The Magic Of Punta Aderci by Luca Libralato: stacking of 2 x 260 second exposures for a total of 520 seconds (8:40 min) Step 1: Gear If you want to maximize the probability to not miss the right moment in a fast changing light (the right moment can last few seconds, if you are exposing for several minutes, you can miss it for wrong exposure time for example).With hostile ambient/weather conditions, you can use this technique to minimize the risk of wasting exposure time.Since this techniques is based on the sum of several short exposures, you can easily decide later how long the final exposure shall be (check also here for a similar approach: Long Exposure Photography Without a Tripod). If you are not sure about the final result of a very long exposure.If your camera sensor is adding a lot of digital noise due to overheating.If you want to push the exposure time to some really high values.If you are a purist – you may not like this technique.Some post-processing skills are required to blend the several exposures.You don’t have a single exposure and this is something which some competitions/contests rules don’t like.Manarola by Luca Libralato: stacking of 3 x 260 second exposures for a total of 780 seconds (13 minutes) The disadvantages are: Possibility to decide later on the strength of the long exposure effect.Minimize the risk of wasting time and photos (tripod shocks, sudden light change, etc.).Reduce vignetting (you will be using a lower ND power per shot with this technique, resulting in less vignetting).Reduce digital noise and hot pixels (shorter exposure pictures have less digital noise and hot pixels).The advantages of using this approach are several: The step by step guide will be focused on landscape photography.
This technique is mostly useful, and recommended for landscape photography, but some of the benefits may also be used in other types of photography, where you need maximum quality with several minutes of exposure.
Here is the quick explanation of the Long Exposure Stacking technique: by taking several pictures (usually at least 30 seconds each for the purpose of this technique) you can blend them to get a result the equivalent of a long exposure photo with a total exposure time equal (or almost equal) to the sum of the single exposure frames. If you love long exposure photography and you would like to push the exposure time to the edge, this technique of long exposure photo stacking is for you. Venezia by Luca Libralato: stacking of 3 x 260s exposures for a total of 780s (13 minutes)
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