Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-25-2010, 04:53 PM   #1
Pentaxian
RonHendriks1966's Avatar

Join Date: Jan 2009
Photos: Gallery
Posts: 8,714
K-5 and X-synx

I only have a Metz AF-58 flash. This is somehow limited in function with the hotshoe. This was also with the K-7

So on the hotshoe on X-sync:

Continous Low gives 1,4 fps and this is like the book.

Continous Hi gives 2,9 fps and this is the same as with the K-7. There is some limitation in communication. A Pentax flash should work normally with more fps.

With the K-7 I could make 5,2 fps with flash connecting my Metz either true a trigger on the hotshoe or true cable and the X-sync port.

My K-5 does not do that!
- Set to AF-C (lower framerate) it fires the flash everytime.
- Set to AF-S and continous Low it fires the flash everytime at 1,4 fps.
- Set to AF-S and continous Hi it fires the flash only for the first shot of the burst (the same for connected to trigger or cable)

Can someone try this with a Pentax flash or is this just a bug?

11-25-2010, 05:59 PM   #2
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 10,108
Can someone explain the above post?
11-25-2010, 06:10 PM   #3
Veteran Member




Join Date: Sep 2007
Photos: Gallery
Posts: 975
is the flash configured such that it still has "juice" after the first shot? (so it doesn't have to re-charge; if you have it on full blast, after the first shot it will be "dead")

wheatfield: no.
11-26-2010, 07:16 AM   #4
Pentaxian
RonHendriks1966's Avatar

Join Date: Jan 2009
Photos: Gallery
Posts: 8,714
Original Poster
I set the flash to alower blast 1/128th of the power, so the flash can ceep shooting for a several hundreds of shots. The X-sync just doesn't give a signal to fire to the flash.

11-26-2010, 07:18 AM   #5
Pentaxian
RonHendriks1966's Avatar

Join Date: Jan 2009
Photos: Gallery
Posts: 8,714
Original Poster
QuoteOriginally posted by Wheatfield Quote
Can someone explain the above post?
Wel the question is: do you have a K-5 and do you have a Pentax flash like the 540? If so can you put them together and use them at Hi-continous shooting with 7 fps and still get the flash working at every shot?
11-26-2010, 06:32 PM   #6
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 10,108
I was able to fire my Metz 60 CT-2 15 times repeatably, then the flash missed on actuation, then fired another dozen or so times and missed one again.
For me this is no biggie, I'll never use my equipment this way in real life.

Is this a big deal for you or are you just trying to find problems?
11-26-2010, 07:52 PM   #7
Ole
Administrator
Ole's Avatar

Join Date: Sep 2006
Location: Copenhagen, Denmark
Photos: Gallery | Albums
Posts: 3,852
I got the following with the AF360:

Exposure mode: X
AF.S
Shooting mode continuous high
Flash in manual, 1/32 power (as low as it will go)
Flash mounted in hot shoe
RAW (DNG)
Indoors, EV 5

Result: Flash fires every time, but the frame rate is not more than about 3 frames per second.

Same result no matter how CF20 (allow flash while charging) was set.

If I turn the flash off but remain in X mode, the frame rate is at top speed.

Last edited by Ole; 11-26-2010 at 08:08 PM.
11-26-2010, 08:06 PM   #8
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 10,108
It shouldn't matter in this instance. The shutter trips, but the flash doesn't fire. Set that to 2 and the shutter wouldn't trip if the flash wasn't ready. I was firing the Metz off the PC socket, so the camera has no way of knowing if the flash is ready (it doesn't know there is a flash for that matter). The ready light was staying lit on the Metz, though at 15 shots very quickly, it wouldn't surprise me if the capacitor was down, though I would think it would misfire more than just once and then give another burst before quitting again were this the case.

11-27-2010, 01:36 AM   #9
Pentaxian
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 8,701
QuoteOriginally posted by RonHendriks1966 Quote
The X-sync just doesn't give a signal to fire to the flash.
I had a problem with flash communication with an early K7 my AF160FC ringflash was firing intermittently. However updating the firmware resolved the issue...I recommend you do the same. but you could have stumbled on a hardware incompatibility.

