Photography : নাইকন এএফ নিকর ৭০-৩০০ মিমি জি লেন্স

নাইকনের এএফ নিকর ৭০-৩০০ জি লেন্স বাজারে এসেছে ২০০৬ সালে। মনে হতে পারে এতবছর পর এই লেন্সে নিয়ে মাথা ঘামানো হচ্ছে কেন। হচ্ছে কারন এই লেন্সের দাম। ১২০ ডলারের অন্য কোন ৭০-৩০০ মিমি টেলিফটো লেন্স পাওয়ার সুযোগ নেই। যারা কমদামের মধ্যে টেলিফটো জুম লেন্স পেতে চান তাদের জন্য আদর্শ এই লেন্স। লেন্সটি ওজনে একেবারে হাল্কা। লেন্সের বর্ননা এমন, .ফোকাল লেন্থ ৩০-৩০০ মিমি .এপারচার ৪-৫.৬ .ফিল্টার ডায়ামিটার ৬২ মিমি .লেন্সের মাপ : লম্বায় ৪.৬ ইঞ্চি, ব্যাস ২.৯ ইঞ্চি .ওজন ৪৮০ গ্রাম .সাথে বড় ধরনের লেন্সহুড রয়েছে। পারফরমেন্সের বিচারে তুলনা করতে হলে এরথেকে দামী লেন্সের সাথে করতে হয়। কাজেই তাদের থেকে কিছুটা পিছিয়ে থাকবে এটাই স্বাভাবিক। ২০০ থেকে ৩০০ মিমি রেঞ্জে ইমেজ কিছুটা সফট পাওয়া যায়। এটুকু মেনে নিতে হবে। অন্যান্য বৈশিষ্টের মধ্যে উল্লেখযোগ্য হচ্ছে এতে বিল্ট-ইন অটোফোকাস মোটর নেই। ফলে কমদামী মডেল যেমন ডি-৬০ কিংবা ডি৩০০০/ডি৩১০০ থেকে অটোফোকাস ব্যবহার করা যাবে না। ডি-৯০ মডেলের জন্য বেশি সুবিধেজনক। এতে ভাইব্রেশন রিডাকশন (ভিআর) নেই। ভিআর সহ ইডি ভার্শন এর দাম ৩১০ ডলার। অটোফোকাসের জন্য যথেষ্ট আলো প্রয়োজন হয়। অটোফোকাসের সময় বেশ শব্দ হয়। এরপরও মুলত দামের কারনে এই লেন্সের উল্লেখ করতে হয়। দামের বিচারে ছবির মান যথেস্ট ভাল। পোর্ট্রেট এর ক্ষেত্রে কোন সমস্যা নেই। ল্যান্ডস্কেপের জন্য ট্রাইপড ব্যবহার করে এই লেন্সেই ভাল ফল পাওয়া যাবে। এর বিকল্প হতে পারে ইডি ভার্শন, অথবা ৮০-২০০ এফ/২.৮ কিংবা ৮০-৪০০ ভিআর লেন্স। এগুলোর দাম এরথেকে অনেক বেশি।

Top money-making websites

The internet offers endless ways to make some extra cash. Moneywise looks at some of its favourite money-making s ... http://p.ost.im/F92q3d

