Posted by: Juggy March 26, 2008
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Refer here for what HDR is --> High Dynamic Range Imaging
For producing a HDR image, you should take three or more exposure of same image WITHOUT moving a camera. If you move your camera when taking the three consecutive images then you will get ghosting effects! Normally, Higher levels of DSLRs have bracketing feature which allows you to take three consecutive exposures without manually changing EV each time. Check if your camera model has one or not!!
So for a Nikon D80(which I use), Here is a small tutorial to generate HDR image.
A)Taking Images
1) Always remember to take a tripod to take ur HDR images. This helps to keep your camera fixed for many shots you will be taking.
2)Select a good spot and enough light to get your image.(I don't suggest dark days to take HDR image as HDR image are used to give more details to the pictures and on dark days, you won't get too much details).
3) Select your camera to Manual(M) mode.
4) Normally High edge camera has (bkt) button for auto bracketing. If you have Nikon D80 it is just below the flash button. Press this button and scroll ur main wheel/sub menu wheel to select number of frames (...F Value) and EV spacing (values after F on). I usually take three frames in +/- 2 EV spacing. This normally covers all dynamic range.
5) Focus your camera to your object. If you used auto focus for focusing on the object, then after focusing, turn it into manual so focus won't chage in between these three frames.
6) Through the view finder you can see your exposure value, adjust it using the scroll wheel until the camera thinks it’s appropriate. i.e. until you see something like below.
+_ _ _|_ _ _ -
5) Now take three exposures of your pictures. and you are all set to get your HDR image.
B) Post processing
To generate a HDR image, you can get lots of software which generates HDR image. I used Photomatix pro 3.0 to generate my images. It is simple program used to generate HDR images which has simple tutorial with it.Now you combine these three images in this software and tone map according to your preference to produce your HDR image. I also use photoshop CS2 for tone mapping. Enjoy the HDR imaging. I am just a starter in this and shared what I know. If anybody can add on please do so, I can always learn a thing or two!!
For producing a HDR image, you should take three or more exposure of same image WITHOUT moving a camera. If you move your camera when taking the three consecutive images then you will get ghosting effects! Normally, Higher levels of DSLRs have bracketing feature which allows you to take three consecutive exposures without manually changing EV each time. Check if your camera model has one or not!!
So for a Nikon D80(which I use), Here is a small tutorial to generate HDR image.
A)Taking Images
1) Always remember to take a tripod to take ur HDR images. This helps to keep your camera fixed for many shots you will be taking.
2)Select a good spot and enough light to get your image.(I don't suggest dark days to take HDR image as HDR image are used to give more details to the pictures and on dark days, you won't get too much details).
3) Select your camera to Manual(M) mode.
4) Normally High edge camera has (bkt) button for auto bracketing. If you have Nikon D80 it is just below the flash button. Press this button and scroll ur main wheel/sub menu wheel to select number of frames (...F Value) and EV spacing (values after F on). I usually take three frames in +/- 2 EV spacing. This normally covers all dynamic range.
5) Focus your camera to your object. If you used auto focus for focusing on the object, then after focusing, turn it into manual so focus won't chage in between these three frames.
6) Through the view finder you can see your exposure value, adjust it using the scroll wheel until the camera thinks it’s appropriate. i.e. until you see something like below.
+_ _ _|_ _ _ -
5) Now take three exposures of your pictures. and you are all set to get your HDR image.
B) Post processing
To generate a HDR image, you can get lots of software which generates HDR image. I used Photomatix pro 3.0 to generate my images. It is simple program used to generate HDR images which has simple tutorial with it.Now you combine these three images in this software and tone map according to your preference to produce your HDR image. I also use photoshop CS2 for tone mapping. Enjoy the HDR imaging. I am just a starter in this and shared what I know. If anybody can add on please do so, I can always learn a thing or two!!