Priolite MBX500 Hot Sync

As I use the Pentaxt 645z Medium Format system I have to look into new flash solutions. They don’t have leave shutter lenses and the technology only allows to sync up to 1/125s. The Profoto sync fine up to this speed, as well as the Elinchromes.

The Pentax speedlights offer HSS and sync flawlessly all the way up to 1/4000s.

So I was very happy to see Priolite offering a solution with sync speed up to 1/4000s.

Here a picture of the MBX500 Hotsync unit next to the already not so small Profoto B1. It is quite bulky for a portable unit that might be used in the field a lot. On the positive side the build quality seems good. You can also see there is a rail to reposition the head on the stand.

Priolite sizePriolite size

To get Hot Sync you can order their Remote, available for Canon, Nikon and Pentax. Next to it the Profoto Air Remote, which is already to big for my taste. So this is a very huge bulky and solid unit. Nice feature, the power settings are bidirectional, so even if you change the power on the strobe, you will see the setting on your remote.

Priolite Remote

Priolite Remote

Sadly the results are not quite as advertised. Already at 1/100s the exposure starts to be uneven.

Here at 1/125s the darkening appears obvious already, at 1/200s the black bar shows up and slight darkneing from the top, at 1/400s the black bar is not correctable in post anymore and a strong darkening from the top.



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Priolite hot sync results

The correct exposed arrea in the bottom area of the frame makes correction quite difficult in post.

Conclusion:

Not usable for studio work at all at any setting. For outdoor shootings it might be ok unless you need to correct a few hundred pictures.



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