Posts filled under #nikonphotographers

Deiim alan Andrey Bryukha

Deiim alan Andrey Bryukhankov Beylikdz ETU Avrupa Triatlon Kupasi 2017 Birincisi / transtion area of Andrey Bryukhankov , first place in elite man in Beylikdz ETU Triathlon Cup #triathlon #nikontop #swimbikerun #instasports #instatri #photo #runbikerun #action #barisbarlas #barisbarlasphotography #triatlon #itu #etu #turkishtriathlon #istanbul #teamrussia #nikond3 #nikon_photography #ironman #nikonphotographers #triathworld #triathlonofficial @turkiyetriatlonfederasyonu @european.triathlon.union @itutriathlon

Ece Bakc (TUR) ve pek Ozt

Ece Bakc (TUR) ve pek Oztosun (TUR) su knda stanbul ETU Avrupa Triatlon Kupasi 2017/ Ece Bakc (TUR) ve pek Oztosun (TUR) running out of the sea heading to T1 elite women in stanbul ETU Triathlon Cup #triathlon #nikontop #swimbikerun #instasports #instatri #duatlon #duathlon #photo #runbikerun #action #barisbarlas #barisbarlasphotography #triatlon #itu #etu #turkishtriathlon #istanbul #teamturkey #nikond3 #nikon_photography #trigirlz #nikonphotographers #triathworld #triathlonofficial #finish #run #swim #bike

The Shah Mosque, also kno

The Shah Mosque, also known as Jaame' Abbasi Mosque or Imam Mosque after Iranian revolution, is a mosque in Isfahan, Iran, standing in south side of Naghsh-e Jahan Square. Built during the Safavid Empire, ordered by Abbas I of Persia. Panasonic GH5 + 8mm #nikonrussia#tourism_iran #panasonic_mea #baartarinha #nikonphotographers #nikonnofilter #nikonphoto_ #gopro #ir_ig #nikon_photography#_ #nikonworld_ #aksiine#lenzak#phototraveling #longexposure#akas_khoone #amazing_longexpo #nikonitalia#yourshotphotographer #southbeach#aksiine #sunsetsrussia #special_shots #photographer #nikontop_ #iran_landscapes #pro_ig @lenzak_photography @nikontop #photographerlife #isfahan #baartarinha @wildlifeplanet@canonaustralia@nikonusa @natgeolandscape @nikon_australia @natgeo @your.shot#panasonicgh5

Sri Lankan Elephant (Elep

Sri Lankan Elephant (Elephas maximus maximus) It is world elephant day, we must remember that these magnificent giants are essential to our forests and steps need to be taken to stop their numbers from dropping. Deegadantu 2 on the banks of Kala Wewa. #wildlifephotography #wildlife #srilanka #kalawewa #elephant #tusker #worldelephantday #Nikon #safari #traveller #wild #livingthedream #Photography #wilderness #naturelovers #adventure #nature_perfection #naturephotography #explore #discover #planetearth #wildplanet #dslrofficial #instanature #travelandBeyond #nikonphotographers #igscwildlife On safari with #leopardtrails @thephotosociety @wildplanetphotomag @thehopperisland @natgeo @nhm_wpy @londolozi @andbeyondkirkmanskamp @sanctuaryasia @capturethewild @leopardtrails @natgeowild