America's 25 Worst Highway Bottlenecks, 2012 Each year, the Daily Beast compiles a list of the country's worst bottlenecks using data supplied by INRIX, a traffic tracking and analyzing company. Their Traffic Index collects data from 100 million vehicles to score the amount of extra time it takes to drive through a particular stretch of highway during rush hour. Consult the table below to find out what freeways to avoid when you hit the road. RankCityFreewayWorst corridorLength of worst corridorExtra time during rush hourWorst travel hour 1.Los AngelesHarbor Freeway/CA-100 northboundI-10/Santa Monica Freeway to Stadium Way/Exit 24C3.1 miles8 minutesTuesday, 6–7P.M. 2.New York CityVan Wyck Expressway/I-678 northboundBelt Parkway/Exit 1 to Maine Street/Exit 83.1miles10 minutesMonday, 8–9A.M. 3.San FranciscoCalifornia Delta Highway/CA-4 westboundHillcrest Avenue to Somersville Road2.9 miles6 minutesTuesday, 6–7A.M. 4.ChicagoStevenson Expressway/I-55 southboundState Street/Exit 293C to Pulaski Road/Exit 2875.7 miles10 minutesThursday, 4–5P.M. 5.Dallas-Ft. WorthLoop 820/I-820 westboundTX-26/Grapevine Highway to US-377/Denton Highway/Exit 193.1 miles6 minutesFriday, 5–6P.M. 6.HoustonUS-59 northboundBuffalo Speedway to I-454.8 miles7 minutesFriday, 5–6P.M. 7.SeattleI-405 southboundWA-520/NE 14th Street/Exit 14 to SE Coal Creek Parkway/Exit104.5 miles7 minutesThursday, 5–6P.M. 8.Washington, D.C.Capital Beltway/I-495 outer loopUS-1/Baltimore Avenue/Exit 25 to MD-97/Georgia Avenue/Exit 316.3 miles8 minutesWednesday, 8–9A.M. 9.BostonSoutheast Expressway/I-93 southboundI-90 to Freeport Street/Exit 133.7 miles6 minutesFriday, 4–5P.M. 10.PittsburghPenn Lincoln Parkway/I-376 eastboundLydia Street/Exit 2 to US-19/PA-51/Exit 53.4 miles9 minutesWednesday, 8–9A.M. 11.Austin, Texas1-35 southboundUS-183/Exit 239-240 to Woodland Avenue6.7 miles10 minutesThursday, 5–6P.M. 12.MiamiDolphin Expressway/SR 836 westboundI-95 to FL-959/Red Road5.5 miles11 minutesFriday, 5–6P.M. 13.San DiegoCA-78 eastboundRancho Santa Fe Road to Mission Road4.2 miles5 minutesWednesday, 5–6P.M. 14.HonoluluLunalilo Freeway/I-1 eastboundHI-92 to S. Vineyard Boulevard/Ward Avenue3.9 miles9 minutesWednesday, 5–6P.M. 15.Minneapolis-St. PaulI-494 eastboundUS-212/Prairie Center Drive/Exit 1 to CR-32/Penn Ave/Exit 65.7 miles6 minutesThursday, 5–6P.M. 16.PhiladelphiaDelaware Expressway/I-95 southboundAcademy Road/Exit 32 to Girard Avenue/Exit 238.3 miles7 minutesTuesday, 8–9A.M. 17.New OrleansI-10 westboundCauseway Boulevard/Exit 228 to End Boulevard/Florida Boulevard5 miles5 minutesThursday, 5–6P.M. 18.BaltimoreBaltimore Beltway inner loop/I-695 northboundUS-1/Southwestern Boulevard/Exit 12 to Security Boulevard/Exit 175.3 miles4 minutesThursday, 5–6P.M. 19.AtlantaGA-400/US-19 southboundCA-120/Old Milton Parkway/Exit to GA-140/Holcomb Bridge Road/Exit 74.7 miles4 minutesTuesday, 8–9A.M. 20.Bridgeport, Conn.Connecticut Turnpike/I-95 northboundField Point Road to Mill Plain Road/Exit 2122.2 miles12 minutesFriday, 5–6P.M. 21.PhoenixPapago Freeway/I-10 westboundAZ-51/AZ-202/Exit 147 to 35th Avenue/Exit 1416.2 miles4 minutesThursday, 5–6P.M. 22.Sacramento, Calif.S. Sacramento Freeway/CA-99 southbound12th Avenue to Mack Road/Bruceville Road5.4 miles4 minutesWednesday, 5–6P.M. 23.San JoseBayshore Freeway/US-101 southboundFair Oaks Avenue to De La Cruz Boulevard4.2 miles5 minutesThursday, 5–6P.M. 24.Baton Rouge, La.I-12 eastboundEssen Lane to O'Neal Lane5.8 miles6 minutesThursday, 5–6P.M. 25.Riverside, Calif.Riverside Freeway/CA-91 westboundMcKinley Street to Auto Center Drive/Serfas Club Drive5.6 miles6 minutesMonday, 6–7A.M. Source: The Daily Beast, INRIX.

