SKU: 28197463638

Blackmagic Design Spares - Camera URSA Mini Pro - IR Filter

Sale price$1323.76 Regular price$1470.85
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Description

Blackmagic Design Spares - Camera URSA Mini Pro - IR FilterThe Blackmagic Design Spares Camera URSA Mini Pro IR Filter is a precision cut, coated optical glass element that sits directly in front of the sensor. While this part fits the 4. 6K, 4. 6K G2, and 12K models, the specific coating and thickness are critical to maintaining the color science and focus accuracy of the URSA Mini Pro line. Unlike the Pocket Cinema Cameras, the URSA's IR filter is part of a more robust sensor block assembly, designed to be

The Blackmagic Design Spares - Camera URSA Mini Pro - IR Filter is a precision-cut, coated optical glass element that sits directly in front of the sensor. While this part fits the 4.6K, 4.6K G2, and 12K models, the specific coating and thickness are critical to maintaining the color science and focus accuracy of the URSA Mini Pro line.

Unlike the Pocket Cinema Cameras, the URSA's IR filter is part of a more robust sensor block assembly, designed to be serviced in professional environments.


Core Responsibilities

  • Infrared Suppression: Its primary task is to block IR light wavelengths. Digital sensors are "too sensitive" to IR; without this filter, black fabrics look muddy brown/magenta, and skin tones lose their natural warmth.

  • Environmental Shield: This glass is the only thing standing between the outside world and the actual silicon sensor. It protects the sensor from dust, moisture, and physical contact during lens changes.

  • Refractive Index Matching: The thickness of this glass is calculated into the camera's flange focal distance. If it is removed or replaced with a non-OEM part, your lenses will no longer hit their infinity focus marks correctly.

When to Replace the IR Filter

  • "Magenta Shift": If your blacks look purple even with no ND filters used, the IR-cut coating may have oxidized or "failed" over time.

  • Cleaning Scratches: If a sensor swab with a piece of grit on it was dragged across the glass, it will leave a permanent scratch that appears as a soft, blurry line in your footage.

  • Delamination/Clouding: In high-humidity environments, you might see "rainbow" patterns or foggy patches inside the glass. This is the multi-layer coating separating from the glass base.

  • Physical Pitting: Small "chips" in the glass caused by debris hitting the sensor during high-speed filming (e.g., car-to-car shooting without a lens).


Technical Installation Note

DANGER: Level 4 (Expert) Repair. This is the most delicate physical operation you can perform on an URSA.

  1. Dust is the Enemy: You must work in a "clean box" or a room with an active HEPA filter. Any dust trapped behind this glass during installation will be permanently visible and cannot be cleaned without taking the camera apart again.

  2. Gasket Seating: The filter sits on a rubber gasket. If this gasket is twisted or not seated flush, the filter will sit at an angle. This causes "planarity issues," where the left side of your image might be in focus while the right side is soft.

  3. Torque Calibration: The retaining ring or screws must be tightened evenly (in a "star" pattern). Over-tightening can crack the filter or stress the sensor board.

  4. Flange Focal Check: After replacing the glass, it is professional practice to check the "back focus" of the camera. You may need to add or remove shims from your lens mount (EF, PL, or F) to compensate for the new glass.


Identifying the Failure

Symptom Probable Cause
Magenta blacks in sunlight Failed IR-cut coating (Replacement required)
Small black spots at $f/22$ Simple dust (Try a blower first)
Soft, blurry spots at all f-stops Physical scratch or oil (Attempt wet clean, then replace)
Rainbow "oil slick" patterns Coating delamination (Replacement required)

Expert Advice: Many users mistake internal ND filter dust for IR filter dust. Cycle through your ND filters ($2, 4, 6$ stops). If the dust spots move or disappear when you change NDs, the problem is your ND assembly. If the spots stay exactly the same on "Clear" and all ND settings, the dust is on this IR filter.

Are you noticing permanent marks on your footage, or are you trying to fix a color-cast issue?

Shipping Notes
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Exchange/Return Notes
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SKU: 28197463638

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Amazon Customer
Chelsea, US
★★★★★ 5
Love Them!
Color: 1set, Size: 24inch
Fast delivery, heavy duty, deep shelves over other units, and they're beautiful! Would absolutely buy again!
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Reviewed in the United States on February 11, 2026
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Michael Riley Jr.
West Palm Beach, US
★★★★★ 5
Great product if you know what you’re getting.
Size: 4-tier, Style: wall mount&floor mount, Size: 4-tier, Style: wall mount&floor mount
It’s a great product if you know some details before you purchase. Specifically, for how much it cost it’s a great product. After assembly it is sturdy and will hold anything you’ll be displaying on it within reason. Speaking of assembly, it’s straight forward and intuitive if you’ve assembled other things such as a basic end table. What you should know: it does not come with instructions. It’s not hard to figure out but if you’re someone that needs instructions this product isn’t for you. That being said, if you see what you bought it’s not hard to look at the picture and assemble it. It does not come with the shelves. If you can’t buy them premise or make them then this product is not for you. Lastly, and this part is important to me, not all the pieces are straight after assembly. I used a level to mount the product on the wall and make each shelve straight. However, due to the factory produced screw grooves it is not perfectly straight. If you need it perfectly level looking this product is not for you. Refer to my pictures and you’ll see how the left bar looks crooked even though I mounted it level in every way. However, it gives it a more rustic, modern farmhouse feel that we wanted. Otherwise, a great product. I am still very happy for what we paid for. I would recommend the product and buy it again.
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Reviewed in the United States on March 6, 2022
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Dee Davis
Pawtucket, US
★★★★★ 5
Great product!
Size: 4-tier, Style: wall mount&floor mount, Size: 4-tier, Style: wall mount&floor mount
This is my second time purchasing these shelves. They are easy to set up, come with all the screws, brackets, and drywall anchors (if needed). I definitely love the quality, look and versatility. Being that my ceiling is slanted I couldn’t mount them from there but easily mount them to the surface beneath the shelving. My husband loved my idea and how they turned out! Highly recommend!
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Reviewed in the United States on August 8, 2024
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Greg Savignac
Phoenix, US
★★★★★ 4
No Instructions - Easy to build and study
Size: 4-tier, Style: wall mount&floor mount
I ordered 3, and my wife loves the look of them. They seem to support a decent amount of weight. I supervised my 7 year old (55 lbs) as she scaled a single shelf bracket up the wall after it was mounted, without the planks. You do need to have some amount of handiness to be looking at buying as it does not come assembled, and does not have the wood planks with it. A little learning curve I had. Keep the rods only hand snug, not tight, snug, and then as you put it up to the wall adjust as needed to get the heights and widths right to the opposing shelf. There is also only 8 pipe brackets to hold the shelves down (2 per shelf) and I did not realize this at first and assumed I had 16 (4 per shelf). I had to go back and fix.
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Reviewed in the United States on January 5, 2021
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Kryn
Massapequa, US
★★★★★ 5
Game changing storage!
Size: 4-tier, Style: wall mount&floor mount
I love the shelves. I got to use my own wood which was a reclaimed piece that I found and sanded and then stained. I'm so proud to see them on the shelves. It got so much clutter corralled from around the room and put in one place where it all looks good displayed together. The support pieces are very good quality and I found this to be very good value for the price. I'm very happy with this item.
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Reviewed in the United States on February 25, 2024

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