HVL-F20AM Flash Test

HVL-F20AM – Flash Test

The HVL-F20AM flash is a very simple straight forward flash to use.  It has a firing priority for all the flashes i.e. it fires all the HVL-F58AM irregardless of it being in the different groups – both RMT( Group 2 in a three ratio setup) and RMT2 (Group 3 in a three ratio setup).  However, all of the flashes needs to be in Channel 1 to allow triggering by HVL-F20AM.

A- Indoor In Room (Near)– Trigger to Flash Distance 2.5m.

Below is a quick test of the HVL-F20AM firing a couple of HVL-F58AM and a HVL-F42AM.  All flash fired correctly Indoor without any problem.

B- Indoor In Room (Far)– Trigger to Flash Distance 10m.

In Progress.

Next: HVL-F20AM Flash Test II – Night Fill-in

  1. December 7, 2009 at 12:07 pm

    Good to know. thanks

  2. pakngahnye
    April 15, 2010 at 2:20 am

    bro, can u tell the detail how to do the trigger? i’ve tried but im failed to trigger the f58 by using f20 on a700.

    • alphastrobist
      April 15, 2010 at 2:52 am

      Hi Pak Ngah,

      The A700 do have a pop-up flash. Therefore, you do not require the F20AM to trigger the F58AM wirelessly. The F20AM can only be used as a wireless trigger for the A900 & A850 – cameras without a in-built pop up flash.

  3. adi Din
    April 15, 2010 at 3:26 am

    oo.. i see.. tq for the info.. 😀

  4. amit desai
    January 16, 2011 at 3:37 pm

    i have jus bought the F20am and cant seem to trigger the f58am wirelessly? could u give me a step by step on this please?im using the sony a900. thanks in advance

  5. Faith Yeung
    February 3, 2012 at 7:29 am


    I am using 58 flash for my A500. I am wondering if 20 flash rebound from ceiling is good enough for casual indoor family shot (as I don’t own a large house). And How long shall I wait for the 20 flash between 2 shots?
    Please share.

    • alphastrobist
      February 14, 2012 at 12:43 am

      Hi Faith,

      If you are able to balance high ISO, Widest Aperture and the HVL-F20AM indoors, you may be able to get some decent shots. I sometimes use the A900 with just the HVL-F20AM indoors with satisfactory results for closer range and a “normally” lit room. The ability to bounce up the flash helps in diffusing the light. If possible, you would want to have a little bounce card to bounce some of the light forward. Look at the little DIY example I made on the bounce card for the HVL-F20AM.

      Thank you and have a great day!!!

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