Monday, July 25, 2011

Tip Number Two: How to use ISO to Your Advantage

Let's say you are at a concert, museum, or possibly even at your son or daughter's grand debut and you want to take some nice pictures.  Unfortunately, the room is pretty dark and flash photography is not allowed.  You take some pictures, but the shots keep coming out blurred or out of focus.  So what can you do?  In this situation, setting your camera to a higher ISO may help you get some better shots.

The way to do this:
1.  Take your camera out and find the button that says ISO.  
2.  Press the ISO button and you should see a list of numbers come up (100, 200, 400, etc).  
3.  Scroll through the numbers and choose the ISO that best fits your lighting situation.  Generally speaking, you want to use ISO 100 to 200 when you are taking pictures outdoors and ISO 400 to 800 when you are inside or in the shade.  

Be weary of using too high an ISO:
Your camera may allow you to change your ISO to as high at 6400, but beware, because the higher your ISO, the “noisier” your pictures will be (the noise looks like grains on your images).  A picture can be worth a thousand words, so I took pictures of a candle and some pebbles in a low light situation to help you understand how changing the ISO will affect your images.  See pictures below. 











As you can see, increasing the ISO helped me take a clearer picture of the candle and pebbles.  However, increasing it to 3200 was a little too much because my picture came out quite grainy.  In this case, I would stick to using either ISO 800 or 1600.

Remember, changing the ISO can be very useful if there is not enough lighting in your environment and flash is either undesired or not allowed. However, every camera is different and some cameras handle noise better than others at higher ISOs.  I recommend that you take some images under low light with different ISOs.  Then upload the images to your computer (you may not be able to see the grain from your camera's LCD screen) and determine the highest ISO your camera can handle and avoid passing that ISO.

*Note: In low light situations, and you have a dSLR, you can also use a bigger aperture to try and get a better picture.  You can also try to use a slower shutter speed for non-moving subjects if you have a tripod.  More on those topics later.  

  

Wednesday, July 20, 2011

Tip Number One: Format Your Memory Card Regularly!

Have you ever scrolled through your memory card and see big question mark images and wonder what happened to your pictures?  I don't know about you, but I never formatted my memory cards when I began taking digital pictures, and I saw these question marks all the time!

Formatting a memory card clears everything on the card so that it is ready for reuse, and is as good as new.  Every time you erase pictures, whether individually or all together, remnants of your images are left behind.  After a while, these remnants build up and your card becomes corrupt and your computer is unable to read the card.  The result is that you can lose many precious memories recorded in that memory card.  Sooo, this is what you need to do often.  Some recommend at least a few times a year, but I do it every time I upload pictures to my computer.

Every camera is different.  But these are the basic steps.
Steps:
1.  Upload all your images to your computer and back up all your images.  Once you format your memory card, everything on the memory card is gone and lost forever.
2.  Format your memory card through your camera and NOT your computer!  Your computer may format the memory card in a way that is not readable to your camera.  So keep it simple.  Leave your memory card in your camera and let it do the work.  
3.  Look at the menu in your camera and erase all your images (I don't think this step is necessary, but I do it anyway).
4.  Scroll through the menu options until you see "format."  (For Canons, it's under one of the orange-brown tools tab).  Choose that option, confirm it, and you are done!  The whole process takes less than a minute.  Below are links if you want to learn more.