Why is the sky so different in these two shots?

[Carol]

Something I haven't been able to figure out. Why does the sky look so different with the use of an outdoor fill flash? These were taken with my Powershot...not with a DSLR.

The top photo -- with the pale blue-gray sky -- was taken with no flash.

The bottom photo -- with the deep blue sky -- was taken with the flash.

The photos are SOC, taken 10 seconds apart in the early morning.

 

[Tanaka]

My guess is because maybe the flash causes more light to bounce off the objects closer(which causes them to illuminate more), while blocking light from objects further away. So the light reflecting off the air from the sun isn't as present in the shot.

I don't know lol.

 

[Haakon]

Second shot is underexposed compared to the first shot. Take a look at the EXIF data, you'll probably see the second one probably has a lower ISO or lower shutter speed (or both).

 

[Carol]

Second shot is underexposed compared to the first shot. Take a look at the EXIF data, you'll probably see the second one probably has a lower ISO or lower shutter speed (or both).

That's exactly it! There's a marginal difference in ISO...big difference in shutter speed. Top photo is 1/8 sec , bottom photo is 1/60 sec, both F2.8 0EV.

Thank you very much :asian:

 

[Haakon]

Glad to help, although I did get the shutter speeds switched. I should have said the second one has a lower ISO or higher shutter speed (or both) to get the lower exposure.

Exposing for a light sky and dark subject can be tough!