@sanctityofspace collecti

@sanctityofspace collection // A phenomenon of the Ruth Glacier Alaska. While filming on the glacier @freddiewilkinson noticed a couple hundred ft wide bubbling pool about a mile away from the terminus of the main glacier. The Ruth Glacier is among the thickest glaciers on earth at around 4000ft but is melting fast with the effects of climate change. We have asked a few friends but are still unsure if this is natural or abnormal. The forces seem accelerated these days as water is drawn down 'moulins' or shafts in the glacier only to emerge in such a startling high volume pool so far down valley. The inner workings are a bit of a mystery and scientific study waiting to happen but I can't help but think of it as one of my favorite places bleeding out under a warming planet. For more images of the Alaska range see @renan_ozturk @sanctityofspace. ~ Aerial DP's @camp4collective @ansonfogel @zatzworks --------------------------------------------------------- @renan_ozturk # Nikon_Hunt ---------------------------------------------------------- Thanks @renan_ozturk for this stunning video! Tag #nikon_hunt if you'd like to be featured on this page #nikonphotographers #nikonnofilter #nikoncamera #nikonistas #nikonphoto_ #nikonusa #nikonphotographer #nikonlove #nikonian #gopro #nikon #earthpix #earthonlocation #earthfocus #bbctravel #bbcearth #500px #vsco #filmphotography #vsco #earthonlocation #earthpix #vscolovers #natgeoyourshot #natgeochannel #natgeophotography #natgeo #life

// Rain wisps dancing ove

// Rain wisps dancing over Wolf's Head peak in the Wind River mountain range of Wyoming. This designated wilderness is part of the Bridger-Teton National Forest and is also one of the most intact temperate/alpine ecosystems in the world. ~ While spending the last week here climbing with @taylorfreesolo, we saw the effects of climate change induced beetle kill that has swept over most other parts of the Rockies within the last few decades. The forests throughout the Winds used to be the last vestige of safety for trees like the Whitebark Pine because it stayed colder here. But now even in this high alpine range the winters are warmer, the cold snaps fewer, and the beetle populations are flourishing. #windriverrange #actonclimate @treefighter @austin_siadak @jackrees20 ---------------------------------------------------------- @renan_ozturk # Nikon_Hunt ---------------------------------------------------------- Thanks @renan_ozturk for this stunning video! Tag #nikon_hunt if you'd like to be featured on this page #nikonphotographers #nikonnofilter #nikoncamera #nikonistas #nikonphoto_ #nikonusa #nikonphotographer #nikonlove #nikonian #gopro #nikon #earthpix #earthonlocation #earthfocus #bbctravel #bbcearth #500px #vsco #filmphotography #vsco #earthonlocation #earthpix #vscolovers #natgeoyourshot #natgeochannel #natgeophotography #natgeo #life

An extract on #nikonphotographers

If the same lens focal length is used in both formats, magnifications can be maintained in the ratio of the format sizes by adjusting subject distances; the DOF ratio is the same as that given above, but the images differ because of the different perspectives and angles of view. If the same DOF is required for each format, an analysis similar to that above shows that the required f-number is in direct proportion to the format size. Another approach is to use the same focal length with both formats at the same subject distance, so the magnification is the same, and with the same f-number, D O F 2 D O F 1 c 2 c 1 = l 2 l 1 , {\displaystyle {\frac {\mathrm {DOF} _{2}}{\mathrm {DOF} _{1}}}\approx {\frac {c_{2}}{c_{1}}}={\frac {l_{2}}{l_{1}}}\,,} so the DOF ratio is in direct proportion to the format size, due to the smaller format size having a smaller circle of confusion when the final image size is the same. The perspective is the same for both formats, but because of the different angles of view, the pictures are not the same.

