26 August 2007

Photomatix Demo

Earlier in the summer, Kevin and I got a chance to see digital photographer George Lepp give a free talk down in Loveland. In the talk, he mentioned a piece of software called Photomatix. This software takes a number of images with different exposures and combines them together. Here's an example from some sea caves at Owen Point on the West Coast Trail.

The exposure of this photo was 1/200 at f8. This shot, along with all the others, was taken on a tripod- a necessity to use this program. Clearly this shot is too dark. The archway of rock is completely in the shadows. About the only part of this picture that is correctly exposed are the hills across the bay.
I then started shooting the same scene at the same aperture, but with a longer exposure, at increments of 1/3 a stop. Here's an example from the middle of the series - 1/3o second. Note that in this shot the background is already completely blown out. Some of the foreground looks good, but there are also extensive shadows.
The last shot in the sequence is below. Shot at 1/4 of a second, the details in the rock arch are clearly visible, but the background is completely overexposed.
Remember of course that the exposure range of the human eye is much more than a digital sensor (or film for that matter) can record. My eyes didn't see any of the scenes above. I could see the details in the arch, and the opposite shoreline at the same time.

What did I see? Well, I loaded the series of pictures into Photomatix. I fired it up with all the default parameters and came up with this:
I haven't played around with any of the options yet. I suspect that if I remove some of the more overexposed photos in the series I could tone down the "glow". And paying $99 for the real version will let me get rid of the watermark that the free trial version adds to the result. But for now, I'm just stunned...

Full Moon Hike

Dorinna's second naturalist hike was a full moon hike in June (*). The full moon fell on the same Friday that school ended. We weren't really sure how many people to expect, but the number far exceeded anyone's expectations. 53 people came for the three mile hike! I'm fairly certain this is the highest number at any county naturalist program ever.

The theme of the hike was "moon myths", and Dorinna spent weeks beforehand gathering and memorizing the legends of various cultures. I wasn't able to hear most of them, unfortunately- I took on the role of "sweep", hiking at the end of the mob to make sure we didn't lose anyone off the back.

The only glitch in the evening was the moon- there wasn't one. We couldn't understand why we couldn't find the moon, until I finally realized what we had forgotten. We planned this hike in late winter, and when we looked up the moonrise times we had forgotten to account for daylight savings time.! No matter- half way through the hike the moon rose in a big red ball.

Dorinna gives a pre-trip briefing to the crowd.

The Devil's Backbone

The crowd listens to moon myth stories.

Kevin setting up his tripod.


* The bad news is yes, I am very behind on my blogging. The good news is that I plenty of material to keep me busy and readers (presumably) entertained.

21 August 2007

Rush at Red Rocks

A few weeks ago, my friend Jason and I saw our first show at Red Rocks: Rush. Red Rocks is a great place for a show. Perfect weather, soft evening light on pink sandstone monoliths, and a great view out over the plains to the skyline of Denver made for a very pleasant evening. The venue was full without seeming too crowded.

The show itself was a good mix of tracks from their newest album (“Snakes and Arrows”), deep cuts from older albums, and enough “greatest hits” for my taste. Rush has been touring for over 30 years, and most bands that age just play their old standards, worn-out from decades of radio play. It was good to see an older band still making new music- still being relevant. (Rolling Stone gave their latest album 3 stars, with the additional remark: "If you are a Rush fan, add 2 stars. If not, subtract 2 stars." Allmusic Guide gave it 4 stars out of 5.)

Here’s the set list [album name in brackets]:

Set #1

Limelight [Moving Pictures]

Digital Man [Signals]

Entre Nous [Permanent Waves]

Mission [Hold Your Fire]

Freewill [Permanent Waves] – one of my all-time favorite Rush songs:

You can choose a ready guide in some celestial voice
If you choose not to decide, you still have made a choice
You can choose from phantom fears and kindness that can kill
I will choose a path that's clear
I will choose freewill

The Main Monkey Business [Snakes and Arrows] – in my mind the there are two kinds of bands in the world- those with the musical talent to pull off a successful instrumental, and those who wish they could.

The Larger Bowl [Snakes and Arrows]

Secret Touch [Vapor Trails]

Circumstances [Hemispheres]

Between the Wheels [Grace under Pressure]

Dreamline [Roll the Bones] – they pulled out the lasers on this one, shooting green beams out into the Rocky Mountains. At one point a helicopter, search lights trained down on the crowd, burst up unexpectedly from behind the stage. It felt like it perfectly in sync with the music, but we still don’t know if it was part of the show or not.


During the intermission we admired the Rush stage. A few years ago they started a trend by putting clothes dryers on the stage. This time they went with giant cabinets of rotisserie chickens. During several of the songs, crew members would come out, open the cabinets, and baste the chickens. Quite entertaining.

Set #2

Far Cry [Snakes and Arrows]

Workin’ Them Angels [Snakes and Arrows] – these first two were my favorite tracks from the new album, and sounded much better live than in the studio.

Armor and Sword [Snakes and Arrows]

The Way the Wind Blows [Snakes and Arrows]

Subdivisions [Signals] – my only complaint about this one was that Alex’s microphone was turned too low. I always liked the contrast between his loud bass boom “subdivisions” and Geddy's standard shriek.

