Pierre Williot  

 Morning Twilight at the Iroquois National Wildlife Refuge by Pierre Williot

February 2021 - Morning Twilight at the Iroquois National Wildlife Refuge

About the Image(s)

Equipment: Canon EOS 6Dii, Canon EF 16-35 f/2.8L ii, cable release, Sturdy tripod

Settings: ISO 400, 35mm (full frame), f/13, 5 bracketed images at 1/80-1/40-1/20-1/10 and 1/5th sec. (one stop between each image with mid point was a minus 2 stops)
Process: Images combined, Cropping, Lens profile correction, light adjustments in LightRoom

When I took these images I was attracted by the blue hours, different sky coloration from the sun which was still below the horizon as well as the cloud striations. Earlier on, I was quite discouraged by the very cloudy sky, but then the magic happened!

Point to discuss: I find that when I bracket the morning twilight/early sunrise, I like to under expose. I believe that this is giving me more latitude in the reinforcement of the sunlight colors catching the undersurface of the clouds. I also use the graduated filter to slightly decrease the highlights, a tad more saturation and a little less exposure. I used another graduated filter to slightly increase the exposure, whites and highlights on the bottom half of the image.


2 comments posted

Lamar Nix   Lamar Nix
To your point, from my experience the use of a graduated filter at sunrise inevitably produces a better reproduction of the sky than without the filter. Thus my experience supports your belief. It should be the case that so long as the sensor is not overloaded by the cloud highlights, one could equally well achieve the same effects in post processing. However, I find that the use of a software graduated filter , though it may come close, rarely is able to reproduce the on-camera filter.   Posted: 02/23/2021 08:33:04

Frans Gunterus   Frans Gunterus

Let me response straight to the point you want to discuss. Like you, I always shot this kind of scene with bracketed exposure. You combined 5 bracketed in LR. I would normally combine it as layers in PS. Most likely, I will choose the one that I think is the best as my base layer. I would then choose and pick other part of the image by using Mask Tool. In some situation, I use Luminosity Mask. I really appreciate your efforts to capture this image.   Posted: 02/24/2021 19:26:02


Please log in to post a comment