View allAll Photos Tagged Stack,
The Stacks of Duncansby, Duncansby Head at dawn.
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I will be selling these bracelets on the rio piedras campus of the university of puerto rico from feb 7th
If you or anybody you know is interested, leave me a message.
If you are too far away, you can buy them in my shop at Brillosito.etsy.com
Top tier is chocolate cake filled and crumb coated in vanilla butter cream. Bottom tier is vanilla cake filled and crumb coated in raspberry vanilla butter cream
Railroad ties are stacked in a corner of a parking lot for the New London (Ohio) town reservoir as an eastbound CSX coal train passes in the background. I'm not sure why these ties were stacked here.
South Stack is famous as the location of one of Wales' most spectacular lighthouses, South Stack Lighthouse. It has a height of 41 metres (135 feet). It has a maximum area of 7 acres.
Until 1828 when an iron suspension bridge was built, the only means of crossing the deep water channel on to the island was in a basket which was suspended on a hemp cable. The suspension bridge was replaced in 1964, but by 1983 the bridge had to be closed to the public, due to safety reasons. A new aluminium bridge was built and the lighthouse was reopened for public visits in 1997. Thousands of people flock to the lighthouse every year, thanks to the continued public transport service from Holyhead's town centre.
There are over 400 stone steps down to the footbridge (and not, as local legend suggests, 365), and the descent and ascent provide an opportunity to see some of the 4,000 nesting birds that line the cliffs during the breeding season. The cliffs are part of the RSPB South Stack Cliffs bird reserve, based at Elin's Tower.
The Anglesey Coastal Path passes South Stack, as does the Cybi Circular Walk. The latter has long and short variants; the short walk is 4 miles long and takes around two hours to complete. Travelling from the Breakwater Country Park, other sites along the way are the North Stack Fog Signal station, Caer y Tŵr, Holyhead Mountain and Tŷ Mawr Hut Circles.
Stacked chairs in a second hand store.
Minolta XD-7
Minolta MD 50mm 1:1.7
Ilford XP2 Super
scanned with a Minolta Dimage Dual II and Vuescan
Too cold and dark to go outside and shoot. So I stacked up the plates neatly and fired away. 2011YIP
ODC: Neat
11.6.2011
Stack of 5 sea urchins on a bed of sand.
I like the way the white dots on the different size urchins line up with each other.
The rocky tip of the Isle of Islay that curves to look out to Northern Ireland. Taken with an M42 Takumar 17mm. The EXIF says 18mm because the K3 doesn't have 17mm.
A Union Pacific stack train follows the Mojave River, as it rolls through the colorful confines of Afton Canyon.
A focus-stacked shot with 60 layers spaced 0.07 mm apart, taken by Sophia, using our new automated wooden flexure stage.
Copyright © 2017 OffdaLipp Images
This image is protected under the United States and International Copyright laws and may not be downloaded, reproduced, copied, transmitted or manipulated without permission written or otherwise from OffdaLipp
Sometimes after a tough day where everything you tried to do seemed to flounder or fail, just go back to your childhood. Lay back on the grass and simply look at the sky. Search for animal shapes or people's faces and let your troubles float away for awhile. (Rooster Rock State Park DSC_9790.jpg)
While walking along Sunset Beach in Vancouver, I found a lot of rocks stacked up in a weird way. Some people said they're miniature inukshuk's, but they're kind of missing the arms and legs... But they were still very interesting none the less.
Anyway, I'm slightly disappointed that I didn't get more of the sky and that warm light though.
Sea Stacks, Bandon Beach, Oregon.
This image was shot during the early morning hours. At this time, these sea stacks were perfectly lit up with an orange glow. The early morning sun was casting long shadows over the beach and the sky started to brighten up with a typical blue hue. I used a HDR image for the foreground that provided the realistic sharp image I was looking for. For the sky, I used a frame that was under exposed two stops. I composited these two images in normal blend mode in CS6. For a change, I did not overwork this image and I left it as real as I could. A lonely photographer (DW) gave a much needed scale to this image!
Please visit My WebsiteF11.
his photo was taken at thursley common on the 18th July 2017.
This is stacked from 3 images using my Olympus omd 1 mark 2 and the Panasonic 100-400 lens
I have been promoting noise reduction by stacking for years, but while I was able to recommend "Starry Landscape Stacker" for MAC users, there was no easy to use Software for Windows.
This has changed lately, with the release of SEQUATOR, a very easy to use program for stacking untracked nightscapes (for noise reduction) and the best of all: It is freeware!
sites.google.com/site/sequatorglobal/home
So far, I have been using fitswork, a dedicated software for stacking tracked star images. While I learned to use it for untracked images as well, this process is painfully slow. It would therefore be immensely helpful if SEQUATOR was able to perform as beautifully as fitswork, without all the slow manual interventions needed…
Today, I was able to do my first test of SEQUATOR. To see how it performs, I did a side by side comparison with an image I already processed with fitswork.
First I had to find an untracked image sequence. I have been doing mainly tracked shots lately, but I found my Bisti Eggs image which I shot from a fixed tripod:
To get a meaningful comparison, I decided run SEQUATOR with the same preprocessed TIFFs I have used for stacking in fitswork and publish some 100% crops taken from the resulting TIFFs right out of SEQUATOR and fitswork and without further processing. SEQUATOR has several options for stacking, but I found that “Freeze Ground”, “Auto Brightness OFF” and “High Dynamic Range ON” worked best for me.
