The Schneider 4 x 4" 4mm Yellow 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 Yellow 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 a yellow hue, instead of the blue highlights generated when using traditional anamorphic optics that are not designed to suppress streaking. True-Streak Filters that are formulated to create red, orange, green, blue, pink, or violet banding instead of yellow are also available, as well as Clear True-Streak Filters that can allow existing colors or lack of colors displayed by point light sources to be maintained.

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    Yellow Color for 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 yellow-colored 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. does this lens work with Sony A7rii mirrorless?

A: Yes, it will work but this is for a cropped sensor camera (aps-c) so you will be using about 40% of the sensor on the A7r2 and reducing resolution by about 40%.

Q: 2. Can this mount on my canon m50?

A: Yes you can! This lens is made to be mounted on the Canon mirrorless M mount cameras.

Q: 3. Will the image clear the grip of the Canon R7?

A: Yes, you can see a small portion of the grip, around the shutter button are when connecting Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Canon RF to a Canon R7 mirrorless camera.

Q: 4. 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: 5. Hi! Could you please tell me what the diameter of the front and rear elements of this lens are? Close approximations are fine! Thank you!

A: This is not a published specificatiopn. Please contact the manufacturer directly please: Schneider: Tel: 800-228-1254 Email jsioringas@centuryoptics.com

Q: 6. will this lens fit my Panasonic Lumix G85 ?

A: Yes, the Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Micro Four Thirds lens will fit Panasonic Lumix G85.

Q: 7. Hello I have the sony vpl-vw5000es projector in my home theatre on a 20 foot curved screen (I only watch UHD & Blue Ray DVD's). What would the difference be for my installation between the Schneider Cine-Digitar Anamorphic 1.33x MF VS the Schneider Cine-Digitar Anamorphic 1.33x XL?. You sell BOTH models

A: Please contact Schneider directly for the appropriate lens selection: SchneiderTel: 800-228-1254Email: jsioringas@a href= http://centuryoptics.com target= _blank centuryoptics.com/aWebsite: a href= http://www.schneideroptics.com/ target= _blank http://www.schneideroptics.com//a

Q: 8. Will the grip on the fujifilm xh2 be visible in photos?

A: No, the Venus Optics Laowa 4mm f/2.8 Fisheye Lens for FUJIFILM X will produce a huge circular fisheye 210° angle of view.

Q: 9. Will this give me a full circular image on the Canon M models or will some of the circle be cropped ? If it’s full how much black edge is there?

A: The Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Canon EF-M will give you a full circle on all Canon M mirrorless cameras. If you click on the product photo you will see a link for Customer Photos. This way you could see the images this lens will create.

Q: 10. If I zoom in with this lens on my nikon z30 will the vignetting get smaller and be in the corners?

A: The Venus Optics Laowa 4mm f/2.8 Fisheye Lens for Nikon Z is for Nikon Z cameras with an APS-C size sensor, including the Nikon Z30 Mirrorless Camera. The lens does produce a circular image. This is not a zoom lens; you could crop out the black border in post but will end up with a small file.