My AF540FGZ can keep up with a nikon D3s at 9FPS at 1/16th power.
11-27-2010, 01:25 PM   #10
Pentaxian
RonHendriks1966's Avatar

Join Date: Jan 2009
Photos: Gallery
Posts: 8,714
Original Poster
mmmmmmmm I will see a Pentax representant at ZoomExperience - Home tomorrow and ask him.

So you al think it should work normally. And mine isn't.
11-27-2010, 06:16 PM   #11
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 10,108
QuoteOriginally posted by RonHendriks1966 Quote
mmmmmmmm I will see a Pentax representant at ZoomExperience - Home tomorrow and ask him.

So you al think it should work normally. And mine isn't.
I guess you have me on ignore. I suppose I can hardly blame you for that.
11-27-2010, 06:41 PM   #12
Pentaxian
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 8,701
So he's off to see a pentax representative about a 3rd party piece of hardware, can someone pass the popcorn?
11-28-2010, 11:35 AM   #13
Pentaxian
RonHendriks1966's Avatar

Join Date: Jan 2009
Photos: Gallery
Posts: 8,714
Original Poster
QuoteOriginally posted by Digitalis Quote
So he's off to see a pentax representative about a 3rd party piece of hardware, can someone pass the popcorn?
Well not totaly only, but he also had the AF540FGZ with him. It works on hotshoe, but limited speed, I think the before mentionted 2.8-2.9 fps. No trigger with me and non on the stand so no test of it with cable.

QuoteOriginally posted by Wheatfield Quote
I guess you have me on ignore. I suppose I can hardly blame you for that.
No I haven't

QuoteOriginally posted by Digitalis Quote
I recommend you do the same. but you could have stumbled on a hardware incompatibility.

My AF540FGZ can keep up with a nikon D3s at 9FPS at 1/16th power.
That is the question, since my metz could work on the K-7 with 5,2 fps so the 7 shouldn't be a problem.

QuoteOriginally posted by Wheatfield Quote
It shouldn't matter in this instance. The shutter trips, but the flash doesn't fire. Set that to 2 and the shutter wouldn't trip if the flash wasn't ready. I was firing the Metz off the PC socket, so the camera has no way of knowing if the flash is ready (it doesn't know there is a flash for that matter). The ready light was staying lit on the Metz, though at 15 shots very quickly, it wouldn't surprise me if the capacitor was down, though I would think it would misfire more than just once and then give another burst before quitting again were this the case.
I'm still a little confused. English is for me my third language, so I understand a lot, but I don't understand everything in your post. Are you referring to the setting in the menu, for firering the internal flash, waiting for flash ready or fire anyway? This has nothing to do with the hotshoe/external flash.

Did your camera work giving 7 fps and firing the Metz everytime?????

In that case I think it would be a problem of my K-5.
11-28-2010, 07:13 PM   #14
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 10,108
QuoteOriginally posted by RonHendriks1966 Quote

I'm still a little confused. English is for me my third language, so I understand a lot, but I don't understand everything in your post. Are you referring to the setting in the menu, for firering the internal flash, waiting for flash ready or fire anyway? This has nothing to do with the hotshoe/external flash.

Did your camera work giving 7 fps and firing the Metz everytime?????

In that case I think it would be a problem of my K-5.
I was explaining to Ole why that setting would not affect what we were discussing.
Anyway, my K5 fired the flash 15 times in a row, missed once and then fired another dozen or so before missing another one, and by then the buffer was full.
So, if you have a problem with your camera, I would seem to have the same one.
Since I will never use my equipment this way, it's not something I'm going to concern myself with.
11-29-2010, 05:21 AM   #15
New Member




Join Date: Nov 2010
Location: Wassenaar
Posts: 8
Hi Ron,

problem definately is in the Firmware and must be a bug in the PTTL protocol. I have a TUMAX flash that does not work at all on K5(latest FW) either. It does flash the first time and than starts "strobing" until the batteries are flat :-) Only way it works if flashpower is set to manual (1/1) .. TUMAX works fine with K10, K20 and K7.
A faulty protocol over the socket (but also the internal flash) consumes time and brings your fps down to what you see i guess. Hoping for new firmare soon .. groeten.
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!
cable, camera, dslr, flash, hotshoe, k-5, k-5 ii, k-5 iis, k-7, k5, metz, pentax k-5, trigger
Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -7. The time now is 04:30 AM. | 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