Schneider Optics 4x5.65" Circular True Polarizer Filter #68-013156 Serial #41C

Description: Schneider Circular True-Polarizing Filter (4x5.65") List Price is $444.00 Stock Code: 68-013156 Availability: In Stock The Schneider Circular True-Polarizing Filter (4x5.65") is by far the most effective polarizer for motion picture and television cameras. Having an extinction ratio of ER 374, the Schneider True-Pol is 12- times more effective than other polarizing filters, and is unmatched in its ability. The polarizing film in a Schneider True-Pol filter is laminated between two pieces of Schneider's crystal-clear, water-white optical glass. The filter is protected against edge-chipping and delamination by Schneider's unique Edge Seal, which also effectively reduces edge-reflections and flare. The absolute clarity of the glass combined with advanced polarizing material make True-Pol filters particularly effective on demanding scenes, as when shooting through windshields in rigged-cars. On such shots, Directors of Photography have found that Schneider True-Pol filters capture more color saturation, wider tonal range and much more contrast inside the car. Like all filters in the Schneider line, True-Pol filters are precision polished to the highest possible standards, meeting the most demanding specifications for optical flatness. Reduce glare and unwanted reflections Saturate colors Deepen blue skies Improve contrast Penetrate haze True-Pol Polarizing filters enable you to achieve a level of optical performance previously unavailable to cinematographers Schneider offers a circular True-Pol Polarizing filter for cameras which use polarizing elements in the beam-splitters of the viewing system, such as ARRI 435 and the Movie-Cam Compact. This filter may also be required on certain high definition video cameras with complex optical blocks such as the Sony PMW-EX1, PMW-EX3, and PDW-700 which polarize the red an blue channels more than other cameras and therefore require a circular polarizer to prevent cross polarization and associated color shift in the image. Beam splitters send light in two directions: to an eye-piece and to a video tap. Light in a camera’s viewing system can become polarized, and when a standard (linear) polarizing filter is attached to the lens, the light becomes cross polarized. This hinders visibility and may create total black-out of the viewing image and/or the video tap. Schneider Circular Polarizers feature a two layer design to prevent this blackout. The first layer is made up of the same polarizing material used in all True-Pol filters; the second layer is a 1/4- wave retarder plate which effectively prevents cross-polarization. High-Quality Construction Schneider solid color filters feature crystal clear, water-white optical glass, protected against edge-chipping and delamination by Schneider's unique Edge Seal, which also significantly reduces edge reflections and flare Schneider Quality Control Schneider filters are ground and polished to a precise flatness and plane parallelism Because all Schneider filters are designed and manufactured with the highest possible degree of consistency, you can swap like filters mid-shoot with no discernible variation in color or effect. Type Circular True Polarizer Size 4x5.65" (100 x 140 x 4 mm thick) Grade Not applicable Filter Factor Between 2.3 and 2.8 (approx. +1.3 stops) Multi-Coated Yes Rotating No Effect Polarizer = Removes reflections and increases color saturation without affecting the overall color balance Application Nature, travel, outdoor photography Color Temperature Not applicable Construction Water White Schott Glass Front Filter Thread Size Not applicable Front Lens Cap Size Not applicable Schneider Optics has engineered a major improvement in motion picture and broadcast television image quality with the Schneider filter line. Diamond cut from crystal-clear, water-white optical glass, Schneider filters are ground and polished to a precise flatness and planeparallelism (the exact parallel relationship between the front and back filter surfaces that is so important to optical performance). Then, to ensure perfection, this is verified by a laser interferometer. Schneider filters are also checked with a densitometer for consistent density, and tested for proper light transmission with a spectrophotometer. Because all Schneider filters are designed and manufactured with the highest possible degree of consistency, you can swap like filters mid-shoot with no discernible variation in color or effect. The unprecedented purity, color saturation and repeatability of Schneider filters virtually eliminate the need for lab color timing corrections caused by other filters. This puts more creative control where it belongs, in your hands. What is the difference between a Linear and a Circular Polarizer? A Circular Polarizer is a Linear Polarizer with a 1/ 4 wave plate retarder added to the back of the polarizer foil. Circular Polarizers are necessary when using any camera that has a beam splitter which is used for internal light meter reading or a video tap. The beam splitter polarizes light and depending upon the position of the polarizer, you may cause double polarization and therefore result in inaccurate meter readings, in the case of a video tap a black out. Circular Polarizers are also necessary for auto focus cameras. TIP: In any case in which linear polarizing filters suffice, circular polarizing filters can also be used, but not the other way around. Circular is the best for all situations and worth the extra cost in our opinion. Normal 0 false false false EN-US X-NONE X-NONE TIP HOW TO PROLONGING THE LIFE OF YOUR FILTERS Filters, like all crafted optics, are susceptible not only to breakage, but to premature aging caused by environmental factors. Most filters are made up of several layers of materials consisting of glass, dyes, optical cements, chemical compounds, particles etc. Even with protective measures employed, there are many factors that can still affect the longevity of the filter: moisture (prolonged exposure to humidity), excessive heat and excessive light are the most common environmental causes that can affect the filter’s chemistry over time. To protect your filters and keep them in great working condition for a long time (along with the rest of your camera gear) we recommend making sure to keep the filters stored in a dark, cool, and dry place when not in use. The use of filter pouches or specialized cases will also keep your filters safe from breakage when not in use. If you are in a humid environment, the addition of fresh silica gel packs or a dehumidifier in the room they are stored is also highly recommended. Protecting your filters as you would your camera lenses will ensure many years of use of your filters. What do you recommend cleaning filters with? Hand blower first, if it's just light dust,that usually handles it. If you need to clean further, a Kim Wipe sprayed with Tiffen/Pancro Lens Cleaner, work in a circular motion from the middle out. We at Guru Enterprises in Chatsworth, CA thank-you for stopping by. Please keep us in mind for all your requirements in motion picture equipment in future. We deal in both - New & Used Gear. ~ Questions? Comments? Concerns? Call/Text/WhatsApp/Signal: 818 618-4495 - Guru Enterprises ~ $6.99 shipping in US by First-Class Mail. $9.99 by Priority Mail & $19.99 by FedEx 2 day Air. International Shipping will be $24.99 by Standard Shipping. FedEx Priority shipping $39.99 to most countries. Feedback is very important to us. We would appreciate if you would leave it for us once you have received your item. It lets us know you have received your item and are happy with your purchase. We request that you attempt to resolve a problem by first contacting us before leaving feedback as problems tend to be a straightforward case of miss-communication. Buyers shipping within the 36 States that require collection of Internet Sales Tax will be subject to sales tax. (California residents will have to pay 9.5% for sales tax.) We guarantee each item we sell on eBay to be exactly as described. If a buyer receives an item and is not as described, they can return the item within 14 days for a refund. Email for more information. We strive to offer courtesy to my customers. We hope that we have described the item to complete satisfaction. Please email with any questions if we have forgotten something. 20 HAPPY YEARS OF SELLING & BUYING ON EBAY ! Buy with confidence ~ ~ check our excellent feedback! FAST SHIPPING Most our items are in stock and We strive to ship within 24-48 hours of payment. KEY WORDS: ARRI ARRIFLEX RED TIFFEN PANAVISON 800

Price: 340 USD

Location: Chatsworth, California

End Time: 2024-02-27T06:21:31.000Z

Shipping Cost: 6.99 USD