Canon DSLR and Mirrorless Full Spectrum HSK Conversion Service



Out of stock



The HSK Full-Spectrum Conversion

The HSK is our full-spectrum conversion service re-engineered to eliminate hot-spots with problem lenses when shooting in the infrared spectrum. (Click here to read the full story behind how it works!) We install a dual-AR coated, full-spectrum ND glass filter to give your sensor the spectrum correcting properties needed to shoot IR hotspot free with more of your lenses. Please note: This conversion will completely eliminate most hotspots, but will reduce overall exposure by approximately 4 stops of light. This is ideal for fine art, landscapes, portraits, studio and other demanding photographic work where image quality is paramount. Though it is redesigned for hotspot elimination, the HSK full-spectrum service will still provide all of the capabilities of a normal full-spectrum conversion, making your camera compatible with all IR filters at handheld shutter speeds. Read the full story behind the HSK filter, our research, and how it works here!

Screenshot 3

Conversion Details

Free Domestic Shipping, Quality glass filters

Included autofocus calibration.
List of models we convert:

APS-C size: Canon D30, D60, 10D, 20D, 30D, 40D, 50D, 60D, 70D, 77D, 80D, Digital Rebel(300D), XT (350D), XTi (400D), XSi (450D), XS (1000D), T1i (500D), T2i (550D), T3 (1100D), T3i (600D), T4i (650D), T5i (700D), T5 (1200D), T6i (750D), T6i (760D),T7i (800D), T7 (2000D), SL1 (100D), SL2 (200D), 4000D, 1D, 1D Mark II, 1D Mark II N, 1D Mark III, 1D Mark IV, 7D, 7DII, G1X, G1X II, G1X III, G3X, G5X, G5X II, G7X, G7X II, G7X III, G9X, G9X II, EOS-M, EOS-M2, EOS M3**(Warning, sensor artifacts once converted), EOS M5, EOS M6, EOS M10, EOS M100, EOS M200, EOS M50

Full Frame: 5D, 5D Mark II, 5D Mark III, 5D Mark IV*, 5DS, 5DS R, EOS R, EOS RP, 6D, 6D Mark II*, 1Ds, 1Ds Mark II, 1Dx, 1Dx Mark II

NOTE: Dust systems are disabled after conversion

**The Canon M3 exhibits sensor artifacts due to the phase detect pixel array. This can be visible as multiple horizontal blue lines across the image.

*These cameras have an internal shutter monitor IR LED which will cause light leaks with long exposures or high ISOs.

This conversion service replaces the camera’s internal hot mirror filter with our high quality custom manufactured glass replacement infrared or clear filter. The autofocus systems are calibrated to the 50mm 1.8mm lens. This calibration results in general focus accuracy for most lenses from 18-300mm. You can also send your own lens to be calibrated to instead at no additional charge. Note, wide angle lenses need a different focus calibration.
Our checkout system is through Paypal, but you do not need an account to pay. If you have a time sensitive order, please select “Rush Delivery” as your shipping option to receive first in line service. Leave us a note with your deadline so we can work to meet it.

After you complete checkout, you will be redirected to our shipping instructions page.

For help choosing which filter to order, check out our filter selection guide.

By purchasing you agree to our Terms of Purchase

Additional information

Weight 0.1 lbs

Why Choose Us?

  • Professional dust free infrared conversion in an ISO Class 5 clean bench using high quality glass and fused quartz
  • Anti-reflective coated filters to reduce hotspots and glare
  • The ONLY company that uses optically engineered IR filters for the best infrared photography camera you can own
  • Free and quick 1-2 week average turnaround
  • Over 900 supported models for infrared conversion
  • 550nm, 590nm, 665nm, 720nm, 850nm, NDVI/Blue IR, Full Spectrum, and Two Spectrum infrared filters all one low price!
  • Free custom lens calibration
  • Free domestic return shipping with a mail-in box option
  • 1 year warranty on converted cameras and infrared conversions
  • Authorized repair shop partner for long term service of your infrared converted camera


All of our conversions and converted or modified cameras come with a 1 year warranty for post-conversion malfunctions and electronic issues related to the conversion service.

This warranty does not include wear and tear repairs such as, but not limited to; shutter failure. Warranty does not cover user-caused damage, or other issues unrelated to our conversion services or camera modifications.

For more comprehensive coverage we highly recommend our Extend warranty, which also covers accidental damage.

Processing Time

Our standard turnaround time for camera conversions is 2 weeks on average for most models. This is only an estimate and not a guarantee. Our standard turnaround time may occasionally exceed 2 weeks during our busy season (April-August) or take less than 2 weeks in our off-season (September-March).

We also offer 5-day and 1-2 day rush processing options on our camera conversions for an additional fee. Our rush services allow us to coordinate the logistics of your conversion ahead of time to meet your deadlines to the best of our ability. Our rush processing time does not include shipping times.

We do our best to accommodate each and every one of our customers year-round.

If ordering one of our pre-converted cameras, keep in mind that they are made to order and are not eligible for rush processing. Please allow at least 2 weeks before your camera ships out to you. Plan for trips and assignments accordingly!

Any time frames that we provide, including shipping time, turnaround time, and rush processing times, are only estimates and are subject to availability. We make no guarantees on service time or shipping times.

AR Coating

What is the AR coating and what does it do? The AR coating option adds an IR centered anti-reflective coating onto the IR filter we install when we perform an infrared conversion. It reduces hotspot artifacts that some lenses are prone to, and can reduce other stray reflections. On our full spectrum conversions we apply a broadband AR coating that covers the UV, visible, and IR ranges. The coating does not reduce optical performance in any way and is highly recommended.


Uncoated glass has a reflection of around 4-5% at all wavelengths, and we found that this reflection off the sensor filter was bouncing off the glass and reflecting back from the lens housing and aperture blades to cause IR hotspots.  We developed this anti-reflective coating that is centered around the IR wavelengths that cause hotspots, and reduced the 5% reflection down to <0.5%

Reflectance Curve

Conversion AR Coating

When applied to our internal conversion filters, we find that hotspots are significantly reduced during infrared photography. Below is a sample from a Nikon 50mm 1.8 which has a strong hotspot at small apertures. Independent tests also available from Mark Hilliard here and Edd Noble here.

Hotspot AR

Prepaid Mail-in Box

Not sure how to mail your expensive camera? We are now offering a secure and insured mailer box to streamline the shipping process for our customers shipping from the US!

We’re happy to announce that we’re taking the hassle and confusion out of shipping your camera back and forth to us for our conversion service. With our new prepaid mailer, we’ve turned shipping us your camera both ways into one streamlined and secure process. Here’s how it works!

When you place an order for a conversion and select the prepaid mailer option, we’ll send you a sealed box with everything you need already inside. The mailer should arrive to your door in 2-4 days.

Read more here



There are no reviews yet.

Be the first to review “Canon DSLR and Mirrorless Full Spectrum HSK Conversion Service”