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Posts Tagged ‘Helicopters’

what settings should I set my Nikon D-300 to capture the best sports action without blur?

July 13th, 2012 4 comments

I’m Trying to get fast moving pictures and this is a new camera to me, and I’m not sure what the best setting for this would be. If you know I would greatly appreciate it.

There is a couple of details you left out that are important…What focal length lens do you have, what are you photographing, and is it indoor or outdoor.

Generally speaking, I use a 70-200 f2.8 Vr lens for sports photography like soccer, hockey etc. Indoor lighting quite often is less than perfect, so I shoot in full manual mode then. Somewhere around 1/250th or 1/500th is good. You will need to use slower ISO and wider aperature settings to achieve this sometimes…

Outdoors on the soccer field or baseball diamond, I usually set aperture priority mode and set the aperture to f4, which is one stop from wide open on my lens. This is the sharpest setting on my lens. I set the ISO at 200 and just keep an eye on the shutter speed to make sure it doesn’t fall too low. If it does, push the ISO up to 400 or 800. Or even higher if you need to.

Sometimes you may want to keep some blur in the image to show motion. For instance…a cyclist riding past you. If you use a very high shutterspeed you will freeze the cyclist, but you will also freeze the spokes of the wheels and the bicycle is just standing there. Sometimes a slower shutter speed and panning with your subject as it moves past is best. That way you freeze the cyclist, but the wheels still show some motion.

Just as an example I photograph a lot of aircraft in flight. Helicopters with frozen rotor blades looks silly in the sky! Helicopters should be photographed usually no faster than 1/80th of a second, a propeller driven aircraft no faster than 1/125th or 1/250th or you freeze the props!

For photographing aircraft I use shutter priority and specify these speeds. The camera looks after the correct aperture for the exposure.

Action Sports Photography Home

September 2nd, 2011 No comments

XAircraft X650 is a remote manage 4 rotor mini helicopter developed for the model aircraft enthusiasts which powered by lithium battery. It flies stably by 4 properly controlled individual propellers(12-inch 60-pitch) direct-driven from 4 brushless motors. Fly forward, backward, left, perfect, up, down… by radio manage equipment. Compared with regular helicopters, the X650 quadcopter/quadrotor is a perfect platform for initially individual flight(FPV) to bringing you a brand-new flying expertise.

Support 13 sensors as flight attitude, height, direction, position (XAircraft GPS Module-Demand further acquire), temperature, and energy consumption. With the support of XAircraft flight manage algorithms, the X650 is much easier to fly than other sorts of helicopters, and has rather high quality stability.

XAircraft was established in April 2007, focused on 4-rotor aircraft investigation and development, the initial team members primarily from Microsoft. NET Club, they enjoy technologies and think that technologies can alter lives. Their merchandise are identified for expense-useful, excellent, functional scalability, parameter setting freedom.

Frame
X650 quadcopter/quadrotor primarily use aluminum alloy and glass fiber supplies make confident the mechanical structure is durable and shatter-resistant.

Anti-Vibration Camera Mount
Produced of glass fiber. Damping style plus flight manage algorithms ensures the high excellent of the pictures and videos taken in flight period. The damping style filter the high-frequency vibration, and the flight manage algorithms manage the steering gear to filter the low frequency jitters and make the equipment balance automatically.

Propeller – BrushLess Motor
Exclusive effective propellers, high quality excellent in folding endurance and breaking-proof. It will not very easy to crack at low temperature. The temperature ranges from -10℃ to 50℃(14℉-122℉). Propellers driven by brushless motors deirectly deliver efficiency of up to 9g/W under rated load, every single group of propeller and motor can deliver thrust as considerably as 700g, which ensures the sate flight with 1600g take-off weight at most.

Flight controller
Deliver 12-channel manage signals input, X650 quadcopter/quadrotor will need 4 channels for standard flying at least, if you want to adjust the shutter and the camera angle, you will need two further channels, the remaining channels for extension working with, such as GPS fixed-point, fixed height, fixed direction.

X650 Flight Manage Unit
three-axis gyroscope
three-axis acceleration sensor
Optional three-axis magnetic field sensor
Output: Euler angles (Pitch, Roll, Yaw) (units deg), three-axis angular velocity (in deg/s), three-axis acceleration (in g)

X650 Input, Output and Manage Unit
12-channel remote manage input
12-channel manage signal output, ALL channel support UltraPWM ESC, General Electric Adjustment, high-speed digital servo, general servo.
two built-in modules: input manage signal module and output module
five expansion module interface for connecting AHRS, GPS, RF modules.
1 Link interface for connecting USB-Link or wireless module.

X650 ESC-A4 High-Speed (UltraPWM) Electric Manage Device
4 Electric manage device developed into 1, line connect very easy and secure.
Up to 60 MOS, able to withstand the high existing.
Continue to deliver 35A output existing in the 3s battery.
5A output capacity integrated(UBEC).
Support UltraPWM protocols and the manage frequency up to 500Hz (2ms).

Attributes:
Embedded AVR and 51 chips, MCU structure, balance manage guarantee.
3 extremely trustworthy axis gyroscopes and accelerometer.
USB interface for communication among PC and X650.
Compatible typical aircraft remote manage as Futaba FF9, JR9X2 and new two.4G radio and so on.
Weight:900g(Excluding receiver and battery)
Payload Capabiltiy:700g
Maximum Gross Take-Off Weight1600g
Airborne Period>12min(with 3S 33oomAh battery, payload under 1500g)
Battery:3S 2200mAh ~ 5500mAh/4S 1800mAh ~ 5500mAh Lithium Polymer
Battery Continuous Discharge:15C
Battery Connector: T sort connector