Fotóiskola

Ah,köszi!

Digitális gépen az objektívre írt gyújtótávolság szorzódik egy gépre (márkára) jellemzõ állandóval, így erõsebb teleobjektívnek tûnik.

öö...ezt nemértem:70x1,3...1,6=91...112 mm
Fejtsd ki légyszi

Találtam egy tanácsot a Hold fotózására,úgy indul,hogy minimum 200mm-es obi,úgyhogy az én max.70mm-em mehet a "levesbe".

Start with a tripod and a 200mm or longer lens. Your exposure should be f/11 and a shutter speed of 1/ISO (e.g., f/11 and 1/100th of a second if the camera is set for ISO 100). The moon is illuminated by the full light of the sun, attenuated to some extent by our atmosphere. You could say the same about your friend's face on a sunny day, in which case you'd apply the "sunny 16 rule" and set f/16 and 1/ISO. Why the discrepancy? The moon is made of darkish gray rock. But we see it at night when are eyes are adjusted to the dark so it looks rather white. In order to have the moon appear white in the final image , you need to overexpose it by 1 f-stop, i.e., use f/11 instead of f/16.