As you can see, SEQUATOR does an extremely nice job. There are no star trails and no stacking errors and I really like how the foreground and the horizon are razor sharp. Very impressive indeed!
On closer scrutiny, the SEQUATOR result has a tad more saturated colors than my fitswork resut, but selecting “High Dynamic Range ON” avoided burning the stars. The increased saturation leads to slightly increased color fringes around the brighter stars, but this would have happened with the fitswork image as well during post processing and there are techniques to reduce this effect during processing.
SEQUATOR is really easy to use and it took me less than 5 minutes to produce the result, while my normal workflow in fitswork takes about 3 hours to arrive at the same stage.
Conclusion:
I can highly recommend SEQUATOR! If I ever have to process an untracked image sequence again, I use SEQUATOR instead of my fitswork workflow.
On Windows, it is by far the easiest to use and fastest stacking software for nightscapes and produces very good results. Even beginners can immediately produce excellent results. There are no excuses anymore for noisy single shot nightsapes… ;-)
PS:
1. Of course I still highly recommend using a tracking mount to achieve “deeper” sky exposures, by using lower ISO and higher exposure times. This means that you have to shoot the foreground separately with your tracker off and merge the two exposures during post processing. For this techique SEQUATOR might not be the best software out there, but to stay fair, that is not what it was built for…
2. Here is a very nice quick tutorial for SEQUATOR. The only point where I disagree with Mike, is that for better sharpness and no burned highlights, I recommend to use HDR instead of Auto Brightness.
It was a morning and we just woke up, I started to play with wood and stacked two of them like this.
one of two 600-ft+ stacks at a closed power station. the climb up here was the first that ever made my ears pop.
i spent a couple hours on top, watching some nearby emergency vehicles make their way through the plant, wondering if they were for me. at one point, i climbed up from the top platform to the foot-wide rim, but actually experienced a panic attack (rare, for me) and had to get down before i froze in place.
it turned out that the emergency vehicles were using a route through the plant to bypass a low clearance obstacle introduced by a nearby industrial pipe bridge. phew.
Ben Stack, Sutherland on a winter's late afternoon.
Copyright www.neilbarr.co.uk. Please don't repost, blog or pin without asking first. Thanks
Workers offices at the re-construnction of Södertälje C.
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Nikon F4
Nikon AF NIKKOR 50mm f/1.4 D
Fujifilm Superia X-tra 400, expired 2005-07
Tetenal C-41
06_20180617_0003
About equatorial mounts and their maintenance
Credit: Giuseppe Donatiello
The Earth rotates on its axis at about 465 m/s (about 1,670 km/h) at the Equator. This is a remarkable speed that we can perceive by watching the setting Sun disappear behind the horizon in a few seconds.
It is more difficult to perceive the rotation by looking at the stars without having a reference, however a trained eye is able to notice the slow and constant movement.
We notice this when we try to take a photo of the night sky, especially with focal lengths greater than 50mm. With panoramic lenses, in fact, it can take several seconds before recording the blurred stars with the camera on a tripod.
Even with a small telephoto lens, 2-3 seconds can be enough to have annoyingly stretched images. With longer exposures, you even get dashes of length proportional to the seconds used. With focal lengths of about a meter and above, the images will be stretched by just a fraction of a second, assuming that the brightness of the sources is sufficient to record something.
Even the brightest stars are damned faint, so it is mandatory to take exposures of a few seconds or more to capture their light. The problem is that the Earth rotates in the meantime and, if we do not compensate for this movement, they will produce marks on the sensor with a thickness proportional to their brightness. It may seem like a simple task but it is not.
The first step is from a fixed tripod to a device that allows us to replicate the Earth's rotation. In essence, the device must give the optical/photographic complex a movement from east to west equal to the Earth's angular rotation speed, with the greatest possible precision and in such a way as to keep the source virtually still on the sensor. This device is called an equatorial mount.
An equatorial mount has three degrees of freedom and allows us to tilt the hour axis, arranging it parallel to the Earth's axis. The hourly movement is instead entrusted to a motor capable of giving the axis an angular speed equal to about 15°/h.
If all the settings have been done correctly, we will get an image like the one below, with the stars and the planet Mars at the center of the Presepe cluster still. Above, however, the motor was deliberately "forgotten" to be turned off and the stars produced dashes, as explained above.
As we can see, even 30 seconds of exposure are barely enough to show the brightest stars in the cluster. To capture the very faint light of nebulae and galaxies, it will therefore be necessary to collect photons with a certain number of shots that we can add together with specific software. This allows us to improve the signal/noise ratio and have richer images.
The untracked images are not "defective" or "wrong". Indeed, we can exploit the Earth's rotation to take creative shots that recall the passage of time. A "strip" is also useful for estimating the brightness of a source by comparing it to others of known brightness: the eye estimates the differences on dashes better than on points.
With this method I estimated, for example, the magnitude of the supernova in M101 at 10.6, a value very close to that recorded with photometry, just to remember that astrophotography is primarily an investigative tool.
A good astronomical photograph is always the sum of knowledge, technique, experience and also creativity. Always have respect for it even when the result may seem unflattering.
Among the natural rock formations, there is stonework that was carried out by convicts who cut and stacked the stone blocks to build the pathways.
Firework display from Paignton Seafront.
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bring this back around for the Digging in the Archives Tuesday group :)........the URL is here, if you'd like to add a picture or 2 :)
www.flickr.com/groups/2730574@N22/
29/365.........
~~grinning~~
ANSH scavenger20 Stacked
1171/10/30