ReviewsColor Glass Bandpass Filter

Vivitar 3 Pc Filter Kit 52MM Uv/cpl/fdl

Multi-coated optical glass for enhanced optical resolution..
FILTER UV: Protects your camera's lens from scratches, dust, dirt, moisture, and fingerprints, while reducing unwanted ulra-violet light..
FILTER FD: The F-DL fluorescent light correction filter gives true-to-life color rendition by removing the harsh yellow-green cast.
FILTER PL: Polarizers let you achieve vibrant color saturation..
When shooting under natural light, a fluorescent filter dramatically increases color saturation of subjects..

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Kolari Kolari Pro 77mm IR ND 15-Stop Filter

Color Perfection: Optically engineered to be the most neutral filter in the visible light spectrum and beyond into the infrared range. This filter delivers the most neutral darkening in every wavelength, and at every angle. Ultra-wide angle tested and approved for excellent vignetting and color cast performance. Designed for whatever you can throw at it..
Ultra Strong Gorilla Glass: Built with premium ultra-thin, ultra-strong Corning Gorilla Glass, this filter is more than two times stronger than Schott B270 glass to direct impacts, and more resistant to scratches for better long term durability, all while also boasting a high internal transmission and lower refractive index than Schott B270 for sharper images..
Premium Coating: We topped off the perfect glass with premium coatings to make the already durable glass water, oil, and scratch resistant, while reducing reflectivity..
The Perfect Grip: We added a two stage knurling to the edges of our professional brass rings to make the ultimate high friction grip for easier handling with gloves or dry hands in any weather..
Lifetime Warranty: We're confident in our filters performance and durability and back each individual unit with our Lifetime Warranty..

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77mm Circular Polarizers Filter, K&F Concept Waterproof Circular Polarizing Filter with 24 Multi-Layer Coatings CPL Filter for 77mm Camera Lens

【CPL Filter Function】Circular polarizing filters allow you to remove unwanted reflections from non-metallic surfaces such as water, glass et. Also can enhance the color contrast and saturation especially be used on blue skies and white clouds..
【24 Multi-Layer Coatings】Double side polishing technology on glass, waterproof , oil-proof nanometer coatings protecting the filter and reduces reflections came from the filter iteself, durable enough..
【Ultra Slim Aviation Aluminum Frame 】Only 5.3 mm thickness, avoids vignetting on wide-angle lens, with CNC-Non slip design for easily remove and install the filter..
【Import AGC Glass】The cpl filter made by import Japanese optical AGC glass, ensures the HD images quality..
【Note】This filter only fit 77mm camera lens , please verify your lens size before ordered it. The number besides"Ø" (diameter) symbol represent your lens size , please choose the same size filter..

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82mm Circular Polarizers Filter, K&F Concept Waterproof Circular Polarizing Filter with 24 Multi-Layer Coatings CPL Filter for 82mm Camera Lens

【CPL Filter Function】Circular polarizing filters allow you to remove unwanted reflections from non-metallic surfaces such as water, glass et. Also can enhance the color contrast and saturation especially be used on blue skies and white clouds..
【24 Multi-Layer Coatings】Double side polishing technology on glass, waterproof , oil-proof nanometer coatings protecting the filter and reduces reflections came from the filter iteself, durable enough..
【Ultra Slim Aviation Aluminum Frame 】Only 5.3 mm thickness, avoids vignetting on wide-angle lens, with CNC-Non slip design for easily remove and install the filter..
【Import AGC Glass】The cpl filter made by import Japanese optical AGC glass, ensures the HD images quality..
【Note】This filter only fit 82mm camera lens , please verify your lens size before ordered it. The number besides"Ø" (diameter) symbol represent your lens size , please choose the same size filter..

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K&F Concept 82mm HD Soft GND8 Lens Filter, 3 Stop (0.9) Soft Graduated Neutral Density Filter with 28 Multi-Layer Coatings Waterproof/Scratch Resistant/Anti-reflectivity for Camera Lens

【Function】 GND8 (GND0.9) Soft Graduated Neutral Density Filter helps manage the lighting condition during golden hours ,balancing the light between ground and sky to achieve better cloud detail & color saturation..
【Information】 GND8 filter 3 stop(0.9) , the transmittance is 12.5%, compared with other same products in market (2%-4%) reflectivity K&F GND8 filter reflectivity only 1.25%, better than other products..
【Import Optical Glass】 This GND8 filter made by optical glass , each side of this glass with waterproof ,scratch resistant and oil proof coating, easily for cleaning and carrying , suitable for all the adventures..
【Nanotec Coating】Both side of of the glass with double side polishing technology , ensuring high quality images even on telephoto lens, the gradient coating technology ensuring uniform color and accurate stop , dimming without deviation..
【No Vignetting Frame 】Ultra slim aviation aluminum glass frame with non-slip CNC design , eaily install on lens , no vignetting and dark conner even on wide angle and telephoto lens..

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K&F Concept 52mm HD Soft GND8 Lens Filter, 3 Stop (0.9) Soft Graduated Neutral Density Filter with 28 Multi-Layer Coatings Waterproof/Scratch Resistant/Anti-reflectivity for Camera Lens

【Function】 GND8 (GND0.9) Soft Graduated Neutral Density Filter helps manage the lighting condition during golden hours ,balancing the light between ground and sky to achieve better cloud detail & color saturation..
【Information】 GND8 filter 3 stop(0.9) , the transmittance is 12.5%, compared with other same products in market (2%-4%) reflectivity K&F GND8 filter reflectivity only 1.25%, better than other products..
【Import Optical Glass】 This GND8 filter made by optical glass , each side of this glass with waterproof ,scratch resistant and oil proof coating, easily for cleaning and carrying , suitable for all the adventures..
【Nanotec Coating】Both side of of the glass with double side polishing technology , ensuring high quality images even on telephoto lens, the gradient coating technology ensuring uniform color and accurate stop , dimming without deviation..
【No Vignetting Frame 】Ultra slim aviation aluminum glass frame with non-slip CNC design , eaily install on lens , no vignetting and dark conner even on wide angle and telephoto lens..

