The Schneider 4x4" 4mm Clear True-Streak Filteris designed to be used perpendicular to a point light source such as the sun, a light bulb, or a candle. Within the filter's glass is a combination of fine line types whose action is limited to point light sources. Upon those light sources, those lines create the effect of a scene or image that has been recorded with an anamorphic lens and then displayed using a complementary reverse projection lens. This can result in prominent, elongated streaks that are symmetric and extend horizontally from each point light source for the purpose of drawing attention to a specific part of the frame, or to create a visually dramatic effect.

If an image or footage is captured with an anamorphic lens for the primary purpose of obtaining a greater aspect ratio than what is possible when only using spherical lenses on a 35mm format, the direct result will appear compressed and distorted. Projecting this compressed and distorted footage or imagery through a reverse anamorphic projection lens allows elements within the scene to be viewed in their correct proportions. A complementary effect of this process after it is completed is the creation of elongated, blue-colored, horizontally symmetrical highlights from point light sources that can extend through the frame.

Many cinematographers and photographers find this effect desirable and the Schneider 4 x 4" 4mm Clear True-Streak Filter is intended to allow such highlights to be easily reproduced when using optics that do not have an anamorphic design. This filter renders the streaks it helps to create with no color, instead of the blue highlights generated when using traditional anamorphic optics that are not designed to suppress streaking. Clear True-Streak Filters allow existing colors or lack of colors displayed by point light sources to be maintained, while True-Streak Filters that are formulated to create red, orange, yellow, green, blue, pink, or violet banding are also available.

The line types within this filter's glass are placed 4mm apart from each other. True-Streak Filters with spaces of 3mm, 2mm, or 1mm between their lines are also available where this filter type's effect becomes progressively stronger as the spacing between those lines is decreased.

This filter is most effective for pictures where the light source used to generate the streak effect is a highlight with a significant degree of contrast from the rest of the image. It is constructed from water white glass for clarity as well as color fidelity.

Streak Effect from Point Light Source    Anamorphic, Symmetric, Elongated Streaks    Horizontal Streaks from Light Source    Clear, Colorless Streaks    Water White Glass Construction    Padded Pouch

• Creates prominent, elongated streaks that are symmetric and extend horizontally from point light sources within a scene
• Draws attention to a specific part of the frame, or can create a visually dramatic effect
• Allows the effect of anamorphic optics upon highlights to be reproduced when using optics that do not have an anamorphic design
• Creates clear, colorless streaks
• Constructed from water white glass for optical clarity and color fidelity
• Padded pouch included for storage and transport

Related Questions and Answers

Q: 1. helloThe item, are there original packaging?? holder is - Schneider exterior carton, serial No. 68-885603? built plastic bag is - Lee FK 4mm Filter Holder?? filter is - Schneider 4x5.65 Graduated Neutral Density Water-White Glass Filter - Soft Edge with Vertical Orientation?? Can i choose - (ND) 1.2?regards

A: This is a genuine Schneider product in its original packaging, yes. For sales inquiries, please email us directly at sales@a href= http://bhphoto.com target= _blank bhphoto.com./a

Q: 2. does the 81.5 mm fit an 82mm step up? why 81.5mm?

A: I'd measure the outside diameter of the the step up with something accurate like vernier calipers or a micrometer. I purchased the 90mm push on Cap to fit a Schneider centre ND filter which I measured to be exactly 90mm outside diameter and the cap was a fairly tight fit.

Q: 3. Will this filter fit into the drop in filter holder used in the Nikon 200-400 f/4 lens?

A: That is the correct filter for the 200-400 drop in holder.

Q: 4. Does this filter out UV (Ultra Violet) light? I contemplate use with full spectrum cameras.

A: The Nikon Neutral Clear Filter (67mm) is not a UV filter--it's a clear glass protective filter.

Q: 5. just curious if it is hard to focus with this fisheye?

A: As a fisheye lens, the 7artisans Photoelectric 4mm f/2.8 Circular Fisheye Lens has a deep depth of field and a short focus throw so it is very easy to focus.

Q: 6. Will this work with my Canon RF 70-200mm f/2.8 lens?

A: Yes, the Canon 70-200mm f2.8 RF mount lens uses any 77mm filter.

Q: 7. will this fit a Hasselblad lens?

A: This all depends on the lens that you purchased. If the front element of the lens is a 77mm, then this filter will work just fine, if not, you will nee to use either step-up or step-down rings accordingly.

Q: 8. It says there are three 4x5.65 filters but it also mentions an ultra circular polarizing filter. I only see 3 square filters in the photo. Does this kit include a circular polarizing filter?

A: The filter on the right is a polarizing filter and rotates in a filter holder to achieve the polarizing effect.

Q: 9. Will this 95mm Nikon NC filter fit on a Nikon 200-500mm DSLR lens and allow attachment of the lens hood for this lens?

A: Yes the Nikon Neutral Clear Filter (95mm) does not interfere with use of the hood on the Nikon 200-500mm lens.

Q: 10. Will this filter work on a Nikon P530?

A: Hi, If you have the right size, the filter will work with the Nikon P530. It is not about the camera- the UV filter takes out the haze and I think helps. The filter also can help to protect your lens from dirt and scratches.