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Lime Ridge Open Space
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PostPosted: Wed Jun 22, 2011 7:10 pm    Post subject: Lime Ridge Open Space Reply with quote

Lime Ridge is a reasonably accessible place to take photos. Easy hike, passably interesting scenery. So I'm going through the thousand-or-so photos I've taken there this year for various lens tests. Here are a few that stand out as modestly above average.


Prickly little guy. 50mm Sigma macro lens at about four inches (can focus to about an inch.) That's some kind of weed. The red vein in the middle of the leaf was about 1 cm wide, maybe a bit less.


Took this with the 400mm Vivitar I bought last weekend at about 50 feet (15.25 meters)


One of many hills in Lime Ridge. 28mm lens panorama stitched together from eight photos.


That's where the affluent people live. So... that's NOT where I live. 28mm lens panorama stitched together from six photos.


Why is that valve in the middle of a field?!?


PostPosted: Wed Jun 22, 2011 8:14 pm    Post subject: Reply with quote

interesting panoramas - where is it ?
the upper one has dark and light parts in the blue sky, which look like vignetting, but in a panorama this is impossible - so how does this come ?


PostPosted: Thu Jun 23, 2011 1:34 am    Post subject: Reply with quote

I to am curious about the valve in the field.


PostPosted: Thu Jun 23, 2011 1:45 am    Post subject: Reply with quote

@Thomas: Not entirely sure. The darker stactites of blue are typically over larger land areas, so it could be a factor of how the sensor interprets coloration across the entire sensor area. However, it also happens in sections of sky at right angles to the sun, so it could be a function of how the lenses receive light. I need to try that with and without a sun shade.

@mmelvis: So am I. There are a number of old pipes in the open space. Based on the pipe corrosion, deformation, and bending, I hope that none are in use. But they all look like water pipes. I'll get some more photos of the pipes next time I go. There are ones just poking out of the ground with blinded-off flanges. They were clearly sealed for under-pressure use since most have two nuts on them with three full threads protruding behind the second nut. However, the visible gaskets are all severely deteriorated.


PostPosted: Thu Jun 23, 2011 2:01 am    Post subject: Reply with quote

A polarizer could have the effect on the blue sky. Don't know if you were
using one or not.

That may be an affluent area of homes, but they are certainly crowded
together! Shocked


PostPosted: Thu Jun 23, 2011 2:01 am    Post subject: Re: Lime Ridge Open Space Reply with quote

David wrote:
[...] Why is that valve in the middle of a field?!?


As a child I remember visiting a few of the many walnut orchards that used to be in that area -- it's named Walnut Creek for a reason! Laughing Looks like a valve in orchard-size irrigation system.


PostPosted: Thu Jun 23, 2011 2:58 am    Post subject: Reply with quote

@Laurence: No polarizer. I learned my lesson on my trip there a month ago. All the sky shots stitched together like multi-colored puzzle pieces. The result was AWFUL. Total waste of a day, except that I learned to never use a polarizer when stitching photos. And yes, Clayton is pretty wealthy. I couldn't stand to live that close to my neighbors, though. I don't need to know their business.

@visualopsins: That makes a lot of sense. Also, many of the AST reservoirs around here are on hills. I haven't seen an AST up there, nor any residual footprints left from years of water weight. But it might by worth a closer look. The piping all points downhill.


PostPosted: Thu Jun 23, 2011 1:34 pm    Post subject: Reply with quote

David wrote:
@Laurence: No polarizer. I learned my lesson on my trip there a month ago. All the sky shots stitched together like multi-colored puzzle pieces. The result was AWFUL. Total waste of a day, except that I learned to never use a polarizer when stitching photos. And yes, Clayton is pretty wealthy. I couldn't stand to live that close to my neighbors, though. I don't need to know their business.

@visualopsins: That makes a lot of sense. Also, many of the AST reservoirs around here are on hills. I haven't seen an AST up there, nor any residual footprints left from years of water weight. But it might by worth a closer look. The piping all points downhill.


iirc some of that irrigation equipment is still in use, seen along the lower part road from WC to Mt. Diablo, before it begins uphill.

Clayton used to be a very charming small town. There is a dirt road from there to Black Diamond. I used to drive that way instead of over the pass to Pitts. Very Happy Very scenic the road from Clayton along the eastern foothills of Mt. D..