View allAll Photos Tagged Stack
A UP stack train heads south through Morada, CA on the UP Fresno Sub. Seen here crossing Bear Creek.
Continuing my early morning walk, wrecked cars stacked ready for recycling. There's a wire fence around the compound so I had to use a wide aperture to throw the fence out of focus.
My specimen photos are taken using this setup. The base is a block of wood from the offcut bin of a hardware store that sells kitchen worktops. The camera is attached directly to a BPM focus rail, which is mounted on a tripod quick-release plate, screwed to the base through another small piece of wood. The rail allows me to move the camera and coarse focus it. At the other end of the table is the specialist equipment: a Proxxon KT 70 table, screwed to the base. This is a low-cost alternative to linear actuators or stacking rails: one turn of the handle moves the table 1 mm. The divisions on the dial are 0.05 mm, so by moving to half way between each one I take frames at 0.025 mm intervals, which is narrow enough for most whole-insect photos I take. Smaller intervals are possible with smaller movements of the handle, but they are not easy to measure. This idea came from John Hallmen: you can see his setup here. Without his advice, I would not have been able to do any of this, so thank you to John and to Nikola Rahme; two people whose photos I greatly admire and who have shared their techniques freely on flickr.
A SIlverline Helping Hands is mounted on the Proxxon table. The crocodile clip holds a piece of plastazote in its jaws; I stick the specimen's pin into the plastazote and try to get it in the same plane as the camera sensor. This is fiddly: a vertical setup would be easier for this, but it would need better handiwork skills than I have. A heavy granite base would also make for a more stable setup, as would a concrete floor instead of a wooden one, but there is nothing I can do about that in my house.
Lighting comes from a flourescent tube desk lamp. The lamp would not hold itself in the right position, so I broke it off from its stand and I held it in a clamp stand instead. I use a simple cylinder of greaseproof paper as a diffuser: this is just pushed on to the end of the lens. To help get a more even light I have a sheet of kitchen foil as a reflector opposite the lamp. I also fix on the camera a 26mm stepping ring with foil over the front, another idea from John Hallmen, explained here.
I have tried other lighting, such as using two Ikea lamps (like the one that carries the foil in the picture above), each with a plastic cup over it to act as a diffuser. But the setup shown here is the one I have come to prefer.
I use Zerene Stacker for the stacking, with DMap as my main image, retouched from the PMax image where the detail is lost in the DMap. Then the image is edited in GIMP before getting a posting here.
In Chichester Cathedral..waiting to be set out for a service...
For the TSC group challenge ( over on Ipernity) 7th June..Your favourite song and picture that goes with it..well I seem to have a different favourite song every week..depending on my mood..where I am..etc etc..this week it is Re:Stacks by Bon Iver..I am playing it to death at every opportunity!..
Have not had a chance to get a new picture to go with it so this old one will have to do..
Here is a link to the song in case anyone wants to listen to it ..
I of course think it is wonderful but everyones tastes are different :))
The Stone Stacking Art of Reyino Llanas Chavez at the waters edge along the Malecon Boardwalk in downtown Puerto Vallarta.
Rollei Retro 80s - XTOL (1+2) - (processed @ www.gammasf.com )
SEKONIC L-778 DUAL SPOT F METER (Shot at 80ASA, spot-metered through the filter)
Heliopan 67mm INFRARED RG-715 FILTER
(exposure unrecorded, stabilized with a tripod)
MAMIYA 7 MEDIUM FORMAT RANGEFINDER W/ 80MM F4
Epson PERFECTION V750-M PRO SCANNER
(20140102_RolleiRetro80s_XTOL1plus2_Mamiya7_PuertoVallarta_53831_006)
At last some cloud! Tried using my Reverse NDG here but it's pants....... don't buy one! Best seen LARGE or in My Flickeflu (Click the link below). Thanks for looking folks.
Double stacks from British Columbia cruise into Kensington on a perfect January afternoon on the Minnesota prairie.
A UP stack awaits a green light to head west from West Colton yard to LA, with GE 7074 leading. 5 units altogether: middle one is EMD.
This is my first attempt with my new Tamron 90MM Macro lens and a series of 11 photos focus stacked.
Strobist 1 SB910 handheld camera left at manual power 1/64 fired by a pocket wizard.
South Stack Lighthouse was built by Trinity House in 1809, marking a tiny islet off Anglesey at the north west tip of Wales
Built
1809
Height of Tower
28 m
Height of light above Mean High Water
60 m
Automated
1983
Electrified
1938
Optic
1st Order six panel catadioptric rotating
Character
Fl 10s
Intensity
467,000 candela
Range of light
24 NM
Region
West
South Stack Rock lies separated from Holyhead Island by 30 metres of turbulent sea, surging to and fro in continuous motion. The coastline from the breakwater and around the south western shore is made of large granite cliffs rising sheer from the sea to 60 metres.
Origins
South Stack Lighthouse was first envisaged in 1665 when a petition for a patent to erect the lighthouse was presented to Charles II. The patent was not granted and it was not until 9 February 1809 that the first light appeared to mark the rock. The lighthouse was designed by Trinity House surveyor Daniel Alexander and originally fitted with Argand oil lamps and reflectors. Around 1840 a railway was installed by means of which a lantern with a subsidiary light could be lowered down the cliff to sea level when fog obscured the main light.
On 25 October 1859 it is said that the most severe storm of the century occurred, known as the 'Royal Charter' gale; and on that and the following day over 200 vessels were either driven ashore or totally wrecked with the loss of 800 lives.The steamship Royal Charter was among these, sinking within yards of help with the loss of almost 500 passengers and crew.
In the mid 1870s the lantern and lighting apparatus was replaced by a new lantern. In 1909 an early form of incandescent light was installed and in 1927 this was replaced by a more modern form of incandescent mantle burner. The station was electrified in 1938.
Automation
On 12 September 1984 the lighthouse was automated and the keepers withdrawn. The lighthouse is now monitored and controlled from Trinity House’s Planning Centre in Harwich, Essex.
I was awaiting a stack heading west that had a UP Heritage unit (WP 1983) as the second unit, but lo and behold, this one was not the one. It turned out it was behind this one, but eventually the prized stacker was allowed to overtake and pass this one, as it came through Colton a short time later ahead of the pictured one.
This is a focus stacking example. Hosta flowers grow from a long stem extension from the base of the main plant. This shot looks down one of those stems, and uses 9 shots in a stack to maintain the depth of field from the highest flowers to the lowest flowers. Not a great shot, but I lacked the time for more than one quick attempt.
Added to Explore at #381.
Free texture sample here. Enjoy! See more examples in my Xeroxed Flickr set.
Buy up to 40 Xeroxed textures at my store.
© Blue Perez 2009 all rights reserved.
location | Plaka, Crete, Greece
photography | Blue Perez
processing | Lightroom, Alchmi Lightroom Presets, Alchmi Photoshop Actions, CS4, Alchmi Xerox Textures
blogged | here
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When VHS first came out, Disney made limited releases of all the Classics. Most were available for only one year and people eagerly awaited the next release. Fast forward 15 years. VHS was obsolete, those eagerly sought tapes were in thrift stores at a dollar apiece. That's when my grandchildren were little!!!! A trip to the thrift store and....Disney Magic for two little ones at Grandpa's house!!!!!