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2πrad's photostream |
Lens are circular, so we should have circular image sensors and circular film to maximize the use of our lens. Or at least, we should have square pictures. It can be shown using calculus that the square is the maximum-area rectangle that can be inscribed inside a circle.
360° = 2π radians. All hail the almighty circle.
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== my cameras ==
SLR: Nikon D70, D90, Olympus E-P1 (m43 != SLR)
lens: Nikkor 10.5mm fisheye, Sunex superfisheye 5.6mm, Tamron 28-80mm, Tamron 18-270mm, Soligor 400mm, Tamron mirror 500mm, Opteka mirror 500mm, Nikkor 12-24mm, Tamron 70-210, Nikon FC-E8, Nikon FC-E9, Olympus m43 17mm pancake, Olympus m43 14-42mm,
point&shoot: Nikon Coolpix 2500 & 3500, Canon Powershot S1IS, Canon 100HS, Nikon Coolpix S4, Olympus Stylus 770SW, Canon SD750, Canon S400 & S410, Kodak DC20 & DC25, Sony Webbie & Bloggie, Nikon Coolpix 990, Kodak DC50 & DC120
broken: Canon S100 , Canon S200, Casio Exilim M20u, Panasonic SV-AS10
2πrad's favorite photos from other Flickr members (91)
Contacts (2)
Groups (50)
- squareFormat 657,384 photos, 25,524 members
- squared circle 117,341 photos, 7,458 members
- Flexify 1,393 photos, 125 members
- Polar weirdness 598 photos, 115 members
- Tessellations 163 photos, 32 members
- Poincaré 102 photos, 15 members
- Hugin Users Group 9,212 photos, 1,146 members
- Peirce Quincuncial 64 photos, 10 members
- Micro Four Thirds cameras using alternative & legacy lenses 32,010 photos, 1,982 members
- Panasonic Lumix G or Olympus E series with Leica M lenses 12,632 photos, 1,178 members
- Electronic Porn 4,247 photos, 861 members
- vintage electronics 10,582 photos, 2,118 members
- 7x7 Magazine - SF Neighborhoods - Get Published! 13,475 photos, 682 members
- Views: 1000 17,488 photos, 10,604 members
- Views: 400 47,143 photos, 11,410 members
- Views: 300 80,050 photos, 12,842 members
- GameBoy Camera 2,072 photos, 476 members
- Low Res (Digital Is Not Dead!!) 2,467 photos, 318 members
- Low Res Digital Camera Collection 341 photos, 97 members
- CityScape 363,501 photos, 15,992 members
- KQED QUEST 2,107 photos, 324 members
- Views: 200 166,156 photos, 15,592 members
- Long Exposure 395,317 photos, 43,214 members
- Vintage Digital 445 photos, 72 members
- San Francisco Magazine 6,592 photos, 290 members
- Favorites: 5 92,842 photos, 8,590 members
- Night Images 782,301 photos, 95,378 members
- Gorillapod Love 4,125 photos, 1,509 members
- Geometric Beauty 123,581 photos, 8,871 members
- Out Of Bounds (OOB) Creations 12,897 photos, 2,848 members
- Out of Frame 3,855 photos, 710 members
- Seamless tiles 687 photos, 82 members
- Escheresque 3,493 photos, 743 members
- Nikon Digital Learning Center 711,868 photos, 63,636 members
- Nikon Capture NX Users Group 60,960 photos, 4,614 members
- SF Flickr Social 8,559 photos, 917 members
- 3D Stereoscopic Creations, Art, Manipulations & Games 7,635 photos, 889 members
- PhotoShop 88,392 photos, 16,038 members
- Living Life Through A Lens 111,520 photos, 2,985 members
- Indoor Panoramas 2,157 photos, 212 members
- Hugin 8,726 photos, 755 members
- 3D Cross-view only. 16,457 photos, 564 members
- Loreo 3-D 991 photos, 182 members
- Stereophotography 36,931 photos, 2,109 members
- Views: 100 486,384 photos, 21,002 members
- panoramas 171,252 photos, 19,520 members
- Polar Panoramas 7,881 photos, 2,184 members
- Guess Where SF 27,536 photos, 1,560 members
- Patterns and Designs 66,762 photos, 6,387 members
- Streets of San Francisco 17,552 photos, 884 members
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- Joined:
- May 2008
- I am:
- Male