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Inspiring
June 18, 2026

P: Canon tethering stopped working after updating to Lightroom Classic v15.4

  • June 18, 2026
  • 63 replies
  • 1485 views

Installed this and my tethered camera setup no longer works.  It appears to work as before, but no images are transferred.  Canon R1, Windows 11.  Anyone else having tethering issues?

    Pinned Reply By Rikk Flohr_Photography

    See ​@Matulaitis  post:  

     for a workaround to get your tether functioning again. 

    63 replies

    Inspiring
    June 28, 2026

    Yes.  I get a “Full” message after shooting 13 frames on my Canon EOS 5DS with Lightroom 15.4.1 tethered. I can fix it temporarily by shooting one frame from the tethered control bar on the screen, but the problem recurs after shooting 13 more frames on the camera. Happens EVERY time after exactly 13 frames. Neither the camera card nor my computer hard drive are anywhere near full.

    This version was billed as “Improved tethering for Canon Cameras” ???

    Participating Frequently
    June 25, 2026

    I’m having the same problem with the PC FULL error with both my Canon bodies 1DX Mark 1 & Mark 2. Tethering with the Canon utility works fine. I just rolled Lightroom classic to the previous version and everything works again. I’m going to stick with this version for a while.

    Participant
    June 25, 2026

    on canon r6mii after the update i now receive a PC Full error on the camera when shooting tethered. Have never had this happen before

    Yessica Duque
    Participant
    June 25, 2026

    I tried with the SKD protocole and doesn't work. (canon R6M3 user)

    That Rob Wicks
    Participating Frequently
    June 29, 2026

    Same 
    SKD option solves the issue with my older EOS R camera 
    But with brand new R6Miii it makes no difference 
    When tethered, no photos are reaching Lightroom whatever I do

    Yessica Duque
    Participant
    June 25, 2026

    I have issues with my new canon r6m3 - after the latest update it doesn't work. I’m already exhausted….

    paolo27841868xngk
    Participant
    June 24, 2026

    UPDATE: after ticking the box “Use Canon SDK for Tethering” in the general preferences, tethering with Canon Powershot V1 is working again. 

    Xarlo99
    Participant
    June 24, 2026

    Just tried Canon eos R6 Mark III and it is not working. I will try with Canon SDK…..

    That Rob Wicks
    Participating Frequently
    June 23, 2026

    Tethering R6 Mark iii (listed as supported from this update) not working in Lightroom Classic 15.4.1 for Mac

    Lightroom sees the camera correctly 
    It fires the shutter 
    But no photo arrives in Lightroom 

    The shutter then won’t fire remotely any more 
    It will still operate using the shutter button on the camera
    But still no images reach lightroom 

    NB: I Have tried with and without “Canon SDK” option in the preferences General menu
    Still no success 

    kind_Hero1587
    Participating Frequently
    June 22, 2026

    Seems to work without problem for me. Lr 15.4.1 & Mac Studio M3 Ultra

    That Rob Wicks
    Participating Frequently
    June 25, 2026

    Thanks
    I’m wondering if the firmware upgrade might be a factor?
    Have you installed firmware update 1.0.2 ? 
    https://www.canon-europe.com/support/consumer/products/cameras/eos-r/eos-r6-mark-iii.html?type=firmware 

    Participant
    June 21, 2026

    라이트룸 클래식최신 버전 사용, 애플 맥북 m1max, 64gb, tahoe 사용중이며,

    카메라는 canon r3 사용중입니다.

     

    테더링 촬영시 라이브 옵션을 사용할경우 카메라측에서 5~10번 정도 af와 셔터촬영을 했을경우,

    af를 잡지 못하고 셔터촬영이 되지 않습니다

    맥북상의 라이브화면에서만 af와 촬영이 가능합니다