Traffic Congestion in U.S. Cities, 2002 RankUrban areaAnnual delay per person in hours 1. Los Angeles, Calif.136 2.San Francisco-Oakland, Calif.92 3.Washington, DC-Md.-Va.84 4.Seattle-Everett, Wash.82 5. Houston, Tex.75 6. San Jose, Calif.74 6.Dallas-Fort Worth, Tex.74 8.New York, N.Y.-Northeastern N.J.73 9. Atlanta, Ga.70 10.Miami-Hialeah, Fla.69 11.Chicago, Ill.-Northwestern Ind.67 11. Boston, Mass.67 11. Denver, Colo.67 14.Orlando, Fla.66 15.San Bernardino-Riverside, Calif.64 16.Ft. Lauderdale-Hollywood-Pompano Beach, Fla.61 16. Austin, Tex.61 18. Phoenix, Ariz.59 19. Detroit, Mich.55 20.Minneapolis-St. Paul, Minn.54 21. San Diego, Calif.51 22. Baltimore, Md.50 23.Portland-Vancouver, Ore.-Wash.47 23. Charlotte, N.C.47 25.Louisville, Ky.-Ind.46 26.Tampa-St. Petersburg-Clearwater, Fla.45 26. Albuquerque, N.M.45 28.Nashville, Tenn.44 29.Cincinnati, Ohio-Ky.43 29.W. Palm Beach-Boca Raton-Delray Beach, Fla.43 29. Indianapolis, Ind.43 29. San Antonio, Tex.43 29.St. Louis, Mo.-Ill.43 34. Sacramento, Calif.42 34.Philadelphia, Pa.-N.J.42 36.Providence-Pawtucket, R.I.-Mass.41 37. Las Vegas, Nev.38 38. Columbus, Ohio36 39.Tacoma, Wash.34 39.Memphis, Tenn.-Ark.-Miss.34 41. Milwaukee, Wis.32 41. Jacksonville, Fla.32 43.Birmingham, Ala.31 44. Colorado Springs, Colo.27 45.Charleston, S.C.26 46. Tucson, Ariz.25 46.Norfolk-Newport News-Virginia Beach, Va.25 46.Omaha, Neb.-Iowa25 49. Fresno, Calif.24 49. Honolulu, Hawaii24 49.Pensacola, Fla.24 NOTE: Study conducted in 75 urbanized areas. Source:Texas Transportation Institute, the Texas A&M University System.The 2002 Urban Mobility Report,David Schrank and Tim Lomax. Web: http://mobility.tamu.e du.

Nano: World's Cheapest Car: Nano Specs Cost: $2,500 Five-door hatchback Two-cylinder engine Speeds of up to 65 miles per hour Avg. MPG: 50 No: radio, air conditioning, power steering, or power windows The newest Nano has four wheels and runs on two cylinders. No, Apple Computer did not introduce a self-propelled MP3 player (not yet, anyway). The Tata Nano is a tiny, five-door hatchback that was unveiled at a car show in early January 2008 in New Delhi, India. A two-cylinder engine, which is located in the back, powers the car. The Nano, nicknamed the "People's Car," can reach speeds of up to 65 miles per hour and gets about 50 miles per gallon of gasoline, which is on par with most hybrids. The five-seat mini car, which looks a lot like a bubble on wheels, is about 11 feet long and 5 feet wide. Cheap but Spare At only $2,500, the Nano lacks many of the accessories and luxuries of other, more expensive cars. Indeed, it doesn't have a radio, air conditioning, power steering, or power windows, and the dashboard is adorned with only a speedometer, an oil light, and a fuel gauge. Ratan Tata, the chairman of the Tata Group, which developed the Nano, said he hopes to sell about one million of the cars in India. "We indeed have a People's Car, which is affordable and yet built to meet safety requirements and emission norms, to be fuel efficient and low on emissions," Tata said. He chose the name "Nano" because the word "connotes high-tech and small size," he said. Environmental Impact While some auto enthusiasts hailed the Nano for its fuel efficiency and low price, which will provide mobility to a much wider population in India, many environmentalists are concerned that a million new cars in India, the world's second-most-populous country, with a population of more than 1.1 billion, will contribute further to global warming. Indeed, India's emissions of carbon dioxide are the fourth highest in the world, and New Delhi, the capital of India, is the fourth-most-polluted city in the world. Some suggested that Tata should have used his significant resources to work toward improving India's mass transportation system rather than further clog India's already intolerably congested roads. "In my view, this represents a bankruptcy of policy as far as transport options are concerned," said chief U.N. climate scientist Rajendra Pachauri, who shared the 2007 Nobel Peace Prizewith Al Gore. "If our roads are going to be flooded with these cars by a few million each year, what is that going to do? Every car that goes on the road is going to use road space. Congestion and air pollutionare twin problems," he said. "Why not improve the quality and reliability of buses?"