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Field curvature is an undesirable property of photographic lenses in which the center and borders can't be brought into sharp focus at a single focus setting. Lenses of simple design focus sharply onto a bowl-shaped surface. (See first comment below for an illustration.) They misbehave when we ask them to focus their images on a flat sensor or piece of film.
A lot of smart people, mostly with German and Japanese names, worked from the 1880s to the 1950s to perfect multi-element lenses that could project a sharp image onto a flat surface. We've now come to take flat-field lenses for granted.
I just posted an article at dpreview.com on field curvature with some images that demonstrate how it works. I did the experiments using a Fujian 35mm f/1.7 CCTV lens that exhibits the worst field curvature I've ever encountered. It's a $25 lens that makes dreamy-looking portraits with a sharp center frame. It's a huge bargain if you don't care about the borders being in focus.
Each pixel in "original" size is 5 square miles.
These are all 3015 15-mile-square places in the world where there was a cluster of geotagged pictures in close proximity. The tourist/local split is basically worthless at this scale, where every square is locals at the edges with maybe a dot or two of tourist-dominated area somewhere in it. Tourists may take more total pictures in some areas, but their locations are always more concentrated.
Took this based on a photo posted today by @dibytes where she made note of how focal length can make a difference in what you see. Then, before choosing to post this image, I read a blog entry by @susanvg in which she observes how a photo can be visualized in many ways, and can tell a bit of story. I see different images here. What do you see?
This poster by 300million has been nominated in the Best Poster Award category of the Design Week Awards. It illustrates the intricate, interwoven relationship between businesses and their brands; a.k.a. 'The 300million brand/business poster'; a.k.a. 'The inner mind of a brand geek'.
It is a self-promotional poster that was sent out to prospective and existing clients. The idea was to avoid marketing cliche and instead focus on the creative process. A visual stream of consciousness provided the solution.
www.visualcomplexity.com/vc/project_details.cfm?id=423&am...
An example output from the Visualize_Backtrace.module, which parses the XDebug traces of Drupal function calls.
This visualization shows the teams sorted by rank. On the top, it shows goals scored, on the bottom it is goals conceded.
A tour of the newly renovated EVEREST visualization theater at the Oak Ridge Leadership Computing Facility.
Illustrative Visualization of a german climate change adaption research network – using processing and a metaball force field fpr moving agents
✰ This photo was featured on The Epic Global Showcase here: bit.ly/1RDlf6w
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Beautiful and cute by @murka.art tag your art #arts_visualization for a possible feature. #instaartist #art #artist_4_shoutout #blvart #art_spotlight #art_collective #art_empire #artextreme #imaginationarts #artistic_support #artistic_nation #worldofartists #phanasu #mizu_art#worldofpencils #drawing_feature#drawings #drawing#mixedmedia #artsanity#pencildrawing#artoftheday#cute#beautiful #amazing by @arts_visualization bit.ly/1SabdFW
Ascent Penthouse
Client: Mr Dung - IAM Architecture
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@ Long Nguyen & Thu Nguyen
Architecture - Interior Design & 3D Visualization
0979 962 864, Ho Chi Minh City
advlongnguyen@gmail.com
The Cheesy Animation Is Best Architectural 3D Animation And 3D Rendering, Architectural Visualization Company In India, Gujarat, Ahmedabad, Mumbai.
This image visualizes the discovery of asteroids from 1801 to 1950. The Solar System is shown in a logarithmic scale to allow both the main asteroid belt and Kuiper objects to be shown. Asteroids are shown in the position of their perihelion. This makes it easier to separate the various families.
I also plotted the histogram of how many minor planets were discovered each year, the semi-major axis, and excentricity on the right panels. The left panels show the excentricity and inclination as a function of semi-major axis, this is again to show how the various asteroid families were defined based on their orbits.
Data source: www.minorplanetcenter.net/
Youtube visualization: youtu.be/QOdrRX-IScc
Stunning visualization of death over space and time. Turn up the volume too.
If the US had a FICO score, what would it be?
Client work: www.creditloan.com/blog/uncle-sams-credit-score/
A fun chart comparing the use of three terms for scary stuff, over time: terror, horror, Gothic.