Before each race (commonly known as a pass), each driver is allowed to perform a burnout, which heats the driving tires and lays rubber down at the beginning of the track, improving traction. Each driver then lines up (or stages) at the starting line. Modern professional races are started electronically by a system known as a Christmas tree, which consists of a column of lights for each driver/lane, and two light beam sensors per lane on the track at the starting line. Current NHRA trees, for example, feature one blue light (split into halves), then three amber, one green, and one red. When the first light beam is broken by a vehicle's front tire(s), the vehicle is "pre-staged" (approximately 7 inches (180 mm) from the starting line), and the pre-stage indicator on the tree is lit. When the second light beam is broken, the vehicle is "staged", and the stage indicator on the tree is lit. Vehicles may then leave the pre-stage beam, but must remain in the stage beam until the race starts. Once one competitor is staged, their opponent has a set amount of time to stage or they will be instantly disqualified, indicated by a red light on the tree. Otherwise, once both drivers are staged, the system chooses a short delay at random (to prevent a driver being able to anticipate the start), then starts the race. The light sequence at this point varies slightly. For example, in NHRA Professional classes, three amber lights on the tree flash simultaneously, followed 0.4 seconds later by a green light (this is also known as a "pro tree"). In NHRA Sportsman classes, the amber lights illuminate in sequence from top to bottom, 0.5 seconds apart, followed 0.5 seconds later by the green light (this is also known as a "sportsman tree" or "full tree"). If a vehicle leaves the starting line before the green light illuminates, the red light for that lane illuminates instead, and the driver is disqualified (also known as red lighting). In a handicap start, the green light automatically lights up for the first driver, and the red light is only lit in the proper lane after both cars have launched if one driver leaves early, or if both drivers left early, the driver whose reaction time is worse (if one lane has a -.015 and the other lane has a -.022, the lane of the driver who committed a 0.022 is given the red light after both cars have left)., as a red light infraction is only assessed to the driver with the worse infraction, if both drivers leave early. Even if both drivers leave early, the green light is automatically lit for the driver that left last, and they still may win the pass (as in the 2014 NHRA Auto Club Pro Stock final, Erica Enders-Stevens and Jason Line both committed red light infractions; only Line was assessed with a red light, as he was -.011 versus Enders-Stevens' -.002). Several measurements are taken for each race: reaction time, elapsed time, and speed. Reaction time is the period from the green light illuminating to the vehicle leaving the starting line. Elapsed time is the period from the vehicle leaving the starting line to crossing the finish line. Speed is measured through a speed trap covering the final 66 feet (20 m) to the finish line, indicating average speed of the vehicle in that distance. Except where a breakout rule is in place, the winner is the first vehicle to cross the finish line, and therefore the driver with the lowest combined reaction time and elapsed time. Because these times are measured separately, a driver with a slower elapsed time can actually win if that driver's advantage in reaction time exceeds the elapsed time difference. In heads-up racing, this is known as a holeshot win. In categories where a breakout rule is in effect (for example, NHRA Junior Dragster, Super Comp, Super Gas, Super Stock, and Stock classes, as well as some dial-in classes), if a competitor is faster than his or her predetermined time (a "breakout"), that competitor loses. If both competitors are faster than their predetermined times, the competitor who breaks out by less time wins. Regardless, a red light foul is worse than a breakout, except in Junior Dragster where exceeding the absolute limit is a cause for disqualification. Most race events use a traditional bracket system, where the losing car and driver are eliminated from the event while the winner advances to the next round, until a champion is crowned. Events typically use 4, 8, or 16 car brackets. Drivers are typically seeded by elapsed times in qualifying. In bracket racing without a breakout (such as NHRA Competition Eliminator), pairings are based on times compared to their index (faster than index for class is better). In bracket racing with a breakout (Stock, Super Stock, but also the NHRA's Super classes), the closest to the index is favourable. A popular alternative to the standard eliminations format is the Chicago Style format (also called the Three Round format in Australia), named for the US 30 Dragstrip in suburban Gary, Indiana where a midweek meet featured this format. All entered cars participate in one qualifying round, and then are paired for the elimination round. The two fastest times among winners from this round participate in the championship round. Depending on the organisation, the next two fastest times may play for third, then fifth, and so forth, in consolation rounds. Currently, an IHRA 400 Thunder championship race in Australia uses the format. The standard distance of a drag race is 1,320 feet, 402 m, or 1/4 mile. However, due to safety concerns, certain sanctioning bodies (notably the NHRA for its Top Fuel and Funny Car classes) have shortened races to 1,000 feet. Some drag strips are even shorter and run 660 feet, 201 m, or 1/8 mile. The 1,000 foot distance is now also popular with bracket racing, especially in meets where there are 1/8 mile cars and 1/4 mile cars racing together, and is used by the revived American Drag Racing League for its primary classes (not Jr Dragster). Some organisations that deal with Pro Modified and "Mountain Motor" Pro Stock cars (Professional Drag Racers Association) use the 1/8 mile distance, even if the tracks are 1/4 mile tracks.