Tips for Shooting HDR

Started Sep 30, 2012 | Discussions thread
DuncanDovovan Senior Member • Posts: 1,277
Re: Tips for Shooting HDR

The problem with HDR is that you shoot multiple pictures for example -3 EV, correctly exposed and +3 EV. If the middle shot is 1/500, then the 2 others are 1/60 and 1/4000. This can be done by hand and takes less than a second to shoot.

If light becomes dim and the middle exposure is 1/60 for example, the others are 1/8 and 1/500. This becomes an issue, because 1/8 will be difficult to hold steady. Also, taking the 3 exposures all together takes more and more time. So you run the risk of not getting the framing right for all 3 and subjects moving in between shots.

If the 3 pictures do not exactly show the same, ghosting can occur. This means a person appears on a picture and not on another. The HDR algorithm shows parly the person and parole what is behind from another picture where the person did not appear at exactly that location.

Good HDR programs can try to avoid ghosting. But they are not perfect.

Best you go for a subject without moving details.

There is also a trick is you go for manual HDR. You take every shot say 10 times. So for a 3 exp. HDR you take 10 + 10 + 10 = 30 exposures. In photoshop you can merge the 10 shots so that only the static content remains. People are magically removed! I have done this in churches for example. The remaining 3 exposures are then processed with an HDR program like Photomatics HDR.

If you have been shooting mainly JPG and in-camera HDR, you could also try to shoot RAW and the post-process the RAW. RAW contains a little more space to squeeze out details in the whites and blacks.

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