Trying 8 Second Intervals

On the local bicycle club mailing list I saw this link to an interesting report on very short intervals. There are links to the thesis there, so one can review the data itself. The investigators first examined the physiological effects of very short, high intensity intervals, comparing first 8 s work followed by 12 s rest vs 24 s work and 36 s rest. There was little difference physiologically, but the 8/12 sequence was preferred by the subjects. In the following 15 week training study the 8 second / 12 second 20 minute interval training was compared to a 40 min standard cardio workout at 60% of VO2 peak..

For some reason I was very interested in trying it. This morning I put on the heart rate monitor and tried to use my strength exercise as the stimulus- working hard with light weight for 8 seconds, resting for 12 and going continuously for 20 minutes. It didn’t work at all, because as I always find with continuous circuit training I feel the effort, but my heart rate never gets very high even though I’m working hard. I get to audible breathing, but I remain in at a low level of aerobic exertion based on heart rate.

Not wanting to give up, I gave it 20 minutes on the bike. I picked a resistance on the trainer that felt like work for 8 seconds followed by “just turning the pedals over” for 12 seconds. And the workout was quite intense. It’s seems like it’s quite self regulating to get one working very quickly just above lactate threshold. The rest periods are no where near long enough to recover and and the work periods I kept to short of painful, since I was going to be doing this for 20 minutes. Over about 10 minutes then, my heartrate stair-stepped up to about LTHR and slowly moved moved beyond it in the second 10 minutes.

I think it’s a nice way to build intensity on a trainer while stressing the aerobic system primarily. I could see pushing the workout over time to longer than 20 minutes, since I felt a modest amount of fatigue after the workout. I’ll see how ready I am tomorrow, which is the true test of workout intensity, but tonight my guess is that it’s a moderate, not a hard workout and I probably could do it again tomorrow.

My Local Waterfall

My Local Waterfall, originally uploaded by jjvornov.

Just before it started raining this morning, I managed to capture a few images of The Western Run, a small stream that runs through a nearby city neighborhood. This is just after the stream exits from a concrete piping system of a few blocks long. It’s in it’s natural bed, banked by more storm drains and areas of artificially built up banks, as seen here.

Because it was dim and I wanted to blur the water with a slow shutter speed, I got the tripod out for this series of images. I see that I really ought to invest in a better ballhead, even though the results here are credible.

I’ve noticed that Moose Peterson is pushing his images more and more just as I am. I like Vincent Versace’s aim creating images that reflect a believable improbability. It’s all too easy to push images into a psychedelic fantasy world that stop working as insights into what was seen at the time of capture.

[Nikon D300, 24mm f/2.8 NEF converted in Capture NX, processed in Photoshop using Nik Color Efex 3.0 filters.]

Reworking Light and Leaf

DSC_4665.8bit

DAC_4665I thought that one way of checking my progress in workflow would be to quickly rework an older image. I came upon this one, which I didn’t think worked well at all. I used Photoshop and the Nik Color Efex filters along with some of Vincent Versace’s lighting techniques to balance the leaf with the sunlight and create a more “closed composition. I don’t think it’s an image worth a lot more work, but I proved to myself that I’ve improved my editing eye and can return to images and improve the success of their composition. For comparison, the previous version is the smaller version at the right.

This Is A Photograph

Will You Look At That!

This image was capture on film (C-41 process black and white), developed and scanned by my local lab, then posted here un touched or manipulated. To me, it is a photograph. A moment in time captured by the light recording medium. It’s momentary and completely accidental for me. Since it required no level or contrast changes, I had no need to further manipulate it.

Erwin Puts has been writing on the subject. He describes well the difference between snapshots like this image and the construction of digital imagery through computers.

In my color Suburban Landscape project, I’m pushing my post processing well beyond what I’ve done before. Digital provides better ways to do what we were capable of in the darkroom with greater speed and control. However when you start working with layers, combining multiple images, adding effects like selective focus or sharpening one has left the realm of photography as it was known and are now creating images. Like painting or drawing, this new digital medium is more free and more subjective than photography.

By using two different cameras and media for capture, I have an easier time moving between the two different modes.

Why Has Eliot Porter Been Forgotten?

