20 Most Recent Sunpak PZ42X Power Zoom Flashgun for Sony Alpha Minolta ADI PTTL Flash Questions & Answers

You can download the manual from the manufacturer's web site at

Sunpak PZ42X... • Answered on Aug 07, 2011

This is the web site http://www.sunpak.jp/english/ it has support, PDF manual downloads and contact information. I would suggest contacting them and finding where the repair/warranty depot is closest to your location. I would think that if you still have the bill of sale that's is all you need.
Best of luck with it. In closing in all the Sunpak flash units I've used for both film and digital only one gave problems and only after it was dropped from the umbrella mount.

Sunpak PZ42X... • Answered on Mar 04, 2011


Sunpak PZ42X... • Answered on Feb 22, 2011

Hey there, I had one a couple of months back, but unfortunately I got rid of it since I no longer use it. But, you can certainly buy one online. Check out Amazon or Newegg. Good luck!

Sunpak Cameras • Answered on Sep 24, 2020

When it is not triggering either Tube is dead or Trigger circuit has a problem. You can get junk flash from Ebay.

Sunpak Cameras • Answered on Dec 06, 2017

This should be covered in the manual - it is probably an error message of some description.

Sunpak Cameras • Answered on Oct 30, 2017

Have you tried other flashguns ? Does this unit work on test ?

Sunpak Cameras • Answered on Nov 15, 2016

I think you would need to send it for repair but be aware of the cost of repair as apposed to a new unit.

Sunpak Cameras • Answered on Mar 11, 2016

Yes you can. All you need is a small inexpensive slave unit.

Sunpak Cameras • Answered on Jan 29, 2016

I found this for a Sunpak flash which is similar to the G4500dx: Reading from the "auto555/G4500DX" Manual, you need to: 1. Slide the Film Selector to desired ISO - (that is the same as your camera ISO used - so, make sure you turn Off the Auto ISO feature if your camera has one). 2. Slide the Mode Selector to "A" (Auto position). This will be Auto Thyristor mode on the flash. 3. Slide the Auto F/stop Selecct Know to desired lens openning - ( so use your camera in Aperture priority mode, more in Manual to prevent changes in the camera aperture value during shooting) Shoot, and be happy with well exposed pictures by the Auto Thyristor features of the Sunpak 555 flash. The Sunpak 555 works great with Nikon D50, D70 cameras, as you can synchrinize flash practically at all shutter speeds. Excellent for sunny days to get narrow DOF, yet get any ambient light level contribution as desired. For other cameras, make sure (watch out for) that Aperture Priority mode does not use shutter faster than the camera max X-sync speed - so Manual camera mode could be a better choice for a novice photographer. In the manual there is also a list of accessories for various brand cameras, How to use Power Ratio in Manual mode, some advice on using wide lenses, how to care of your 555, and Specification section. Minimal flash duration is 1/450 at full power, so you can safely use Auto Aperture up to 1/500 sec. Flash duration decreases with lower power setting, or lower auto mode need for poser, and the shortest flash duration is 1/17000th sec.

Sunpak Cameras • Answered on Jan 29, 2016

These are not that expensive to buy, the problem is that the parts and service are more than a new one. In any case they use high voltage and you have to use special tools to measure and service the flash circuit. IT might be the flash tube is bad, the trigger circuit is bad, the capacitor is bad etc.

Sunpak Cameras • Answered on Apr 18, 2015

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