Pretty good. That's hard to do. Based on the size of the images I'm
guessing you were shooting from distances of about 12-25 feet. My handy
DOF calculator tells me (for an 8" high print) that the DOF is only
about 1/2" at 12 feet and about 2-1/2" at 25 feet. But for a 4" high
print the DOF is about 1" at 12 feet and 4-1/2" at 25 feet. As I said,
hard to do.
I once tried my 2000mm Celestron 8 at its closest focus of 25'. Once
was enough. :-)
Chuck Norcutt
Dan Mitchell wrote:
> Insects, you say? So, presumably, I'd be using a macro lens, right?
> Ah, but insects, they're such skittish things -- they always fly away
> when I get near to them. Solution: use a 500/8 mirror lens..
>
> http://www.danielmitchell.net/gal/Things/Bug_Hunting_For_Dummies
>
> It's surprising how good the results are. Sure, they're not _awesome_
> results, but under the circumstances, the fact you can see the facets of
> his(?) eyes is pretty gratifying.
>
> Oh, and to add to the fun, this is on a E-330 focussing through the
> viewfinder (ie no split-image/microprism to help out), because while
> Live View is great once the subject's in view, if I can't _find_ the
> subject, it doesn't help, and I can't aim worth a damn with telephoto
> lenses using the screen, the body language is all wrong.
>
> (and of course with DoF of about three inches, if focus isn't spot on,
> there's not even any way to work out what the screen's looking at, it's
> just a mysterious blur).
>
> -- dan
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|