Like I said yesterday, I went out over Easter with the attitude that I would try some new things and experiment with some stuff I'd heard of over the past few months.
One of the things I did was to set my camera to do some auto exposure bracketing (AEB)*. For those that don't know, or got bored before that part of the manual (and who can blame you), AEB on your camera sets it up to take three photographs. The first is at the exposure you select, the second is under exposed and the third is over exposed. The amount of over and under exposure is up to you.
It's a useful facility for shooting landscapes and other static scenes and allows you to do things in post processing like tweak some levels or replace an over exposed sky (kind of the same way you might use an ND filter I guess). Whilst not a great example, the picture I took of the Rock of Cashel used the effect - basically the sky was cloned from an under-exposed version of the shot.
Anyhow, I took a range of pictures of a life buoy on Dungloe pier as I really liked the colour against the stormy sky.
The image I got was OK.
(1/15, F/4.5, 22mm, ISO - 100, 23/03/2008)
In itself, I guess the image isn't bad. It's probably better than stuff I took 6 months ago, and I'm happy enough with it. But as usual, I got to playing around and remembered a technique a bluegrass loving bloke I work with told me about called HDR.
HDR, or High Dynamic Range, is a process which allows more tones in an image than would be usual. Essentially shadows are reduced and highlights less blown out... or something like that... Essentially it takes a range of exposures of the same image and mixes them up to produce an interesting composite. Here, let wikipedia explain....
Well, I pushed my three exposures of the life buoy through an HDR engine and got what I think is an interesting result. I'm actually kind of taken with it, so expect more HDR type images soon!
*For those of you with Canon 400D's and who can't be bothered reading the manual, the AEB setting is on the second menu tab. It's worth noting it resets every time you power off the camera, change a lens, etc etc etc... Also, it behaves differently when using remote or timed release of the shutter. It is worth playing with though...
Oh, and the astute will notice that the HDR image is number 1 and the original number 2. Nothing sneaky, just the sequence number that was added when I exported the pictures for upload..... Honest!