Natural Science [Permanent Waves]

Witch Hunt [Moving Pictures] – Moving Pictures has got to be one of the greatest rock albums of all time. This isn’t even one of the “A” songs on the album, and it’s still fantastic.

Malignant Narcissism [Snakes and Arrows] – another instrumental. This one transitioned into Neil Peart’s drum solo. First, let me just say that drum solos bore me to tears. This is where I check my watch, maybe sit down for a few minutes, talk to my friends, and mutter “enough already” under my breath. But… You know, there are many people who call Neil Peart the “greatest living rock drummer”- and there’s a reason for this. If I had been sitting I would have fallen out of my seat. There were a number of times where my eyes just popped out of my head: “You can DO that? That’s not possible!” The man’s hands and feet are just a blur, throwing down rhythms far too complex for my amateur ears to follow. Just simply amazing…

Hope [Snakes and Arrows]

Summertime Blues [Feedback] – their one and only cover. If you haven’t heard this one before, they make the old chestnut really rock. Lots of good audience participation.

The Spirit of Radio [Permanent Waves] – my favorite show of the concert.

For the words of the profits were written on the studio wall
Concert hall
And echoes with the sounds of salesmen
The line “Concert Hall” was, of course, sung by 9451 people, only one of whom had a microphone.

The next song was introduced by a South Park cartoon on the giant video screens behind the stage. The gang was dressed as the band, arguing over the lyrics to “Tom Sawyer”.
“Tom Sawyer went down the Mississippi on a boat with a black man. I read it in a book.”
“You dumbass, that was Huckleberry Finn. Now start it again, and this time get the lyrics right.”

And the instant the screens went black, the lights went on and the band played

Tom Sawyer [Moving Pictures]

And for the encore:

One Little Victory [Vapor Trails] – not their best known song, but I loved it ever since the Rush in Rio album, my favorite live album by any band ever.

A Passage to Bangkok [2112]

YYZ [Moving Pictures] – And to continue with my previous thread, you have to be really talented to end your show with an instrumental.

Over three hours of music were over, and it was time to go home. Great show, and I hope to see them again the next time they are in town.

05 August 2007

Black Hills 10: Final Image

Our dinner stop in Cheyenne gave me one last opportunity to take out the camera.

Black Hills 9: Wind Cave National Park

Our final day in the Black Hills. Kim and Shirley headed home early. They took the dog, so that we could do a prairie hike in Wind Cave National Park.

Traffic jam in the Black Hills

View from the Rankin Ridge Fire Tower - our first hike

The first hike was a nice viewpoint, but the second was more substantial- a large prairie loop on the Lookout Point and Beaver Creek trails. Wide-open prairie, bison, a year's supply of prairie dogs, even a nice valley filled with caves. This hike had it all.


Wide-open spaces

Cave entrance

Black Hills 8: Back to the Hills

The next day Kevin and Shirley went to Wind Cave National Park to explore some caves, while the rest of us took the dog on a number of hikes.

We started with a short walk to Cathedral Spires, not far from the Little Devil's Tower of a few days ago.
Then we drove to Cathedral Lake, and took a great hike down into Sunday Gulch- a granite ravine filled with giant boulders and a rushing stream.
We lived in constant fear from the carnivorous dry-land beaver. These man-eating beasts have been eradicated from Colorado, but still pose a threat in the wilds of South Dakota.

Where old paddle boats go to die.
After our hikes, Dorinna and I took chairs and books and enjoyed some relaxation on the shores of Legion Lake. Until the riff-raff arrived...

02 August 2007

Rain

We just had a little rain storm in Fort Collins- well actually a big rain storm. Almost 5 inches of rain in under 2 hours in the southwest corner of the city (where we live). The National Weather Service reports that flooding is exceeding 100 year flood levels.

Right now the rain is tapering off, but the flood waters are continuing to rise downstream. The irrigation ditch behind our house appears to be holding together OK. It's dark out, but the squishing under my feet as I walk across the back yard is no worse near the ditch than near the house.

My new rain jacket worked swimmingly.

28 July 2007

Black Hills 7: Drive Back to Camp

Tired after two hikes, I still managed to snap a few pictures on the drive back to camp.

Bison at Watering Hole

Late Afternoon Shadows

Black Hills 6: French Creek

Our second hike of the day was to descend into the middle of French Creek canyon. At one point we considered descending through the canyon as a two-day backpack, but we decided to save that trip for another day. After following a long dirt road, we descended down steeply and followed a very rough path through the canyon. It was nice to leave the arid plains into a wetter environment. Sky certainly enjoyed the opportunity to go swimming and fetch sticks.

On the hike down, Dorinna was surprised by a chipmunk, and screamed at the top of her lungs. On the hike back, Dorinna was surprised by a rattlesnake, and calmly said "Is that a snake?"

Kevin, Sky, and Dorinna walking along French Creek

Red Columbine

Bunny was a bit shaken after seeing the rattlesnake

Me at French Creek

Black Hills 5: Back on the Wildlife Loop

After our hike, Kim and Shirley went horseback riding, while the rest of us made another pass around the Wildlife Loop road on our way to our second hike.

View of the Wildlife Loop from the Prairie Trail

"Where the deer and the antelope play..."

Drive-thru Burro Petting Zoo

Herd of Bison on the plains