The Schneider 4x4" 1mm Blue 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" 1mm Blue 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 blue hue, which further emulates the character of highlights generated when using traditional anamorphic optics that are not designed to suppress colored streaking. True-Streak Filters that are formulated to create red, orange, yellow, green, pink, or violet banding instead of blue 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 1mm apart from each other. True-Streak Filters with spaces of 4mm, 3mm, or 2mm 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    Blue 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 blue-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. These lenses look like a 1:1 rip off of the dulens apo primes

A: While similar on the outside to the Dulens APO Mini Primes, the Schneider ISCO4all T2.4 3-Lens Kit with 1.5x Anamorphic Adapter (EF Mount) Kit is crafted by Schneider in Germany.

Q: 2. Height Adjustment is possible and if yes how much in cm?

A: Yes, you can adjust the height of the LanParte MB-01 matte box, the adjustment is about 3cm.

Q: 3. If I buy this along with the Lamparte DSLR Starter Rig B&H # LABSK01, do I need to also buy 2 short rods for the front to mount the matte box?

A: You should be able to get away without it., Unless you are using a really long lens. You will have to adjust the camera to connect to the the matte box. I don't have the extension and it works fine for me with a GH4.

Q: 4. What is the best enlarger lens to print 35mm negatives on a Beseler 4x5 enlarger?

A: A 50mm Schneider or Rodenstock lens would be most useful.

Q: 5. The picture shows two sets, but the ad copy states set of 4 . Which is correct. Are there 4 pieces (2 sets), or are there indeed twice what is pictured - 4 sets?

A: There are four pieces, two sets.

Q: 6. how is the focus position vary along with wavelength?

A: We would love to assist you with this question, however we do need a bit more information. If you could email this question to provideo@bhphoto.com with some additional information like what camera you'll be using and the application it is for we'll do our best to assist you.

Q: 7. Can these OP/TECH Mini QD Loops support a full size DSLR?

A: I am using on a full frame canon. I switch camera straps and it works well

Q: 8. Can we buy extra filter trays for multiple filters?

A: Currently, there are no add-on filter stages available for this matte box. Thus it can only take two 4x4 filters at one time. The trays themselves may be available from the manufacturer though they are not listed.

Q: 9. 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: 10. 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