Man, this is automatically teachable. And provocative.
Built using Google's NGram.
Like me, anyone working on the abstract visualization of book texts will have been inspired by Stephanie Posavec's "Writing Without Words" (2006), a project she did on the Central Saint Martins MA in Communication Design. A friend from work took that inspiration several stages further. Since reading and rereading Darwin's "On the Origin of the Species" during his doctorate Greg McInerny has been obsessed by the text: the ideas contained in Darwin's book, and the history of the text itself. Being an ecologist/biologist Greg is also obsessed by those old botanical collection book plates by the like of John Stevens Henslow and Ernst Haeckel. So Greg pored over the text using R to analyse and build Posavec-style diagrams of the developments and changes Darwin made between editions of his book. But the links are tighter. Stephanie is Greg's sister-in-law and so they teamed up to take Greg's analysis and render them with the exquisite beauty we're use to in Stephanie's work, both spending time on the design details needed to present the visualisations as if they were part of those old botanical collections. The whole venture was spurred on by the realisation that they were not the only ones working on this. Like Darwin and Alfred Russel Wallace, Ben Fry came to a workshop Greg organised for doctoral level ecologists and after Ben's talk they realised that they were both working on visualizing changes between the editions of Darwin's work. Ben's just put his visualization up online: http://benfry.com/traces/. Stephanie and Greg's work is also online (http://www.itsbeenreal.co.uk/index.php?/on-going/about/ & http://research.microsoft.com/en-us/projects/TextVis/) but to see it at its best you have to see the huge prints they made for the Darwin 2009 exhibition at the Cambridge University Centre. The exhibition ran from the 3rd of July 2009 to the 20th, but luckily for me Stephanie and Greg have been tardy in removing their work so you can still see them hanging in the Main Dining Hall, Cambridge University Centre on Granta Place, Cambridge.
N.B. I also took some photos of the work Stephanie and Greg did for the RA Summer Exhibition (though it was rejected) using what Greg and I call Posavec Diagrams, what Stephanie calls Sentence Diagrams: http://www.flickr.com/photos/dumbledad/sets/72157619825788142/. And Stephanie's husband / Greg's brother Steve took some great shots of this '(En)tangled Word Bank'exhibition at the openning: http://www.flickr.com/photos/sharp-sharp/sets/72157621146041024/.
Each pixel in "original" size is 5 square miles.
The darkest pixels are where a geotagged picture was posted in May, 2004, the oldest data I have, and get lighter and lighter by month for places where the oldest available picture is more and more recent. The areas that are totally white have no geotagged pictures at all.
Visualization based on a survey of what Brock students, staff and community professionals like most about living in the Niagara region.
Ascent Penthouse
Client: Mr Dung - IAM Architecture
---
@ Long Nguyen & Thu Nguyen
Architecture - Interior Design & 3D Visualization
0979 962 864, Ho Chi Minh City
advlongnguyen@gmail.com
How I organized and colour-coded quotations and relevant sections of books ready to write a section of my Ed.D. thesis.
Visualize graphic available for download at http://dryicons.com/free-graphics/preview/visualize/ in EPS (vector) format.
View similar vector graphics at DryIcons Graphics.
▌ À voir en grand ici ! • Please view it large here!
Comme partout sous ces latitudes, les verts sont d’une puissance tout à fait stupéfiante et l’appareil photo a toutes les peines à restituer le sentiment qui vous envahi quand de telles couleurs vous entourent.
Des souvenirs de vie à Madagascar, à la Réunion, etc., qui sans cesse me font prendre la mesure, Ô combien différente, de ma vie parisienne…
▌ Voir la comparaison avant|après traitement sur mon Blog
As everywhere in these latitudes, the greens are of a power quite amazing and the camera has all the trouble to return your feeling when such colors surrounds you.
Memories of life in Madagascar, Reunion Island, etc., which continually make me take the measure, so different of my life in Paris…
▌ Check-out the before|after processing comparison feature on my Blog
▌ Vous pouvez me suivre sur Twitter • You can follow-me on Twitter • @Tazintosh