly what exactly many of us could possibly have made available for an e book to help make some money for their own end, chiefly since you could have tried it if you decided. Those principles also worked to be the easy way to comprehend someone else have a similar dreams just as my personal own to realize more with respect to this issue. I am certain there are several more pleasurable opportunities in the future for those who read your blog post.
Thank you! 🙂
It’s onerous to seek out knowledgeable individuals on this matter, but you sound like you realize what you’re speaking about! Thanks
Thank you so much!
Fabulous, what a webpage it is! This website
provides useful facts to us, keep it up.
Thanks a lot 🙂
Hi there! This post could not be written any better! Reading this post reminds me of my old room
mate! He always kept talking about this. I
will forward this post to him. Pretty sure he will have a good read.
Thank you for sharing!
Thank you! please share my articles for your friends!
I constantly emailed this webpage post page to all my friends, as if
like to read it after that my friends will too.
Thank you so much!
More articles will be coming soon! 🙂
If you don’t mind, please contact our website’s admin!
http://masterphotography.info/contact-us/
Thank you for your recommendation and please keep sharing.. 🙂
Thank you so much!
At this moment I am going away to do my breakfast, once having
my breakfast coming over again to read more news.
Thank you 🙂