Savoring the Last of the Light

When I started photographic seriously in the early eighties, I used Ansel Adam’s books as a guide. While I wasn’t a large format photographer, I digested as much of the Zone System as I could use and worked to get full range, high contrast prints. I still use those black and white darkroom skills in my work as one my early steps for every image is to desaturate and create a curve that produces contrast and midrange placement where it looks the best in monochrome. When I drop the saturation back in, I get my typical look of high saturation and high contrast. The saturation isn’t really boosted above that from the converted RAW, It’s just that the contrast in those tonal regions are pretty high. While I often like the monochrome rendering, putting the color information back always surpises and generally pleases me.

Today I realized that one of my other influences from that time was Eliot Porter. He introduced color to photography and I think was a great influence on the landscape photographers active today. Porter’s images were generally subtle, gentle and often small scale. These qualities still resonate with me.

I realized that the reason I had forgotten about Porter’s influence is that he is so rarely talked about these days in spite of the continued recognition of his historical contribution to color landscape photography. My Suburban Landscape project is a clear reflection of his influence on how I approach landscape photography.

Technical note: This is one of the last images I shot last night when it looked mostly dark. It’s ASA 400 shot with the 24 mm f/2.8 prime wide open at 1/15th second, availble light, hand held. When you look at the full resolution print, it’s hard not to be amazed at the technology we now have available for color photography. It would simply have been impossible to get this image with film, at least without a tripod. However, the instant feedback of digital capture was vital here for me to know that I had correctly placed the value of the tree bark of the brightest tree where I wanted it in relation to the rest of the scene.

6 megapixel Silliness

Introducing . . . Tree

I captured this image of a tree down the block from my home just at sunset. I had a very nice image capture session, keeping the camera on manual and spot metering. I was metering to create contrast in the scene, usually by placing a bright object on Zone 7 with great success. I should be able to post a few more from tonight’s images if the forecast for rain turns out to be correct.Having shot this afternoon with the 10 megapixel Nikon P5000, I found this site to be rather silly. 

Best picture quality with 6 megapixels: The 8 megapixels devices released in 2005 showed extreme picture errors (so-called noise) under low light conditions and colour fringes in high contrast structures became visible. These problems have become even worse in today’s cameras with 10 and 12 megapixels. Manufacturers have attempted to repair these problems with software for noise suppression and picture editing.

To me, this is like saying that ASA 400 color print film provides best picture quality and no other film should be used. It may have been the best compromise at the time for color print film, with decent grain and high dynamic range. With sufficient light or a tripod, slower films, especially high saturation chromes like Velvia, could create images that no ISO 400 film could duplicate.What camera manufacturers are trying to do is to create cameras that degrade more gracefully and be all things to all people.

And diffraction limitation at f/8! Isn’t depth of field on a compact sensor enough at f/8? It’s like f/22 in 35mm film format. I could see slow shutter speeds as the complaint if you need to stop down to decrease light, but you can’t have infinite resolution on a camera through pinhole apertures.

The real problem is that internet testers analyze 100% crops rather than looking at reasonable size prints or on-screen images across light levels- which is what, I think, users really care about.

Andrew Hyde’s Blogging Tips

Some very nice tips on weblogging fromAndrew Hyde:

Here are a list of what I see as the biggest everyday mistakes of 07, taken from a list I jotted down at a coffeshop talking with some bloggers I really respect.

I first ran across Andrew when he was a doing an outdoor equipment podcast, “The Adventure Lifestyle”. I’ve been following his creation of the “Startup Weekend” with interest. While I miss the podcast, I’m happy about his current growing success as a catalyst for new ventures. He continues to be a man to watch.

Starting the Cycling Season Now

Greenspring Valley
It’s 47*F in Baltimore and sunny. I took advantage of the weather to go out on a slow recovery ride (1hr 20min). Yesterday I ran 7.5 miles on tired legs and this was the best break I could imagine. Since it was a recovery ride I brought the Nikon P5000 and stopped a few times to grab some shots. I thought they might serve as sketches to remind me of the scenery. I’ve watched these potential images go whizzing by during training rides before, but never stopped to capture them. Wearing my yellow tinted sunglasses always makes them look even more appealing.

