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Specifications:
- This is high quality gradual filters brand new
- Gradual Green Filter is made in a wide range of compound colors that blend harmoniously into the image
- Gradual Green Filter is a must have for digital users, because the digital sensor unlike film has very low exposure tolerance. Detail will be lost on both low and high light area. To correct this, you need gradual filter to balance it
- Gradual Green Filter is ideal for digital users to balance it when detail is lost on both low and high light area
- Gradual Lens Filter is designed for color, arose from the advances in color photography
- Square Green Filter permits selective color enhancement or modification without changing the subject
- Camera Lens filter is compatible with Cokin P series
Details:

- Cokin P Graduated/Gradual Green Filter is a filter that has color-toned in one half of the filter and have a smoothly graduated transition into the clear portion

- Gradual Green Filter features bright color, genuine transparency and long application life. Lens filter is ideal for digital users to balance it when detail is lost on both low and high light area

- Gradual Green Filter has a clear center spot which isolates and draws attention to your subject, surrounded by light green diffuser

- Colored and clear image portions can be brought into the desired position by adjusting the filter in the holder
What's the Camera Lens Filters:
- Camera lens filters still have many uses in digital photography, and should be an important part of any photographer's camera bag. These can include polarizing filters to reduce glare and improve saturation, or simple UV/haze filters to provide extra protection for the front of your lens
Lens Filter Type:
- The most commonly used filters for digital photography include polarizing (linear/circular), UV/haze, neutral density, graduated neutral density and warming/cooling or color filters
- Example uses for each are listed below:
Filter Type
Primary Use
Common Subject Matter
Linear & Circular Polarizers
Reduce Glare Improve Saturation
Sky / Water / Foliage in Landscape Photography
Neutral Density (ND)
Extend Exposure Time
Waterfalls, Rivers
under bright lightGraduated Neutral Density (GND)
Control Strong Light Gradients Reduce Vignetting
Dramatically Lit Landscapes
UV / Haze
Improve Clarity with Film Provide Lens Protection
Any
Warming / Cooling
Change White Balance
Landscapes, Underwater, Special Lighting
Problems with Lens Filters:
- Filters should only be used when necessary because they can also adversely affect the image. Since they effectively introduce an additional piece of glass between your camera's sensor and the subject, they have the potential to reduce image quality. This usually comes in the form of either a slight color tint, a reduction in local or overall image contrast, or ghosting and increased lens flare caused by light inadvertently reflecting off the inside of the filter
- Filters may also introduce physical vignetting (light fall-off or blackening at the edges of the image) if their opaque edge gets in the way of light entering the lens (right example). This was created by stacking a polarizing filter on top of a UV filter while also using a wide angle lens-causing the edges of the outermost filter to get in the way of the image. Stacking filters therefore has the potential to make all of the above problems much worse

Note on Choosing a Filter Size for a Camera Lens:
- Lens filters generally come in two varieties: screw-on and front filters. Front filters are more flexible because they can be used on virtually any lens diameter, however these may also be more cumbersome to use since they may need to be held in front of the lens. On the other hand, filter holder kits are available that can improve this process. Screw-on filters can provide an air-tight seal when needed for protection, and cannot accidentally move relative to the lens during composure. The main disadvantage is that a given screw-on filter will only work with a specific lens size
- The size of a screw-on filter is expressed in terms of its diameter, which corresponds to the diameter usually listed on the top or front of your camera lens. This diameter is listed in millimeters and usually ranges from about 46 to 82 mm for digital SLR cameras. Step-up or step-down adapters can enable a given filter size to be used on a lens with a smaller or larger diameter, respectively. However, step-down filter adapters may introduce substantial vignetting (since the filter may block light at the edges of the lens), whereas step-up adapters mean that your filter is much larger (and potentially more cumbersome) than is required
- The height of the filter edges may also be important. Ultra-thin and other special filters are designed so that they can be used on wide angle lenses without vignetting. On the other hand, these may also be much more expensive and often do not have threads on the outside to accept another filter (or sometimes even the lens cap)
Package Included:
- 1 x Gradual Square Green Filter for Cokin P Series
- 1 x Box
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Tarn
from ()
Bought this item on
01-13-2011- Other Thoughts: very good value. If you are looking for bang for the buck, this is it. If flare and ghosting matter to you, save your money and go for the professional line of filters
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Ellamay B. Ward
from ()
Bought this item on
03-22-2011- Other Thoughts: They are a great deal. If you demand higher filter resolution for VERY fine high resolution detail. Then buying the higher end Tiffen or other lens filters
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Ninon Nguyen
from ()
Bought this item on
01-26-2011- Other Thoughts: I took an advice from my friend and bought this filter to protect my expensive Canon lense. I got a lot of good pictures out of this filter. I did not get any glare and I can take picture of the water very clean and clear. I am extremely happy and I am sure you will like it
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Mark R. Wright
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Bought this item on
01-26-2011- Other Thoughts: This is my first ND filter so don't have a lot to compare it to, but the images so far are very nice allowing me to slow shutter speed down in a bright scene. The construction of the filter is superb and what you would expect for one in this price range.
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J. Johnson
from ()
Bought this item on
07-21-2010- Other Thoughts: Very clean piece of glass. I'm not to impressed with the color of the filter, would like it to be just basic black, but it'll do. I only use filters when I need to, not as extra piece of glass for safety. That's why I bought the ultra clear.
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