Quote:
Originally Posted by Caglow
Assuming a gnat is 1mm in size, that bring it to about 10.3m away...you would be able to see something (to a certain extent) at 10.3m while focused at infinite...I think. It's a Coronado brand, as he mentioned, so aperture is 40mm to 90mm. I've never compared the different apertures of Coronados so I can't tell that. More info here: http://www.coronadofilters.com/
The movement relative to a bird or bug's relative size will always remain the same. |
There is a bird in this picture, and trees or shrubs in the foreground. The leaves of the foreground trees or shrubs are way out of focus. A 1 mm gnat wouldn’t show up. It would be too blurred.
http://www.coronadofilters.com/Maxscope_70.html
However, let’s think of this bird as having an insect in its beak. How about a grasshopper? The grasshopper would be in focus, but it would be larger than a gnat and smaller than the bird.
Here’s a Solarmax photo. Imagine a small bird flying from the treetop on the right, across the top of the house.
http://www.coronadofilters.com/images/CaK_001.jpg
Another Solarmax bird:
http://www.coronadofilters.com/Quick...arMax70CaK.jpg
So, if the image in question is an insect, I think it would have to be as large as a grasshopper, or some kind of flying beetle.