The Schneider 4 x 4" 4mm Clear True-Streak Filter is 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. 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.

Q: 2. 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: 3. 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: 4. Is it compatible with BMPCC4K? In case not, is there any adaptor?

A: Yes. The Blackmagic Design Pocket Cinema Camera 4K, B&H # BL4KPKCAM, uses the Micro Four Thirds lens mount, and the Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Micro Four Thirds uses the Micro Four Thirds lens mount, you may use the Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Micro Four Thirds on the Blackmagic Design Pocket Cinema Camera 4K. Do note that the Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Micro Four Thirds is a fully manual lens, so you would have to focus the lens manually and adjust the aperture of the lens using the aperture ring built onto the lens.

Q: 5. Will the Cokin Z-Pro Series Filter Holder Adapter Ring (95C, Coarse Thread) BH #COARZP95 • MFR #CZ495B fit the Nikon AF-S NIKKOR 200-500mm f/5.6E ED VR Lens?

A: Yes the Cokin Z-Pro Series Filter Holder Adapter Ring will fit the Nikon AF-S NIKKOR 200-500mm f/5.6E ED VR Lens.

Q: 6. Will this work with a Panasonic GH4? Or Panasonic S2?

A: This 7Artisans 4mm f/2.8 Circular Fisheye Lens for Micro Four Thirds can fit the Panasonic GH4. It does not work on the Panasonic S2.

Q: 7. Which mattebox works with theses lenses? So the mattebox is not visible in the picture?

A: It is not recommended to use a matte box with the Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Canon RF because with the amount of fisheye that this lens has, the matte box will be in the frame. The same thing will happen with a lens hood as well.

Q: 8. Will this work on a Canon R5? How much of the sensor would the circular image use actually fill?

A: The Canon R5 will be automatically set to Crop mode if you mount the Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Canon RF on it, so you would use only an APS-C size part of the full-frame sensor. The lens will make a circular image surrounded by black in this small section of the sensor.

Q: 9. Is this lens compatible with Canon EOS 70D? If not, is there an equivalent lens for my camera (DSLR)?

A: The Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Canon EF-M is designed for Canon mirrorless cameras that use the EF-M lens mount, while the Canon EOS 70D DSLR camera uses the larger Canon EF-mount and EF-S lens mount. The above lens would not be compatible for use on the Canon EOS 70D DSLR camera. If you are looking for a circular fisheye lens designed for the EF/EF-S lens mount used on the Canon EOS 70D DSLR camera, I would instead recommend the Lensbaby 5.8mm f/3.5 Circular Fisheye Lens for Canon EF, B&H # LE5835CFC, for your usage needs.

Q: 10. 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.