Persiguiendo la luna

Aunque ya ha pasado la luna llena tan anunciada en la prensa días atrás, no os preocupeis. Todos los meses, repito todos, hay luna llena. Si el cielo lo permite, ni siquiera notareis la diferencia con la de estos días pasados.

En la playa de Arra, conceyu de Ribeseya, disfrutamos de una noche excepcional y cuyo resultado es una de mis mejores fotografias. Que la disfruteis

Playa de Arra, Ribadesella

Playa de Arra, Ribadesella

Teneis por la red, decenas de manuales sobre como hacer fotos de la luna, asi que no me extiendo. El problema viene dado cuando no queremos un primer plano sino incorporar la luna en nuestra composición. Una luna llena tiene muchisima luminosidad por lo que usando una medición normal, la luna va a aparecer como el sol, quemada. Una gran mancha blanca sin detalles y un paisaje que no sabemos si es de dia o de noche. ¿Como solucionarlo? fácil. Hay que tomar dos fotos y luego montarlas. No hay otra solucion. Os copio el texto de una web muy sencilla

6) How to take a picture of the moon with a foreground object?

Let’s now move on to how you can take a picture of the moon together with a foreground object – whether it’s a tree, a house or a large rock. As explained here, the moon will always look overexposed after sunset in comparison to everything else. The only way to capture the scene with the moon properly exposed, is to take two separate shots of the scene – one with the foreground properly exposed and the moon overexposed and one with the moon properly exposed and the foreground objects heavily underexposed. Take a look at the following two shots:

Moon overexposed Moon properly exposed

As you can see, I shot the above two images in two separate exposures – one with foreground properly exposed, one with the moon. Here is the combined shot that I did in Photoshop in just 2 minutes:

Combined shot

NIKON D700 @ 420mm, ISO 200, 1/3, f/7.1

The above example is not the best one in terms of subject and composition, but it gets the message across – you will need to combine two exposures to create a single image. The toughest part is to properly mask out the moon and to transparently merge the darker edges of the moon with the blue sky, which should not be a problem if you know how to use the right tools within Photoshop. If the sky is equally dark in both frames, then the amount of time spent in Photoshop is minimal – all you would need to do is copy-paste the moon and you are set!

 

 

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