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has recently started "Nature Photography Tips" news articles, and they are submitted once every 2 weeks
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1- The blog. It is where we announce the topic and where we collect information about the topic from you. Anyone can share with us what they know about the topic in the blogs.
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"Understanding the ISO"
Here is a small description of the topic:
After understanding the Aperture and Shutter Speed and knowing how to use them, it's time understand what the ISO is, when to use it, and how it is related to the aperture or shutter speed.
If you missed the news article about the Aperture and Shutter Speed, then here it is: [link]
Here is what you shared with us:
What is the ISO ? It is how sensitive the image sensor is to light. The ISO is expressed in numbers (50,100,200,etc..). As you increase the ISO, the sensitivity to light increases, allowing more light to enter the lens.
When is the ISO used ? When you dont have a tripod, and you want to shoot in dark places, increase the ISO speed to pick up every little speck of light available. However, only increase the ISO speed when you are forced to increase it, otherwise try to avoid it.
Is it recommended to have a high ISO ? Of course it's not ! The disadvantage of high ISO is the noise you'll get. The noise is when pixels appear in your photo. It happens because the high sensitivity makes the sensor warmer and that's a hard working condition for the sensor.
ISO in indoor places: Imagine you dont have an external flash, or your flash ruins your photos, or you cant use your flash. You are in a room where the lighting isn't perfect, or you are possibly away from your target. What do you do ?
Increase the ISO speed a little (how much to increase it depends on your camera). The result is that the noise will be minimal and can be removed through processing, and your photos will not be dark.
ISO and Shutter Speed: If you are in a dark place, and you decide to increase the ISO, then you should increase the shutter speed (faster speed). Why ?
Simply because when you increase the ISO, more light enters the lens, so this means you can have a faster shutter speed, and extra light is not needed.
In other works, let's assume an ISO: 100 and a shutter speed: 3 seconds gives you a great photo with great lighting. If you decide to increase the ISO to 300 for example, you will need to increase the shutter speed to 1 second to have a great photo again. Otherwise, your photo will be over-exposed.
The information in this news article was collected from those members. Thanks for participating:
We hope you have benefited and learned from this news article. We will announce the next photography tip in a blog after a few days. I hope more members participate
Founder of #SkyAndNatureClub,