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X4 CPL 49mm Circular Polarizer Filter – Schott B270 – MRC16 – Nano Coating – Weather Sealed – 25 Year Support by Breakthrough Photography

$129.00

  • WORLDS MOST COLOR NEUTRAL POLARIZER, GUARANTEED: A perfectly flat transmission curve would yield a perfectly color neutral result, and while there is no such thing as a perfectly neutral CPL filter (contrary to what other filter makers may claim) the X4 CPL is the most color neutral any CPL filter, guaranteed.
  • WORLDS MOST ADVANCED POLARIZER: All commercially available CPL filters exhibit a yellow cast due to a gradual transmission increase starting around 600nm and then spiking at 650nm onward into IR. With our X4 CPL film we achieved a gradual transmission decrease from 600nm onward, and instead of spiking uncontrollably near 650nm and far into infrared, the X4 CPL sees very controlled transmission into IR, without the curve spike. Result: Warm and lively images without the apparent colorcast.
  • X4 CPL (CIRCULAR POLARIZER) FILTER: The X4 CPL features SCHOTT Superwhite B270(R) optical glass, which is an ultra clear crown glass. It is produced by melting high purity raw materials and then made using the continuous draw process. The result is excellent transmission in the ultraviolet, visible, and infrared spectrums, and a high surface quality that accepts our state-of-the-art MRC and nanotec(R) coatings exceptionally well.
  • FITMENT: This CPL filter is compatible with all 49mm camera lenses. Your lens thread size will be printed underneath your lens cap or written somewhere on the lens barrel. Make sure you order the correct size otherwise it will not fit your lens.
  • 25 YEARS SUPPORT: We stand behind every CPL filter we make with our 25 Year Ironclad Guarantee. Every X4 CPL filter has a unique serial number laser engraved onto the interior frame. When you activate your 25 Year Ironclad Guarantee, we assign this serial number to you, so any future discussions on this unique filter are tracked, issues recorded and all that stuff which goes into future product design.
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Description

Product description

The Next Evolution of the CPL

The X4 CPL and the X4 Dark CPL filters are engineered to be the sharpest and most color neutral polarizers on the market.

Featuring our internally developed CPL film, state-of-the-art coatings and a precision machined brass traction frame, the X4 delivers unparalleled performance and durability.

World’s most color neutral CPL.

The X4 CPL features ultra-clear SCHOTT B270 optical crown glass made with the highest purity raw materials and our cutting edge MRC16 and Nano Coatings technology.

At the core of the X4 is our all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, we developed a unique approach specifically for precision optics.

The result is an incredibly sharp, color neutral CPL with the highest light transmission of any available polarizer.

The all-new X4 CPL has 4 Polarizer Guide Symbols (aka “CPL Guides”) on the outside of the filter frame:

HOW IT WORKS:

STEP 1: Look through the viewfinder and polarize the scene to the desired amount.

STEP 2: Note the position of the filter by observing which symbol is on the frame.

STEP 3: Rotate filter back to the same symbol as you switch from horizontal to vertical compositions

A winning design proven by outdoor photographers.

We engineer every one of our filters to withstand a lifetime of use in extreme wind, salt water, dust and any other abrasive elements found in nature.

The X4 CPL filter is precision machined from high-quality brass with our signature traction frame.

Our rugged design was developed for durability and to make it easy to securely attach and remove the filter – even with gloves in cold conditions.

Our team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use.

25 YEAR SUPPORT

We stand behind each filter with our 25 Year Support and US-based phone, email and live chat.

NANO-COATING

Each filter incorporates our state-of-the-art Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.

WEATHER-SEALED

Our X4 CPL filters are designed to hold up for years of regular use in the field. Each filter is weather-sealed and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.

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Shipping & Delivery

Shipping & Delivery

Thank you for shopping with us! Here is everything you need to know about our shipping and delivery process:

Order Processing

All orders are processed and prepared for shipment within 1–2 business days. Orders placed on weekends or holidays will be processed on the next business day.

Delivery Timeline

Once shipped, delivery usually takes 3–5 business days, depending on your location and the shipping method selected at checkout.

Order Tracking

As soon as your package is on its way, we will send you a confirmation email containing your tracking number and link so you can follow its journey.

Package Inspection

Please inspect your package upon delivery. If you notice any visible damage to the box, please refuse the delivery or report it to the courier immediately before signing.

Need Help?

If you have any questions about your shipment, feel free to contact our customer support team at info@gkmelectronics.com .