Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
06-21-2016, 11:42 PM   #1
Forum Member

Join Date: Jun 2014
Posts: 73
645Z not firing hotshoe or body PC connector - HELP

Hi All

I'm a bit worried. Can't get any activity out of either the hotshoe or PC connector on body side to fire anything (even single pin transmitters or flashes). I can get the PC connector on an LS lens to go, but this isn't camera derived.

1) Has anyone struck this before?

2) Are there any settings that could turn these off that I'm not aware of? Seems unlikely but hoping!

I am really hoping there is a simple explanation to this that I'm unaware of? Thanks in advance.


---------- Post added 06-22-16 at 06:59 AM ----------

Ok - false alarm.

So one learning and one reminder for me

1) fastest normal flash sync in only 1/125 - I knew this, but In my mind I had 1/180, but that's my Canon 5 series back up to my Canon 1 series (which is 1/250). Mix up
2) what I didn't realise was that 645z locks out any flash firing if you use manual 1/180th or greater. Hmm, not struck that before. Normally on other slr's you'll still get a firing, but a 2nd curtain line in frame.

Well that wasted my time, and yours.

As a bonus, and thanks, you might like to check out this unique shot I took in Antarctica with the 645Z and 25mm I shot Gareth Morgan for you by Rob Suisted, well known New Zealand natural stock photographer, for NZ Geographic Magazine.


Last edited by rob8888; 06-22-2016 at 12:08 AM.
06-22-2016, 12:23 AM   #2
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 43,719
That's quite a shot- thanks for sharing! And about the flash sync speed, yup it's a little bit slower for that huge shutter.

Adam Webmaster (Site Usage Guide | Site Help | My Photography) server and development costs are user-supported. You can help cover these costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

06-22-2016, 08:00 AM   #3
Site Supporter
Site Supporter

Join Date: Jun 2008
Location: McLean, VA
Photos: Gallery
Posts: 78
QuoteOriginally posted by Adam Quote
That's quite a shot- thanks for sharing! And about the flash sync speed, yup it's a little bit slower for that huge shutter.
That is an amazing shot!
Great job in capturing the man and the message.
Thanks for sharing it.
06-30-2016, 09:54 AM   #4
Site Supporter
Site Supporter
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,716
whoa, love the shot!!

06-30-2016, 10:19 AM   #5
mattb123's Avatar

Join Date: Apr 2010
Location: Colorado High Country
Photos: Gallery
Posts: 7,723
Yeah great work!

  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
645d, 645z, body, body pc connector, camera, connector, hotshoe, hotshoe or body, medium format, pc, series, shot, thanks
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Spotmatic F: Flash on hotshoe isn't firing rocah360 Pentax Film SLR Discussion 15 07-14-2015 03:49 PM
Problem with PC connector on k10 Ti3m Welcomes and Introductions 3 04-06-2014 05:42 AM
Pentax 6x7 not firing-need help Sig M9 Pentax Medium Format 4 08-20-2013 05:34 AM
What happened to the PC connector? hillerby Pentax Film SLR Discussion 13 07-25-2009 12:16 PM
Question PC - error / issue with Modern Skin. NOT SITE MY PC HELP!! vievetrick Site Suggestions and Help 2 11-06-2008 11:24 AM

All times are GMT -7. The time now is 04:30 AM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]