* Neutral Density filters have several uses and offer the possibility of achieving otherwise impossible results. ND filters appear gray and reduce the amount of light reaching the film. ND filters also do not have an effect on color balance.
* Four main uses:
1.Enables slow shutter speeds to be used, especially with high-speed films, allowing film to record movement in subjects such as waterfalls, clouds, or cars.
2.Decrease depth of field by allowing wider apertures to be used, in turn helping to separate subjects from their background.
3.Decrease the effective ISO of high-speed film (above ISO 400) and allow it to be used outdoors in bright situations.
4.To allow picture and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes that can cause overexposure.
* ND2: reduce one gear of the aperture, average transmittance of 50%
* ND4: reduce two gear of the aperture, average transmittance of 25%
* ND8: reduce three gear of the aperture, average transmittance of 12.5%
Features Multipoint Technology For Switching Between 2 Bluetooth Phones With 1 Headset Noise-Canceling Microphone Filters Unwanted Background Noise Wind Screen Reduces Distracting Wind Noise
In the car, at the airport, or on the job, the Plantronics Voyager 520 delivers business quality audio performance, while its versatile design provides a secure fit for all day wearing comfort wherever your meetings take you. The noise-canceling microphone filters distracting background noise so you can be easily heard while the innovative wind screen minimizes wind noise. This user-friendly headset offers convenient one-touch call controls and a desktop charging cradle. And if you use two Bluetooth phones, the integrated multipoint technology lets you easily switch between them with the same headset. The battery provides up to eight hours of talk time and 180 hours of standby when fully charged. Features Noise Canceling Microphone: Reduces distracting noise so callers hear you, not your surroundings. Fits As Good As It Looks: The earloop swivels to fit either ear, and the proven design delivers a comfortable, secure fit. Less Wind Noise: Innovative wind screen reduces the wind noise that your callers hear. One Easy Button: Place calls, answer calls, and adjust the volume with one convenient button. Stay Connected: Multipoint technology allows you to stay connected with two Bluetooth mobile phones. Store and Charge: Compact desktop cradle for a convenient place to store and charge your headset. Easy Bluetooth Pairing: Plantronics QuickPair technology lets you easily pair the headset with your Bluetooth mobile phone. Hours of Active Use: Up to 8 hours of talk time and 180 hours of standby time from a single charge. Technology: Bluetooth 2.0, supporting devices with headset and hands-free profiles Range: Up to 33 feet (10 meters) Controls: Volume, call answer/end, last number redial, voice-activated dialing (requires compatible handset
Plantronics Voyager 520 Bluetooth Headset ?Retail Packaging? Reviews
Plantronics Voyager 520 Bluetooth Headset ?Retail Packaging? Reviews
PINK Crystal Rhinestone Mouse makes you the envy of all your friends with awesome sparkle. You can use this mouse with any laptop or computer. All you need is a USB input. Just plug the USB cord into the USB input and you are ready to go. This Crystal Rhinestone mouse has a left and right button and also a scroll wheel on it. When you plug this corded mouse in, it will light up with a blue and red LED lights. Compatible any computer or laptop that has a USB input.
Precise optical sensor
High quality mouse with easy to grasp design
Easy plug-n-play (no software required)
Compatible with PCs and Macs or any Computer with USB ports
The Astro Tech 5x APO Barlow uses a three-element air-spaced optical system with an ED glass element. Optics have been fully multicoated. The housing is CNC-machined aluminum, hard anodized black for a long life. The lens edges and inner barrel are blackened for high maximum contrast. There is a safety undercut on the barrel and a non-marring brass compression ring to hold your eyepieces firmly in place.
For the dollar this high power barlow lens can not be beat!
Three Element Air Spaced Design
The Astro Tech 5x Barlow Lens has an APO Optical System fully equipped with ED Glass
The optics of the Astro Tech 5x Barlow are fully multicoated
CNC Machined Body
Astro Tech 5x Apochromatic ED triplet Barlow for 1.25" AT5XB Reviews
Astro Tech 5x Apochromatic ED triplet Barlow for 1.25" AT5XB Reviews
This Extra Loud Big Button Cordless Telephone lets the hard of hearing adjust the volume and tone to meet their specific needs. Incoming sound is amplified up to 45 decibels and the extra-loud 95dB adjustable ringer is enhanced with a bright visual ringer. Extra large backlit keys with high contrast numbers make it easy to see and use. 13 speed dial buttons. Connects to assistive listening devices or headsets using a 2.5mm jack. Long range 900MHz transmission frequency reduces interference and is Wi-Fi friendly. Detachable belt clip for ease of mobility around the house. Eco-friendly and energy efficient operation. Hearing Aid Compatible and TIA-1083 Compliant. One year limited warranty.
