Ok, I've tested the Sunpak flash during the weekend. What I mostly liked over the Godox is the size and functionality. This thing is pretty small, pretty close to a card deck. The other function that really shines is the easily accesible manual mode. I love being able to hand hold it and bounce it whenever I find suitable and adjust the power acordingly on the fly. On the bad side, it is completely useless outside. Even on a cloudy day. You need both your subject and the flash to be in the shade.
If you want to bounce it onto a low ceiling (my house is around 2,60m) I've set the MX-1 flash to -2 and pointed the Sunpak to the ceiling at 1/8 in the manual setting. Subject around 2m away, f/2.8 ISO 100. Obviously, different situations would require a different setting.
I'm attaching 2 pictures, first one with the onboard flash only, set to -0.3. The second one was shot with a setup pretty similar to the mentioned before, but I bounced the flash into a wall on my back since subjet was too close for a nice ceiling bounce. I like the results so far, light is a lot more even and flattering, and the horrible harsh shadows from the onboard flash are almost gone. Maybe I should have increased the power 1 stop on this one... but model was playing and it was hard enough to get these 2 some shots :P
Best thing about it is that you can get creative and use it a hairlight - backlight combined, or used as a side light. I'm even thinking on getting a second one in order to create more interesting setups
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