SKU: 94798682369

Theia Technologies CS-Mount 1.8 to 3mm Varifocal Manual Iris Lens

Sale price$22603.50 Regular price$25115.00
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Description

Theia Technologies CS-Mount 1.8 to 3mm Varifocal Manual Iris LensCan Be Used with Up To 5MP Cameras Wide to Ultra Wide Field of View EasyZoom Optimizes Field of View IR Corrected for Day Night Cameras Distortion Free F 1. 8 to Closed Aperture The Theia Technologies CS Mount 1. 8 to 3mm Varifocal Manual Iris Lens provides ultra wide field of view without distortion. This varifocal lens allows you to optimize the field of view from wide angle to ultra wide. The lens incorporates patented Linear Optical Technology,

  • Can Be Used with Up To 5MP Cameras
  • Wide to Ultra-Wide Field of View
  • EasyZoom Optimizes Field of View
  • IR-Corrected for Day/Night Cameras
  • Distortion Free
  • F/1.8 to Closed Aperture

The Theia Technologies CS-Mount 1.8 to 3mm Varifocal Manual Iris Lens provides ultra wide field of view without distortion. This varifocal lens allows you to optimize the field of view from wide angle to ultra wide. The lens incorporates patented Linear Optical Technology, which allows an ultra wide field of view without barrel distortion. This rectilinear design allows increased resolution at the edges of the image thus increasing the probability of detection.

The lens is designed to allow the installer to take full advantage of the high resolution of high-definition and multi megapixel cameras. The lens can be used on cameras at up to 5MP resolution, giving a crisp image from edge to edge.

In addition, the lens includes EasyZoom, which allows you to focus the lens once and then adjust zoom or magnification to give the optimized field of view. Only minor focus optimization is required after zooming.

The lens is IR corrected for use with true Day/Night cameras. This IR correction focuses IR light from artificial illumination at the same plane as the visible light, allowing the image to remain in focus when the Day/Night camera switches to night mode. Unlike lenses without IR correction, the night image will not be out of focus when using IR illumination.

Linear Optical Technology provides ultra wide field of view adjustable from 115 to 77° for greater coverage with fewer cameras
EasyZoom allows the user to optimize the field of view with minimal need for refocusing
IR corrected for true Day/Night cameras
Supports multi MP resolution cameras for demanding applications
Lens Type Manual iris
Focal Length 1.8 to 3mm
Linear Optical Technology Yes
Distortion <1%
Resolution Up to 5 MP resolution
F Number F/1.8 to close
IR Corrected Day/Night
Mount CS
Field of View At 1/3" Sensor Size: 105 to 77° (H), 90 to 62° (V), 117 to 90° (D)
At 1/2.7" HD Sensor Size: 111 to 84° (H), 95 to 68° (V), 123 to 96° (D)
At 1/2.5 Sensor Size: 115 to 88° (H), 99 to 71° (V), 126 to 100° (D)
Packaging Info
Package Weight 0.2 lb
Box Dimensions (LxWxH) 4.1 x 2.2 x 2.2"
In the Box
Theia Technologies CS-Mount 1.8 to 3mm Varifocal Manual Iris Lens
  • Limited 2-Year Warranty
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 94798682369

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4.7 ★★★★★
Based on 26 reviews
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Verified Purchase
Laura W.
Cuba, US
★★★★★ 5
Female with no knowledge about cars seal of approval!
Size: For Mazda 3 14-18 2.0L/2.5L|Mazda 6 14-21 2.5L
Perfect for my 2016 Mazda3. I am a young female with zero tools and zero knowledge about cars. My dealer was asking over $60 to change these out, and after a 5-minute course at YouTube University, I was able to do everything myself in under 15 minutes. It’s my crowning achievement of 2026. I recommend gloves when you go to change out the engine and make sure it’s wiped out and cleaned before you put the new one in! But other than that, it’s honestly just popping a few things out, changing the filters, and then popping them back into place. They look almost identical to the filters that were already in there. There was no wrestling with making them fit because they just slid easily into place. Great buy and unbeatable price if you have a few minutes to spare to do it yourself!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
C
Verified Purchase
Cyberbard
Houston, US
★★★★★ 5
Easy Install - Looks like the Original
Size: For Ascent 19-26|Crosstrek 2.0L 18-22/2.5L 21-22
Both of these filters, cabin and engine are really easy to install at home with NO tools needed and at a fraction of the price that dealers charge. These filters are for a Subaru Impreza and look almost identical to the originals and fit perfectly. Cabin filter installation is by dropping the glove box - detach damper rod and unclip sides. Unclip filter cover behind glove box and remove/replace filter checking airflow direction is the same as the old filter. Reinsert glove box and push up to locate side clips. Re-affix damper rod and you're done. Engine filter is equally easy. Unclip air filter housing (not necessary to remove entirely) slide out old filter and insert new on in same orientation. Re-attach clips and done. Took me 10 minutes to change both filters. Longest part was emptying all the cr*p out of my glove box. Good quality filter, easy to install and saves time and money. I bought a second set for a Mazda CX-5 non turbo and quality was the same. Installation exactly the same as above for the Subaru
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026
D
Verified Purchase
dannyww
Fort Morgan, US
★★★★★ 5
Worked fine
Size: For Palisade 2020-2026
Great fit and value. Installation was easy.
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Reviewed in the United States on May 20, 2026
P
Verified Purchase
PH
Bozeman, US
★★★★★ 5
Good Filter
Size: For Durango 11-26|Grand Cherokee 11-22 etc.
Fit as it should and works as it should. Good value.
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Reviewed in the United States on April 28, 2026
B
Verified Purchase
Brett D. Crowell
Chelsea, US
★★★★★ 5
Never Pay Again. Easy and affordable for your health and the vehicle.
Size: For Sonata Gas 2015-2019
Way easier to replace than I thought. I’ve done a cabin filter before, but never the engine air filter. After this, I’ll never pay someone to do it again. I actually went into a store first, and the cabin filter alone was the same price as this set that includes both the cabin and engine filters. Since I needed both, this was a no-brainer. Install was quick and straightforward, even for someone who’s not a "car guy". I can’t speak scientifically on how well they filter, but they’re definitely better than the mouse-destroyed ones that were in this car before. Huge improvement. Highly recommend if you’re looking to save money and do it yourself. They fit well and seemed to be exactly what was needed and expected.
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Reviewed in the United States on April 15, 2026

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