Last year I didn’t start putting in milage on the bike until early March, so I had come up with a plan to ride 6 months and run during the rest of the year. I planned on cross training so I wouldn’t go completely out of riding or running shape during the year. I knew that I needed to keep up some running as it’s my best option for fitness during business travel. In October I switched over, putting the bicycle aside and started building mileage. As I finished up 3 months of mostly running, I had built to a 12 mile long run, taking me just about 2 and a half hours. My fitness, at least for running was measurably increasing.

My most important realization was how much I was gaining from higher intensity intevals approaching VO2 max. And with running, it was easier to get there given the weight bearing nature of the exercise and my low efficiency as a runner. Running is great during the winter because I feel comfortable running at temperatures and in weather conditions that keep me off the bicycle.

Having taken a few months to focus on running, I’ve decided to try to take January, February and March to build a base that will have me ready for intervals in April through May when the weather is better, but time is often short.

dangerousmeta! » Blog Archive » 8, going on 9.

Sunset On the Road

It’s been 9 years of weblogging for the early “Edit This Page” group. As Garrett points out:

dangerousmeta!:What am I, nuts? I’m still doing this?! I neglected to notice that the 22nd was my ‘weblog anniversary.’ December 22, 1999 was when I began writing this weblog (called ‘array.editthispage.com’ back then) on the Edit This Page servers, via Userland Manila weblog software. Never saw any others in NM until 2000, and even then they were few and far between.

I remember that those early days were linked to the dawning of the 21st Century as we waited to see whether we would face complete technological failure due to the Y2K bug. We’ve survived and many of that group still have a strong online presence. The novelty has worn off and I’m mainly focused on posting images and writing about photography now. Some of the best writing I ever did was for the original On Deciding . . . Better. I have much of the text archived but never found an easy way to get it back on the web. On Deciding . . . Better 2.0 is still up and running on my home G4Cube, but I think it’s days are numbered as this site collects more current and useful information.

Dante Stella’s D-Lux 3 Review. End of an Era.

Evidence of the Death

One of my favorite writers on photographic technique is Dante Stella. As I started back into photography a few years ago, his opinionated essays served as benchmarks for me as I explored cameras and materials. Dante has an extremely practical and grounded approach to photographic instruments.

Most of the essays on the site were written several years ago during the development stage of the digital photography revolution. While it was clear that he was using the best of the available digital SLRs (Kodak DCS 14n and a Nikon D2x), he was not accepting the supposed virtures of digital over film without question. It was interesting to me that his writing became more and more infrequent in the last couple of years as, in my opinion, digital equaled or surpassed film with regard to sensitivity, resolution and image quality. With the D300 perhaps even dynamic range. Then this year Dante wrote a full-on endorsement of the Leica M8. It almost moved me to take the leap and purchase one, but I decided that Nikon DSLRs are, for now, a more economical solution to the digital capture challenge and film was still working well in my Leica M6ttl.

But Dante has also been a fan of small 35 mm cameras like the Konica Hexar and Contax T. So it was with a sense of anticipation that I started reading his first published take on a compact digital camera, the Leica D-Lux 3. I bought a Nikon P5000 for my wife last spring and have been experimenting with it lately.

I can only urge you to read his practical and grounded approach to a digital compact. For example, here’s his view on auto ISO.

Dante StellaThe camera has an auto ISO function (based on light level) and an “intelligent” ISO setting (based on, among other things, subject movement). These seem to push for high ISO, even in bright light, a practice that increases noise and decreases dynamic range. I would suggest forgetting about either of these two settings. It’s easy enough to change ISO via the main menu. Just remember this rule. Inside, ISO 400. Outside, ISO 100. See? There’s your intelligent ISO setting…

As to image quality, I think his view on compact cameras equals mine- at ISO 100 to 400, quality at the 10 megapixel level equals color film. You never wanted to enlarge ISO 400 color film to 8×10 because of grain and you don’t want to enlarge a compact sensor at ISO 400 to 8×10. My D300 can produce fine 8×10’s at ISO 800 and 1600 becomes dicey- two stops better than color film. Monochrome, digital or film, is more forgiving.

In the end, as a travel camera, he gives it a “Thumbs up”.

I see the end of the era here in 2007 where film is now to be used for it’s look- like choosing oils or pastels over photography. Photography is now dead as a recording medium and has become a fine art, joining painting and drawing. Digital Image Harvesting is now how we record the world.