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Jingy
Social climber
Nowhere
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Feb 15, 2010 - 03:52pm PT
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beautiful photos..
Ed - Great horsetail shot there....
Appreciate that there are folks who have the time to get these photos..
Thanks both the OP and Ed for the horsetail shots.
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tuolumne_tradster
Trad climber
Leading Edge of North American Plate
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Feb 15, 2010 - 08:54pm PT
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Showshoed out to Dewey Pt on Sat Feb 13 for this pano.
Took this sunset pano at the Tunnel on the road to Badger Pass.
Sunday hiked out to Mirror Lake Meadow for this shot. Just as I put my camera & tripod away a large slab avalanche broke loose from the summit above the right end of the black water streaks. I didn't have a watch with me but it was probably around 3 pm. Anyone else see it? It was preceded by a loud rumble that sounded like rock fall by about 5 minutes.
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Ed Hartouni
Trad climber
Livermore, CA
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Feb 15, 2010 - 09:15pm PT
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nice images tradster!
the Half Dome image corrected for camera tilt:
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Ed Hartouni
Trad climber
Livermore, CA
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Feb 15, 2010 - 09:25pm PT
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does anyone know what the heli evac was about? here it is leaving around 1630 yesterday
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tuolumne_tradster
Trad climber
Leading Edge of North American Plate
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Feb 15, 2010 - 09:37pm PT
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Ed: I'm curious how you corrected the image. My camera was on a tripod on a rough but more or less level gravel surface. I didn't adjust the legs of the tripod to try to level it. The camera was tilted upward and I was using an 18 mm wide angle lens. I see that the tree is vertical in the corrected image. Are you removing the distortion created by the wide angle lens or because I didn't have the camera horizontal or both?
I did a Google search and found this...
http://www.photos-of-the-year.com/articles/barrel-distortion/
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Ed Hartouni
Trad climber
Livermore, CA
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Feb 15, 2010 - 09:44pm PT
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for camera tilt... in your image the trees are pointed in because the plane of the film is tilted off of vertical... in Photoshop you can select the entire image, go to Edit>Transform>Perspective and then pull a bottom corner in towards the center of the image... usually I watch the trees, and when they are parallel I've got most of the tilt out...
the barrel distortion can be taken out too, it depends on your lens but the lens parameter are probably known if it is a standard lens.... I didn't do that because I don't know what lens you're using...
here is one with my camera of the East Buttress of El Cap:
FujiFilm S5 Pro, Nikon 18-125 mm f/3.5-5.6, at 18 mm focal length, f10 aperture, 1/125 s exposure
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Ed Hartouni
Trad climber
Livermore, CA
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Feb 15, 2010 - 11:42pm PT
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hey ryankelly, heard you up there on Direct, sounds like you were having fun!
It was absolutely perfect weather for being up there on Sunday, probably today too...
That is Cascade Creek...
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Buju
Trad climber
the range of light
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Feb 16, 2010 - 12:16am PT
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last saturday/sunday....climbed both silent line and the gold wall. 2 amazing climbs in AMAZING weather!
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C4/1971
Trad climber
Depends on the day...
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Feb 16, 2010 - 12:41am PT
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Nice images all!!!!
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ryankelly
Trad climber
sonora
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Feb 16, 2010 - 02:10am PT
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Nice photos from Gold Wall.
Ed...thanks for the info. Cascade Creek. I was admiring the Horsetail falls Sunday evening. Awesome to see pictures of it on here. Thanks for sharing.
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Fluoride
Trad climber
Hollywood, CA
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Feb 16, 2010 - 09:34am PT
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Great pics guys!! Thanks for sharing.
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drljefe
climber
Old Pueblo, AZ
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Feb 16, 2010 - 11:20am PT
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Thanks for all the killer shots....they're getting me amped for my trip there at the end of March.
Hope I score those kind of days.
Predictions from the locals?
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scottpedition
climber
One valley or the other
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Topic Author's Reply - Feb 16, 2010 - 11:36am PT
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Loving all the stellar shots and knowing that everyone was enjoying the great weather! We saw cars at the woodyard and suspected someone was loving the Gold Wall -- it was a perfect weekend for it.
Dewey Pt was on our list as well, but by the time we got moving that direction, the road to Badger Pass was already closed. Seemed like the road conditions hotline didn't really know what to say "and Badger Pass Road is closed due to... um... uh... because it is FULL".
