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Un experimento de stack focus, una técnica que me comentó hace poquito JCRUIZ y a la cual empiezo a ver el "gustillo".
La técnica de stack focus consiste en realizar varias tomas con diferentes planos de enfoque para combinarlos todos y obtener una toma general con una profundidad de campo mucho mayor de la ofrecida por el diafragma del objetivo, de este modo, podréis ampliar la cobertura de enfoque en macros y fotografías del estilo. Hay programas que al parecer realizan esta operación de una forma más o menos automática pero son para PC. Esta que os muestro está hecha en MAC y de forma y procesado manual mediante el empleo de 3 capas con planos de enfoque.
A stack of exorbitantly expensive imported McVities digestive biscuits. Had to be quick on this one - there won't be a stack for very long!
ODC: stack
Constructive criticism welcome!
this was taken at a Chinese herbal tea stall in Hong Kong.
Each type of tea is served in bowls and the stacked consumed bowls are displayed infront of the counter to advertise their good business ( and from a consumer point of view, that the bowls are not reused immediately? ^^ )
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Among the most impressive sights along the Jurassic Coast are the sea stacks at Ladram Bay. The sandstones contain numerous vertical fractures and joints that were formed deep in the Earths crust during past mountain building periods. The sea picked out these planes of weakness to form caves and natural arches that have since collapsed to produce sea stacks. The “Otter Sandstone” that forms the cliffs and sea stacks were deposited in a hot dry climates in the Triassic Period about 220 Million years ago. The stacks are composed of the same rock, which is relatively soft, but they have a harder band of sandstone at their base which prevents their rapid erosion by the sea. The striking red colour of the rock is caused by iron oxide, which tells us that the layers were formed in a desert. The presence of ripple marks and channels in the sandstones, together with the remains of the long-extinct plants, insects, fish, amphibians and reptiles, show that the desert was crossed by fertile river valleys.
The “Otter Sandstone” is the richest source of Triassic reptile remains in Britain and one of the most important in the world. At the south-west end of the bay, the most common fossils in the sandstone are networks of vertical, tube-like carbonate petrifactions (rhizocretions): these represent the roots of plants that were able to survive in the harsh dry climate of the Triassic Period.[2]
The bay is sited on the same band of Sandstone that forms the oil reservoir at the Wytch Farm oilfield on the Isle of Purbeck.
Palmer, Alfred T.,, photographer.
Smoke stacks
1942
1 transparency : color.
Notes:
Title from FSA or OWI agency caption.
Transfer from U.S. Office of War Information, 1944.
Subjects:
Smokestacks
Industry
World War, 1939-1945
United States--Ohio
Format: Transparencies--Color
Rights Info: No known restrictions on publication.
Repository: Library of Congress, Prints and Photographs Division, Washington, D.C. 20540 USA, hdl.loc.gov/loc.pnp/pp.print
Part Of: Farm Security Administration - Office of War Information Collection 12002-28 (DLC) 93845501
General information about the FSA/OWI Color Photographs is available at hdl.loc.gov/loc.pnp/pp.fsac
Higher resolution image is available (Persistent URL): hdl.loc.gov/loc.pnp/fsac.1a35073
Call Number: LC-USW36-377
Modern stone stacks on the hill above Cuween Chambered Cairn, Mainland Orkney
Sigma 14mm f2.8 manual focus
This is a stack of 120 images (interval 5 sec; lapse time ~10 minutes), layers darkened and lightened then blended 50%-50% with Photoshop. Since the clouds remained nearly stationary, except for a drifting contrail at top, the image almost looks like a single frame image.
The phantom jeep was unavoidable.
I recently found out about a procedure for stacking multiple digital (astronomical) images together to enhance an image. By stacking several photos, the signal to noise ratio is increased and details lost in the noise of individual pictures become visible in the resulting stacked image. This is my first effort at stacking three images of the moon using a program called Lynkeos (lynkeos.sourceforge.net), although there are several other similar programs available.
To take the pictures I used a Sony α100 camera with a Tokina 170 to 500 mm lens using a fence as a monopod. :-) The image is highly cropped from the original full frame photos.
Two high-horsepower NS locomotive hustle intermodal train 23M west through the Juniata Valley between Port Royal and Thompsontown
Stack of Windmills in harbour area renewable energy looks funny when they mills are aligned in one single line
Panasonic FZ70 f6.3 1/100sec 112mm
stacked from 3 images and sharpened by wavelet filter in RegiStax V6.
- still standing since c.1805
The skill in fitting these stones together is pretty amazing when you look closely. Other than a little clay here and there, it is the weight of the stones, pressing down on each other, that keeps it standing...
257/365
NS 3674 leads intermodal train NS 259 westbound through Mexico, Pennsylvania, along the Middle Division of the NS Pittsburgh Line.
Another frame from the Mining Bee ( Andrena accepta )
Tech info | shot based on 87 exposures stacked at 4x magnification, exp.time 2sec, ISO200
Stacking Soft / Zerene Zerene Stacker
The scene lit by two IKEA Jansjö led lamp and diffused with a foam cup
LOMO 3.7x 0.11 NA Microscope Lens | Asahi Pentax Auto Bellows M | Sony A7
Serropalpus barbatus, Melandryidae
Size: 15 mm
At first glance this beetle is almost dull looking but a closer inspection reveals a rather magnificent pair of palps.
This wood boring species is considered to be quite rare here in Sweden, but since it's nocturnal and shy it might be more common than we think.
28+1 exposures stacked in Zerene Stacker (last one stopped down). Mitutoyo M Plan Apo 5X 0.14 + Apo-Gerogon 210/9.
4 Stacks from 115 images and differend light figuration combined
This was taken with f16, Panasonic 45-175mm and Raynox DCR-150. The interresting thing about some telezoom lenses is, that their sharpest possible aperture in combination with raynox dcr lenses is f16, and the picture quality is much above the native quality of the teelezoom lens. In stacking f16 brings often much better results than f4, because of the smaler seams around overlapping objects.