Just playing around...
From across the room, 15 feet. Not zoomed at all, so 200mm:
Some lightning bugs, wide open at f/4 and 25sec:
Some lightning bugs, wide open at f/4 and 25sec:
From the deck, probably 15 feet away, zoomed all the way to 400mm:
just a crop, not a new picture:
Another "stuff in my yard" probably 30-40 feet away:
So here's the comparison of 300mm on the 70-300 lens, and 400mm on the 200-400 (red box is field of view):
400 is 25% bigger than 300, so a first level approximation would say that the field of view should be 25% smaller this seems to be true, when comparing the measurements of the two pictures. Learn something new everyday, I guess.
I think I actually had a dream about this lens. This morning I remembered what the dream was, but now I can't recall it. I can't even remember if it was good or bad.
Another "stuff in my yard" probably 30-40 feet away:
So here's the comparison of 300mm on the 70-300 lens, and 400mm on the 200-400 (red box is field of view):
400 is 25% bigger than 300, so a first level approximation would say that the field of view should be 25% smaller this seems to be true, when comparing the measurements of the two pictures. Learn something new everyday, I guess.I think I actually had a dream about this lens. This morning I remembered what the dream was, but now I can't recall it. I can't even remember if it was good or bad.
~~END~~
1 comment:
Regarding focus problems, I read about locking the focus if the target is staying roughly at the same distance. Thus, allowing for quicker shots. I can't remember if you lock it on the body or the lens.
Daddeo
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