We saw the evac, but no idea what it was for. When we first saw it, seems like it was way back towards Curry Village, so I'm no sure where the pick up was.
Anyway, here's the last two pics I had...
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top step
Trad climber
Sunnyvale, CA
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Feb 16, 2010 - 01:46pm PT
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First trip of the year! Started out every morning with an amazing view:
Spent most of the time down at the Cookie in the what felt like 70 deg temps. Got really toasty in the corner next to Red Zinger. On Valentine's Day, headed up to Badger Pass for a trip to Dewy Point with no idea what we were getting ourselves in to. After 30 min of waiting for parking, we joined the hoards out on Glacier Point road. Did manage to find a little bit of solace on the ridge trail:
Enjoyed lunch on the point:
Back to the Cookie, hanging out near the river:
It was so warm I forgot what time of year it was and took a (partial) dip in the river! Refreshing/numbing.
On the way home, decided to check out Old Priest Cafe:
Awesome food to end an awesome weekend!
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scottpedition
climber
One valley or the other
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Topic Author's Reply - Feb 16, 2010 - 02:27pm PT
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Hey Top Step, that looks like a great weekend. Thanks for sharing! Gotta love a long weekend where you have t-shirt and shorts climbing days bookending a cooler day hiking on the snowpack.
Ed: thanks for pointing out Edit->Transform->Perspective. I had been trying to use Filter->Distort->Lens Correction->Vertical Perspective, which was leaving thing short and fat, although with vertical lines.
Any idea what the difference is? I can't seem to get the same effect with Lens Correction, no matter how I fiddle with it (so I'll use Transform now).
Scott
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TLloyd-Davies
Trad climber
Santa Clara, ca
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Feb 16, 2010 - 02:42pm PT
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Weather was glorious this weekend, I took a friend of mine out who had never seen snow or the Valley this weekend. Weather was great enough to run around in light jackets (and tshirts in the sun) and still enough snow to play in if you looked.
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Ed Hartouni
Trad climber
Livermore, CA
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Feb 16, 2010 - 03:34pm PT
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The corrections for various optical effects is very interesting... and it matters just what you are trying to convey in your image, sometimes distortions help in the telling of your particular story.
Yosemite is also difficult in that the narrowness of the Valley, and the limited clear sight lines and the scale of the object all conspire to make things difficult... in particular, we have the prescriptions of Ansel Adams, but he was discouraged from getting too technical in his books, probably because the audience was perceived to be more "artistic" then "technical."
For my photography, which is mostly with a hand held 35 mm camera, detector plain tilt is by far and away the largest distortion. While Adams cautions the photog to have a level tripod, I'm not sure he emphasizes that this is to make the film plane vertical, as it would be in a view camera. In those cameras, you can tip the lens and keep the film vertical...
...tip lenses are also available for 35 mm cameras, mostly for architectural photography... but my guess is that digital manipulation of images is now sophisticated enough to make these corrections in software...
Lenses are designed to take out most of the really objectionable distortions. They are not perfect, and there are sophisticated models for doing this based on parameters characteristic of particular lenses. You can by software to do this, which basically has a library of commercially available lenses for making these corrections. This software also allows you to determine a correction for a lens not in the library, many of the lenses I use, primes, are not in these libraries.
The major issue here is for wide angle lens images which will make straight lines curved. This can be a distraction in images with very regular lines... but the effect is harder to discern in images with irregular edges... I don't usually correct for these, but most of my wide angle images are taken with the Nikkor 24 mm f2.4 lens which doesn't have a lot of distortion. Sometimes when the shots are close and inside a building some lens correction makes the image look better.
Maybe Peter Haan can talk about this too, he seems to have been seriously playing around with these corrections.
The "perspective" corrections are rotations in 3D... the lens "corrections" are higher order polynomials that take out the effects of the lens, which are primarily spherical expansions of the images around the lens axis.
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tuolumne_tradster
Trad climber
Leading Edge of North American Plate
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Feb 16, 2010 - 06:52pm PT
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Mike: glad someone else witnessed the avalanche off HD on Sunday. It was an awesome sight and sound. Where were you when it happened?
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The Alpine
Big Wall climber
Tampa, FL
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Feb 18, 2010 - 12:00pm PT
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Pics?
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Let us know!