A useful utility to calculate the focus point on para tools Hidden Content: **Hidden Content: Content of this hidden block can only be seen by Gold Members(click for instructions) after they click 'Like'.**
The "focus point" has nothing to do with photography. That's the parabola focus point, that's mathematics man, beautiful but totally unrelated with photography
OK. then you might state that in your post. and if it is unrelated to photography, perhaps post in Other forum
"Ikngood, I'm not the original poster, I'm just remarking how inappropriate is the post by making clear that focus point is a mathematical term
Hey guys,, of course it’s relayed to photography (too) -meaning the focus point of a parabolic light shaping tool - the point that rays of light travels parallel, and of course it’s mathematics