Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-03-2014, 01:41 AM   #1
New Member




Join Date: Sep 2013
Posts: 22
Compatible Flash gun

I have a old (15yrs) Cobra 480 flash gun dedicated at the time with all pentax camera, anyone know if it will be ok with a modern pentax DSLR.
I know flash guns in general fire a small voltage signal back to the camera, so I am cautious.

04-03-2014, 06:45 AM   #2
Site Supporter




Join Date: Sep 2011
Posts: 1,369
It can not communicate with any of the new pentax dslrs.

Last edited by Sliver-Surfer; 04-03-2014 at 06:54 AM.
04-03-2014, 06:49 AM   #3
Inactive Account




Join Date: Dec 2008
Location: North Carolina
Photos: Albums
Posts: 1,720
The voltage is likely fine being a TTL flash, but it won't be very useful on bodies newer than the *istD series. Looking at pictures of one on an eBay auction I don't see any manual controls or old auto mode so it will likely just fire at full power every time.
04-03-2014, 08:54 AM   #4
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,454
Hi, welcome to the Pentax Forums!

Compatibility depends a lot on the original capabilities of the flash.

The first thing to determine is whether the trigger voltage is safe. This can be measured with a volt meter across the center contact and the contact on the side of the shoe. Under 15v is probably safe. Pentax flash units are under 10v, center post "+" polarity.

Your flash may very well work with with current Pentax P-TTL flash automation since that technology dates back to about year 2000 on the MZ/ZX series cameras. This is where the flash user guide is your friend. It will show what features were supported and also how the flash was intended to be used with compatible Pentax cameras.

I would love to help more, but it is hard to find information about your flash. This is complicated by the fact that a similarly-named unit (Cobra 480AF-P) has been recently offered on Amazon and other places. That unit does not support P-TTL and will operate essentially as a fully manual speedlight on a P-TTL camera.


Steve


Last edited by stevebrot; 04-03-2014 at 09:05 AM.
04-03-2014, 10:21 AM   #5
New Member




Join Date: Sep 2013
Posts: 22
Original Poster
Cheers guys
Reply

Bookmarks
  • 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!
camera, cobra, flash, flashgun, gun, k30, pentax, pentax help
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Which cheap flash gun? Ray Hines Troubleshooting and Beginner Help 3 01-30-2013 10:44 AM
Cross Compatible Flash Question jcamero Troubleshooting and Beginner Help 2 11-01-2012 08:05 AM
Pentax Flash Gun Compatibility jabof33 Troubleshooting and Beginner Help 5 04-07-2011 11:12 PM
Budget Flash gun Pentaxboy Troubleshooting and Beginner Help 20 08-17-2009 01:28 PM
What flash gun katanaismybike Flashes, Lighting, and Studio 3 02-11-2009 04:40 PM



All times are GMT -7. The time now is 09:04 PM. | See also: NikonForums.com, CanonForums.com 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?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top