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K&F Concept 82mm Variable ND Lens Filters Kit 1-5 Stops & 5-9 Stops (2 Pack) Adjustable Neutral Density Lens Filters Set for Camera Lens

【Light Reduction Function】The ND filter’s main function is to via rotating the stops, control the entry of light without affecting the overall color balance, for long exposure, and motion blur techniques in changing light..
【No “X” Cross】K&F Concept utilizes cutting-edge technology with a self-lock filter frame while the filter rotating to the Mini(ND32) or the Max (ND512) will hard stop, the filter support no vignetting on wide-angle and telephoto lens ( no more than 16mm)..
【28 Multi-Layer Coatings】Both sides of the glass with nanometer coatings, are waterproof and scratch resistant, effectively reduced the reflectivity and glaring, with no color cast of the image..
【Imported AGC Glass】Made by import Japanese AGC optical glass, CNC-non slips 7.6mm lightweight aviation aluminum frame design preventing wide angle vignetting..
【NOTE】This Filter is compatible with all 82mm lenses. Please verify your camera’s lens thread size before ordering. The number is always beside the “ø” (diameter) symbol..

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Portable TinySA Spectrum Analyzer, SEESII Upgraded V0.3.1 Tiny Frequency Analyzer with Antenna SMA Male to UHF Female Cables, 100kHz to 960MHz MF/HF/VHF UHF Input, 2.8'' Touchscreen Signal Generator

【Frequency Range 】Tiny Spectrum Analyzer with two inputs, high quality MF/HF/VHF input for 0.1MHZ-350MHz, lesser quality UHF input for 240MHz-960MHz. Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz. Color display showing 290 scan points covering up to the full low or high frequency rangefrequency range. The tinySA contains all the components of a conventional heterodyne swept spectrum analyzer..
【Built-in Calibration Signal Generator】When not used as Spectrum Analyzer it can be used as Signal Generator, MF/HF/VHF sinus output between 0.1MHZ-350MHz, UHF square wave output between 240MHz-960MHz. Built-in calibration signal generator that is used for automatic self test and low input calibration..
【Tiny Spectrum analyzers】Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz.Color display showing 290 scan points covering up to the full low or high frequency range. Bulit-in rechargeable battery allowing a minimum of at least 2 hours portable use..
【PC Control】Connected to a PC via USB it becomes a PC controlled Spectrum Analyzer.The USB interface implements the Serial over USB (CDC) protocol and there is a large set of commands that can be invoked over the serial interface. These co....

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Infinity Kappa 63XF 6-1/2" 2-Way Speakers, Black, (INFSPKKA63XFAM)

...o optimize system linearity based on installation location..
3-way Upgradability - Kappa 2-way component system crossovers are compact and equipped with 2-way and 3-way selections to accommodate a 2” or 3” midrange upgrade. The optional 2” or 3” midrange includes a bandpass crossover to upgrade a two-way system into a three-way system with perfect tonal balance..
Slim and Smart Crossover Design - Kappa component systems all have very slim crossovers, which equipped with connection cable for easy installation. The push-button on crossover allows tweeter output level control of 0dB or -3dB to optimize system linearity based on installation location..

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Antenna Combiner MX72 VHF+UHF Duplexer 144-148MHz/ 400-470MHz Different Frequency Indoor Transceiver

❤️Duplexer :MX72N duplexer is a series of inductors and capacitors used as bandpass filters.Used for different frequencies and cannot be sent at the same time..
❤️After-sales service: We provide a 12-month product warranty and a 30-day money-back guarantee. If you have any questions or concerns, please contact us. Our professional and reliable customer service will do our best and provide you with satisfactory solutions within 24 hours, please rest assured to buy..
❤️ Two different ways：MX72N duplexer can be used in two different ways..
❤️Working principle: Combine the output of the HF/VHF transceiver and the output of the UHF transceiver so that both transceivers can be connected to the same antenna..

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SmallRig 4 x 5.65 ND1.2 Filter (4 Stops), 4mm Thick Square Neutral Density Density Filter, with Multi-Layer Coatings Schott B270 Optical Glass, Fits for Matte Box – 3589

【HD Cinematic ND Filter】SmallRig 4×5.65” ND1.2 Filter 3589, measuring 143.45 x 101.55mm, is designed for professional photographers/filmmaking. Our Neutral Density Filter is used to balance the exposure, suitable for sunset/sunrise/sky photography or cinematic scene. This 4mm thick filter is ideal for SmallRig Matte Box 2660, Mini Matte Box 3196, and Fitter Frame 3319.
【SCHOTT B270 Optical Glass from Germany】High clarity, high transmission B270 optical glass is precisely ground and polished for use with lenses of various focal lengths without compromising image sharpness..
【6.25% light transmittance】The 4 x 5.65″ filter features 6.25% light transmittance, with four stops of light blocking. The filter has high-accuracy color reproduction at moderate color temperature with little loss of detail across the image, which is ideal for video or film shooting.
【Double Layer Nano-coating】The filter is coated on both sides with multi-layer Nano, protecting against scratches, water, oil, and fingerprints. Easy to clean. A plastic storage box is for you to store the carry the filter with you without damaging it.
【Specifications】 The weight is only 147g, with 4mm thickness and 143.45 x 101.55mm size, no color cast.

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