Vello LW-500-U User Manual page 31

Appendix D: Pentax Third-Party Tethering
You can use select Pentax cameras and wirelessly tether with Adobe's
Lightroom. Make sure your Lightroom software version is 10.14.0 or higher.
1. Check your camera's firmware version is above 1.30. If not visit,
http://www.ricoh-imaging.co.jp/english/support/download_digital.html for the latest
firmware.
2. Download and install the Pentax Tethered Capture Plug-in for Adobe's Lightroom
from http://www.ricoh-imaging.co.jp/english/support/download_digital.html.
3. In your Pentax camera menu, under
change the USB Connection to PTP.
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