V6II Compatibility


I installed the latest software on my V6, V6II(Pentax.003) and RF60

What works is:
- V6 on Camera - remote ignition of RF60
- V6II on Camera - remote ignition of a SB24 on V6 receiver
- V6 in the hand - MANUAL control of a Pentax 540 (I) on a V6II (power setting & ignition)

What works NOT:
- V6II sender on a e.g. K3 Kamera - MANUAL control of a Pentax 540 (I) on a V6II (power setting & ignition)

This was discovered on FW PEN.A.002 and is not corrected by FW.003

Collaboration with my V6Lasers is not tested yet
Greetings from Germany



  • Hi Klaus,

    Thanks for your report.

    When you mount V6 II on your Pentax K-3, do you see ISO and lens zoom numbers pop up on V6 II LCD when you adjust them?

    See my signature link to test.

    For the flash side, Pentax AF540FGZ is compatible. Is the flash set to TTL mode and does V6 II recognize it as a "P" flash? Is AUTO flash profile applied automatically?

    Thank you.
    Antonio Lao
    Brand Manager

    To help us better help you, always state the exact firmware version installed on your Cactus device(s), such as: "1.1.013", "NIK.A.001", "v.103", or "A06".

    TTL or HSS not working on Cactus V6 II and V6 IIs? Be sure to check hot shoe connectivity by doing the <CAMERA INFO> check.

    Feel free to suggest an improvement or share product ideas. Contact us directly at info@cactus-image.com.  At Cactus, we listen. 
Sign In or Register to comment.