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!
Free Domestic Shipping, quality glass filters
Included autofocus calibration.
Mirrorless conversions are calibrated to focus accurately with all lenses.
List of models we convert:
DSLRs: A100, A200, A230, A290, A300, A330, A350, A380, A390, A450, A500, A550, A560, A580, A700
Mirrorless: NEX-3, NEX-5, NEX-C3, NEX-3N, NEX-5N*, NEX-5T*, NEX-5R*, NEX-F3*, NEX-6*, NEX-7*, A3000*, A5000*, A5100*, A6000*, A6300*, A6500*, A6400*
SLT**: A33, A37, A55, A57, A58, A65, A68, A77, A77 II
RX100, RX100 II, RX100 III, Rx100 IV, RX100 V
RX10, RX10 II, RX10 III, RX10 IV
Full Frame: RX1, RX1R, Rx1R II, A99, A99 II, A7*, A7R*, A7S*, A7 II†, A7R II†, A7S II†, A7R III†, A9†, A7 III†, A7R IV, A9 II
NOTE: Dust reduction systems are NOT disabled after conversion and still function in most models except the ones with a *.
* Dust reduction is disabled in these models.
**Read about the Translucent mirror technology and how it works in infrared here.
† These cameras contains an internal diagnostic IR Led. This can cause light leaks when using very long exposures and high ISOs in the H-alpha and IR enabled conversions, in the range of 30 second exposures at 6,400 ISO. The A7RII additionally can have fine horizontal artifacts across the frame in highlighted areas in the IR enabled conversions due to the different sensitivity of some rows of pixels.
Some Sony DSLRs with live view use a second sensor, which still works with visible light after a conversion and does not offer an advantage over the optical view finder for infrared. This is not an issue with Sony Mirrorless or Translucent mirror cameras.
This conversion service replaces the cameras internal hot mirror filter with our high quality custom manufactured glass replacement infrared or clear filter. The autofocus systems are calibrated to the 18-55mm kit 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