SKU: 24460379737

Blackmagic Design PL Mount Shim Kit

Sale price$585.81 Regular price$650.90
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Description

Blackmagic Design PL Mount Shim KitBlackmagic Design PL Mount Shim Kit The Blackmagic Design PL Mount Shim Kit is a critical technical accessory for cinematographers using the URSA, URSA Mini, URSA Mini Pro, or URSA Broadcast cameras. This kit is used to precisely calibrate the flange focal distance (the distance between the lens mount and the camera sensor), a process commonly referred to as "shimming" the mount. Purpose and Functionality In professional cinematography, focus marks on

Blackmagic Design PL Mount Shim Kit

The Blackmagic Design PL Mount Shim Kit is a critical technical accessory for cinematographers using the URSA, URSA Mini, URSA Mini Pro, or URSA Broadcast cameras. This kit is used to precisely calibrate the flange focal distance (the distance between the lens mount and the camera sensor), a process commonly referred to as "shimming" the mount.

Purpose and Functionality

In professional cinematography, focus marks on a lens must be accurate. If the distance between the lens and the sensor is off by even a fraction of a millimeter, the lens may not hit "infinity focus" correctly, or its focus scales may become unreliable.

  • Back Focus Calibration: Shims are used to adjust the camera's back focus to compensate for manufacturing tolerances in either the camera body or the specific PL-mount lenses being used.

  • Ensuring Lens Accuracy: By adding or removing shims, you ensure that a lens focused at 10 feet on the barrel is actually focused at exactly 10 feet on the sensor.

Kit Contents

The kit typically includes a selection of ultra-thin, color-coded rings that are placed behind the lens mount.

  • Set of 8 Shims: The kit contains multiple shims of varying thicknesses, allowing you to stack them to achieve a specific total thickness.

  • Baffle Tool: Some versions of the kit include a specialized tool to help remove the internal light baffle or the lens mount assembly without damaging the sensor's glass.

  • Color-Coding: Each shim is color-coded (often in shades like tan, red, or clear) to represent a specific thickness in millimeters, making it easier to track adjustments.

Compatibility

This kit is specifically designed for the interchangeable lens mount system found on Blackmagic’s high-end cinema cameras:

  • URSA Mini Pro (4.6K, G1, G2, 12K): Essential when swapping from the default EF mount to the optional PL mount.

  • URSA Broadcast G2: Critical for ensuring cinema PL glass performs correctly on the broadcast sensor.

  • Blackmagic Cinema Camera 6K (L-Mount): While the camera uses L-Mount, users who utilize the Blackmagic PL Mount adapter may require shims to ensure that adapted PL lenses maintain proper infinity focus.

How to Use the Kit

Shimming is a delicate process that should be performed in a clean, dust-free environment.

  1. Mount Removal: Use a 2.0mm hex key to remove the screws holding the existing lens mount onto the camera body.

  2. Placement: Place the desired shim (or combination of shims) onto the camera body, ensuring they sit flat against the mounting surface.

  3. Reassembly: Re-attach the PL mount and tighten the screws in a "star pattern" to ensure even pressure.

  4. Testing: Mount a wide-angle lens, set it to infinity, and check the image on a high-resolution monitor or using the camera’s focus peaking tool. If infinity focus is not achieved, the shim thickness must be adjusted.

Operational Insight

For rental houses and professional DPs, shimming is a standard part of "camera prep." Because temperature changes and physical wear can slightly shift a camera's flange distance over time, having a shim kit on hand is vital for maintaining professional standards. It is often recommended to use a Siemens Star chart or a Projector during this process to verify that the focus is sharp across the entire frame.

Shipping Notes
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Exchange/Return Notes
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SKU: 24460379737

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Sean
Lexington, US
★★★★★ 5
Sound quality
Style: AVR-X1800H
Great sound for home entertainment center and surround sound for watching hd movies
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
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Verified Purchase
KB
Louisville, US
★★★★★ 5
8.5 sound out of the box! (Want bespoke configs? Sorry.) Great Value, Easy Setup
Style: AVR-X1800H
Excellent unit. Off the shelf sound is very nice, but every room is different, so a bit of tweaking is usually required. Accessing the EQ settings takes a bit of sleuthing and the use of its app... which is subpar. The app interface can only be explained as designed by people who must not actually use it. Still, a wonderful machine at a fair price. I run in ECO mode and it powers my 35x47 room with plenty of power to spare and NEVER gets hot. I am running Infinity Reference speakers and a Klipsch sub in a 7.1 config. I highly recommend the use of the included Audyssey calibration microphone! My prior experience with Yamaha YPAO left me wondering what was the point. This time with the Denon, it set up the speakers, (i'm embarrassed to say) better than I did on my own. (To be fair, I'm sure Yamaha has improved its YPAO in the decade since my prior purchase) Bottom line. If you want maximum flexibility on EQ. Shop a different solution. However, If you want quality sound with 4K and up to and including ATMOS processing, with minimal tweaking, or just want to unbox and play, this is a wonderful unit at a very fair price.
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Reviewed in the United States on April 20, 2025
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Verified Purchase
Al G
Dallas, US
★★★★★ 4
Does well for my needs
Style: AVR-X1800H
I got this to replace a Sony head unit that was starting to fail after 10 or so years of use. This one doesn’t have the same power output, but I use Bose speakers. Bose is fairly low wattage for the most part so no problem there. Setup was fine. My only complaint is that center channel only dialog is too quiet. I need to adjust that. Everything else is great. I don’t care about Internet connectivity, but it has that if you want it. I’m very happy so far with this unit.
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Reviewed in the United States on October 1, 2025
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devo129
San Leandro, US
★★★★★ 5
Love denon
Style: AVR-X1800H
Value for money,looks and connection quality
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Reviewed in the United States on March 16, 2026
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Whomanic
Natrona Heights, US
★★★★★ 5
Nice AVR
Style: AVR-X1800H
Refurbished and looking like brand new. One small scratch on the side. It went in a cabinet and it's hidden. All paperwork seemed to be there. If I didn't know it looks like factory sealed . I've got an older Denon. Just wanted to move up to 7.2. Audyssey recognize a second sub. But neither did my older on. No problem with that though. Just FYI. After the original setup and minor tweaking it sounds fantastic for me. I haven't had it but a few days and I hope I get many years of enjoyment from this
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Reviewed in the United States on May 29, 2025

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