Thank You. But the 42° rule/calculation does not apply (or maybe not the same way) on the rainbow picture of the upper fall in the morning as it does on the lower fall before noon.by Enny - General Discussion
The calculations for the rainbow at lower Yosemite and upper Yosemite fall are different as in one case the azimuth changes more during the time the rainbow is visible and at the other case it changes only less than a couple degrees. The lower yosemite fall case is the more obvious and easy calculation but the one for the upper fall is more difficult to understand. Was for the upper fall the angby Enny - General Discussion