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CN 5609, one of few SD70I's left out of storage, takes Q116 south into Round Lake working in full Notch 8 to get the train up to speed.
One of the two coal stackers at Port Kembla coal terminal. It runs on rails along the coal storage, which is around 800 metres long.
One of the coal reclaimers (it retrieves coal from the stack for loading onto ships) is in the background.
Camera : Canon 5D III
LENS : 4X KYOWA objective lens
Images Stacked: 57 pics
Step size : 30 um
stacked: Wemacro
Full Stack 2017. Wednesday, 12th - Friday, 14th July at CodeNode, London. skillsmatter.com/conferences/8264-fullstack-2017-the-conf... Copyright www.edtelling.com
This screen capture shows two very different results that WinImages stacking capability can produce from the same set of images.
On the left, we see the sum of 12 images, which results in 12 times the sensitivity of a single camera shot. I describe this as stacking (x12/1), meaning twelve images (x12) divided by 1.
On the right, we see the average of 12 images, which results in 12 times the accuracy of a single camera shot. I describe this as stacking (x12/12), meaning 12 images (x12) divided by 12.
Both results were obtained from the same set of photographs.
WinImages allows you to automatically divide the image stack by the number of images in it, or by any arbitrary value you choose (except zero... :)
This means that, given 12 images, (x12/12) is the default. Given 8, (x8/8), and so on. So the default takes the average of the input set, which reduces the noise by a factor equal to the number of images involved. For an x12 set, noise is 1/12th of what it would have been otherwise, generally speaking. Gain can be as much as 12 times that provided by one shot, but the minimum data that can be recovered is limited by that picked up by the sensor -- in other words, it does no good to feed in 100 images if there isn't data 1/100th of the brightness you want to recover.
You can compromise. An (x12/6) set uses twelve images to both increase the gain and cut the noise; you just get less of both.
This is a very powerful and flexible way to choose a compromise between summing and averaging; you can do both and combine the two images as well.
The images were taken with a Canon EOS 40D, Canon EF 85mm f/1.2L II USM prime @ f/1.2, ISO 3200, 4 secs (each) exposure, tripod, 2 sec shutter holdoff to reduce vibration. Images process from RAW to JPEG using Aperture.
A friend and I took a stack-n-whack class. Here are a few of the blocks I've actually completed. It lives in a box somewhere in my domicile... Maybe someday it will turn into a quilt... ;-D
module-stacked-large-blanc-muuto
www.ideesboutique.com/etageres/6389-module-stacked-large-...
La collection Stacked Muuto : www.ideesboutique.com/fr/s/702/muuto-stacked
La marque Muuto : www.ideesboutique.com/36_Muuto
La collection de Jds : www.ideesboutique.com/fr/s/701/designer/jds
module-stacked-medium-blanc-avec-fond-muuto
www.ideesboutique.com/etageres/6396-module-stacked-medium...
La collection Stacked Muuto : www.ideesboutique.com/fr/s/702/muuto-stacked
La marque Muuto : www.ideesboutique.com/36_Muuto
La collection de Jds : www.ideesboutique.com/fr/s/701/designer/jds
Noticed these whilst in one of my favorite area's of Singapore... Little India.
Best viewed large and on black
South Stack Lighthouse, Anglesey.
South Stack is set in a spectacular location to the north-west of Holyhead. The lighthouse acts as a waymark for coastal traffic and a landmark and orientation light for vessels crossing the Irish Sea to and from the ports of Holyhead and Dun Laoghaire.
History of the lighthouse
In 1645 when lighthouses were privately owned, King Charles II was petitioned for a patent to build a lighthouse on South Stack. The request was refused. However, 143 years after the original petition, Trinity House leased South Stack island and construction of the lighthouse commenced. On 9 February 1809, the station's oil lamps, designed by Daniel Alexander at a cost of £12,000, were first lit. In 1828 an iron suspension bridge was built to replace the rope catwalk that originally linked the lighthouse to the bottom of the 400 steps down the cliff face.
This was one of the many changes that have taken place at South Stack since 1809. The lights regularly became more efficient and in 1938 electric power replaced the oil that powered the lamps. In 1964 the iron bridge was taken down and a new one of aluminium was put up in its place.
The lighthouse was automated in 1984, and the keepers withdrawn. Today, the lighthouse is monitored and controlled by computer link from Trinity House Operations Centre in Harwich, Essex.
Proof that stacking on comet vs stacking on stars does make a difference, even for slow-moving comets.
This is comet C/2013 R1 (Lovejoy) on December 22, 2013.