Views of Crepuscular Rays

August 04, 2013

CrepPortIMG_6771_es (2)

CrepHungDSCF1876 (3)

Photographers: Zsuzsanna Agnes Nagy (bottom photo); Nuno Lopes (top photo); Nuno's Web site
Summary Authors: Nuno Lopes; Zsuzsanna Agnes Nagy; Jim Foster

The two photos above show views of crepuscular rays over Lisbon, Portugal (top) and Polgardi, Hungary (bottom). They were taken near sunset on July 8, 2013 and July 7, 2013, respectively. Though the most dramatic displays of crepuscular rays are usually observed when the Sun is tucked beneath the horizon, attention-getting rays can be seen when the Sun hasn't yet set, as is the case above. Clouds with vertical development, convective clouds as in the bottom photo, generally result in the most remarkable rays. Note that perspective is responsible for the convergence of the rays.

Photo details: Top - Camera Model: Canon EOS 550D; Lens: EF-S18-55mm f/3.5-5.6 IS II; Focal Length: 37mm; Aperture: f/8.0; Exposure Time: 0.0040 s (1/250); ISO equiv: 100; Software: Adobe Photoshop Lightroom 4.4 (Windows). Bottom - Camera Maker: FUJIFILM; Camera Model: FinePix HS20EXR; Focal Length: 35.4mm; Aperture: f/5.6; Exposure Time: 0.0040 s (1/250); ISO equiv: 100; Software: Digital Camera FinePix HS20EXR Ver1.03.