Hi,
long story short:
my new 201fg flash unit emits ultrasounds that I am unlucky enough to pick up while charging. It is annoying, almost painful. Is there anyone else with my same problem? Have you been able to solve buying an other model instead?
I recently bought my first external flash to be paired with my pentax cameras. I never used one before and honestly I never played around that much with the ones on board. It is a 201fg and I have one big problem with it which is enough to be a dealbreaker. Ultrasounds. Now most people are not affected by this at all, in particular after a certain age since the perceivable spectrum shifts towards lower frequencies; however it is a HUGE problem for me since I have always been a little bit more sensitive than average. Basically most of the power suppliers and even some types of lights emit this super-annoying noise that almost nobody can hear but I can, just because the designer for the circuit never bothered to shift the operating frequency a little bit further. And usually people just think I am mad or the next thing I would say is that I also see ghosts and the new trilogy of star wars is not that bad.
In this case I guess the problem is the relatively low frequency at which the voltage multiplier is operating, and all the capacitors inside which enjoy to oscillate as well
.
So, I you experienced the same problem, do you have any other compatible model with pentax to suggest? I have to send this one back, but still I would like to use a proper flash in the future without feeling pain. By the way none of the onboard flashed that I had on my cameras so far shared this problem.
Thank you for your time!