Robin Usagani
Been spending a lot of time on here!
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- Jun 6, 2010
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Ok, I just want to show a little tutorial on how to use your internal flash when you are shooting in bright daylight. I don't have that much experience with other cameras so all I know is what on my Canon 500D. For this experiment I used spot metering. I am writing this to help beginners on this forum.
First of all, your internal flash can only be shot at 1/200 sec or slower. It cannot be quicker than that. I do not recommend using a flash with aperture priority. Lets say you are using aperture priority at f/2.8. The camera automatically sets the shutter to 1/1000 sec for example. When you turn on the flash, the shutter is automatically changed to 1/200 because you are using the flash. That means you are already super overexposed right of the bat because you shoot it 5X too long plus you are adding flash!
The first photo I used aperture priority. I metered it right on the sculpture. As you can see the sky is pretty pale. But the subject is exposed pretty good.
_MG_4848.jpg by rusagani, on Flickr
Now, instead of metering the subject, I moved my center mark to the blue sky. I use manual at this point. I am keeping the shutter speed at 1/200. I changed the aperture until I move my metering bar to 0. As you can see the sky is now blue... but the subject is really dark.
_MG_4847.jpg by rusagani, on Flickr
Now finally I use the same setting as the prior setting and flip my internal flash. You can see the subject, and the background is not super bright and or blown.
_MG_4849.jpg by rusagani, on Flickr
Now if you use your built in flash, you are limited to 1/200 max shutter speed. That means with this condition, the only way you can restrict less light coming in to your sensor is by making your aperture smaller. So if you want to blur out the background, it impossible to do it in some light condition because you have to reduce the size of your aperture which will make your DOF deeper. You cant make the shutter speed any faster because you already topped it at 1/200.
If you have an external flash though, you can set it to HSS and you can set your shutter speed however fast you want until you are at the camera's limitation.
I hope this will help some of the beginners out there.
First of all, your internal flash can only be shot at 1/200 sec or slower. It cannot be quicker than that. I do not recommend using a flash with aperture priority. Lets say you are using aperture priority at f/2.8. The camera automatically sets the shutter to 1/1000 sec for example. When you turn on the flash, the shutter is automatically changed to 1/200 because you are using the flash. That means you are already super overexposed right of the bat because you shoot it 5X too long plus you are adding flash!
The first photo I used aperture priority. I metered it right on the sculpture. As you can see the sky is pretty pale. But the subject is exposed pretty good.

_MG_4848.jpg by rusagani, on Flickr
Now, instead of metering the subject, I moved my center mark to the blue sky. I use manual at this point. I am keeping the shutter speed at 1/200. I changed the aperture until I move my metering bar to 0. As you can see the sky is now blue... but the subject is really dark.

_MG_4847.jpg by rusagani, on Flickr
Now finally I use the same setting as the prior setting and flip my internal flash. You can see the subject, and the background is not super bright and or blown.

_MG_4849.jpg by rusagani, on Flickr
Now if you use your built in flash, you are limited to 1/200 max shutter speed. That means with this condition, the only way you can restrict less light coming in to your sensor is by making your aperture smaller. So if you want to blur out the background, it impossible to do it in some light condition because you have to reduce the size of your aperture which will make your DOF deeper. You cant make the shutter speed any faster because you already topped it at 1/200.
If you have an external flash though, you can set it to HSS and you can set your shutter speed however fast you want until you are at the camera's limitation.
I hope this will help some of the beginners out there.
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