} Linear Polarizers are used with most video and manual focus photo cameras. They are not recommended for auto-focus SLR cameras or cameras equiped with a beam splitting metering system. Linear Vs. CircularPolarizers There are two types of polarizing filters available linear or circular. Linear polarizers are more effective and less expensive than circular ones. But circular polarizers are needed with just about any camera that hasa BEAM-SPLITTING METERING SYSTEM, or AUTOFOCUS. The reason for this is that both of these systems use semi-silvered mirrors to siphon off some of the light coming through the lens. If that light is linearly polarized it renders either the metering or the autofocus ineffective. LINEAR Produces deeper colored blue skies, which at the same time creates a striking contrast with white clouds. Minimizes light reflections from glass and water Reduces glare from non-metallic surfaces. Provides a general color saturation to both cool and warm tones. Can be used in extremely bright light situations to reduce the amount of light entering the camera; this enables more selective depth of field control. Manufactured in self-rotating and drop-in formats. Note: using a Linear Polarizer on an auto focus camera with a beam-splitting meter will result in under-exposure of approximately 2-3 f:stops. Light is polarized by both the filter and the beam-splitting meter which results in double polarization. However, Linear Polarizers can be used with both non-auto focus and auto focus video cameras. CIRCULAR POLARIZER Provides the same filter effects as a Linear Polarizer, but is designed to work with auto focus cameras with beam splitting metering. The Circular Polarizer has linear polarizer construction plus a built-in 'Wave Retardant' to ensure proper exposure. The linear element polarizes the light, and the wave retardant de-polarizes it, and then the beam-splitting meter polarizes the light again for proper exposure. The use of a Linear Polarizer with a beam-splitting meter will result in underexposure. Also used in video for video assist. (video tap). Most modern SLR cameras use a polarizing half mirror (split beam metering) system andare designed to be used with a Circular Polarizer.If you own a modern SLR this filter will not work properly with your cameras metering system!!! WE WOULD STRONGLY SUGGEST REVIEWING YOUR CAMERAS MANUAL TO VERIFY WHETHER A LINEAR POLARIZER WILL WORK WITH YOUR CAMERA! Sorry to be so redundant with this but we want to make sure that you are ordering the correct Polarizer!
- Creates dramatic sky/cloud contrast.
- Mount rotates to control amount of effect.
- Saturates colors without changing color balance.
Return and Tax Policies
- All returns must meet our guidelines and include the Adorama or Rakuten.com Shopping Order#s
- Merchandise missing the original Universal Product Code (UPC) cannot be returned
- Ship to:
7 Slater Drive
Elizabeth, NJ 07206.
Items from the following categories may not be returned once opened:
- DVDs and video tapes
- Bulbs and flash tubes
- Ink cartridges
- Memory cards
- Any item which has been removed from its "blister-pack"
- Printerscannot be returned once toner, ink or ribbon cartridges have been installed
- Underwater photography equipmentcannot be returned once they have been used in water
- Notebooks and computerscannot be returned or exchanged once opened or unwrapped
New Jersey and New York state residents are subject to sales tax.
All California state residents are subject to sales tax by Rakuten.com Shopping
Duties and Taxes The recipient of an international shipment may be subject to import duties and taxes, which are levied once a shipment reaches your country and brokerage fees / custom clearance charges which may be imposed by the carrier . These charges must be borne by the recipient; we have no control over these charges and cannot predict what they may be. In the event a shipment is refused and returned, any taxes, duties, custom fees , brokerage fees or shipping charges incurred from this return, will be the responsibility of the customer.