HI,
The texture isnt cracks - thats correct. I once upon a time was a
geologist before rurning into earthquakes. The tecture of rock e.g.
limestone, is due to - 1. The deposits (coral reef or whatever was the
basis for the limestone) are layered and when squeezed deeper into the
Earth they appear as layers in the rock. Another process which tranforms
the rock is pressure - finally it gives marble - that may also give rise
to "layered texture". Weatheringbrings forward these phenomenas. Cracks
can form around these surfaces - or due to temperature changes. And in
some places like New Zealand due to so called tectonic movements which
create earthquakes (faults and cracks is the result of earthquakes).
Cheers,
Ronald
David Mann wrote:
On Dec 13, 2005, at 6:56 AM, Bruce Dayton wrote:
What bothers me:
Just doesn't appear sharp - the walls look very detailed, but soft and
the stream rocks likewise - perhaps just need sharpening
The walls were probably quite soft anyway... limestone is a bit like
that and the texture isn't cracks. I guess it's some kind of
weathering process. The lighting was also quite diffused (cloudy
weather).
Having said that I didn't put a huge amount of effort into
sharpening. I masked out the edges of the stream rocks because of
halos and didn't come back for a second, more subtle sharpening.
Even though you worked hard on the hole, it still is pretty dark -
Velvia was probably a wrong choice here
It's quite subtle and is meant to still be quite dark. If I get the
time I might put up the "before" version later. Don't look for
detail in the middle of the hole - it's just an extra "section" on
the right.
You're correct about Velvia being a bad choice. I'm actually
surprised I was able to get anything useful out of it at all. I do
wish I'd used something else but that was what I had in the camera at
the time. I can always go back and re-shoot.
Here's another view from a medium format slide that I scanned a few
months ago.
The river rocks look a bit sharper, actually a little too sharp for
my liking.
http://www.bluemoon.net.nz/photo/printsdb/view.php?p=6
Thanks for commenting.
- Dave
