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07-01-2009, 03:00 PM   #46
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QuoteOriginally posted by xixco Quote
sorry to threadjack, but i stumbled on this earlier and excitedly just drove to the nearby park on my lunch hour to try it ...and it didn't work. My K10D kicked back to 180th/second every time i hit the shutter. my 540flash was mounted directly onto the camera. Was that the problem? Or did I miss something??
Hit the function button, drop down into the flash settings and choose the high speed sync option.

07-01-2009, 06:41 PM   #47
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QuoteOriginally posted by GoldenWreckedAngle Quote
It was shot at 1/320 with flash. Teach me how to do that with my Pentax and I'll kiss ya!
I put the flash on High-Speed Synch, shutter at 1/400s and aimed at the fastest moving object in the room - a rotating ceiling fan at normal operating speed.

Getting late, I'll have to post the photos tommorow.

Here's what I can see :-
Does HSS produce multiple images of fast moving objects ?
Strictly as a matter of electronics, the answer is "Yes" because that's how HSS functions.
As a matter of practical photography ? The fast moving fan blades come out showing motion blur - not surprising at 1/400s. I can't see multiple sharp images, which would have been ugly. You can print it on A4-size, view it on full screen, still OK.

I've used at various times
a. High shutter speed with High-Speed Synch to deliberately darken the ambient background. It works fine with common photography situations (except high speed objects, where you get motion blur).
b. Rear-curtain synch to get the "blurred motion" effect ending with a final sharp flash image.
The limits to the Pentax flash are known, and have rarely bothered me as a "problem".

I believe you are looking for high-shutter speed together with a single flash strobe (just like normal X-synch).
I respect your requirements, I think the conclusion is the Pentax camera/flash won't do it.
07-01-2009, 07:18 PM   #48
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QuoteOriginally posted by GoldenWreckedAngle Quote
Hit the function button, drop down into the flash settings and choose the high speed sync option.
*smacks head*
so simple, yet so elusive

Thanks!!
07-01-2009, 08:35 PM   #49
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QuoteOriginally posted by kittykat46 Quote
I put the flash on High-Speed Synch, shutter at 1/400s and aimed at the fastest moving object in the room - a rotating ceiling fan at normal operating speed.

Getting late, I'll have to post the photos tommorow.

Here's what I can see :-
Does HSS produce multiple images of fast moving objects ?
Strictly as a matter of electronics, the answer is "Yes" because that's how HSS functions.
As a matter of practical photography ? The fast moving fan blades come out showing motion blur - not surprising at 1/400s. I can't see multiple sharp images, which would have been ugly. You can print it on A4-size, view it on full screen, still OK.

I've used at various times
a. High shutter speed with High-Speed Synch to deliberately darken the ambient background. It works fine with common photography situations (except high speed objects, where you get motion blur).
b. Rear-curtain synch to get the "blurred motion" effect ending with a final sharp flash image.
The limits to the Pentax flash are known, and have rarely bothered me as a "problem".

I believe you are looking for high-shutter speed together with a single flash strobe (just like normal X-synch).
I respect your requirements, I think the conclusion is the Pentax camera/flash won't do it.
I'm starting to do a little more experimenting with HSS myself. I wish the new Radio Popper and Pocket Wizard triggers supported the Pentax platform so I could do off camera sync with studio strobes up to 1/4000. Oh wait, never mind. That wouldn't work on a Pentax even if it was supported because the hot shoe wouldn't be hot above 1/180 anyway.

07-02-2009, 09:34 AM   #50
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Please stop pointing (remainding me of) the limitations.
By the way, I'm sure the off camera sync will work with a cable in HSS. Didn't try it though...
07-02-2009, 10:55 AM   #51
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QuoteOriginally posted by octavmandru Quote
Please stop pointing (remainding me of) the limitations.
By the way, I'm sure the off camera sync will work with a cable in HSS. Didn't try it though...
LOL - Sorry about that mate. Guess I'm in a bit of a rut on this one and it would probably do me a lot of good to get out of it... one way or another.

Funny you mention the cables. I find myself hand holding my off camera flash out at arms length sometimes and cursing the hit and miss results of the pop-up wireless controller. I'd say that probably about 50% of the time a cable would solve some of my frustrations. Sometimes old school has its place.
07-02-2009, 11:27 AM   #52
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QuoteOriginally posted by xixco Quote
*smacks head*
so simple, yet so elusive
Be aware that HSS will not work if Auto-ISO is enabled, at least not in Av mode on the K10D.
07-02-2009, 12:54 PM   #53
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my advice?

stop using a pentax

i switched from my nikon to a k10d and am very happy with it so far, the 1/180 sync thing can be annoying on very fast moving objects, but for the most part, works fine for me

07-02-2009, 01:26 PM   #54
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QuoteOriginally posted by writeswithlightphoto Quote
my advice?

stop using a pentax

i switched from my nikon to a k10d and am very happy with it so far, the 1/180 sync thing can be annoying on very fast moving objects, but for the most part, works fine for me
Advice noted, thanks.
07-02-2009, 01:48 PM   #55
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QuoteOriginally posted by GoldenWreckedAngle Quote
... I hit the wall at 1/90 even with the pop-up on my K10D. Can anyone else with a K20D confirm 1/180 sync in rear curtain sync mode?
- It's 1/100, not 1/180 with onboard one. I found that after my daughter's graduation prom looking at (some) burned faces from shots taken when she was on stage (low light room and black robes). Really it was not funny to learn that way...

Last edited by silverflower; 07-02-2009 at 01:54 PM.
07-02-2009, 02:09 PM   #56
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You people are confusing the hell out of me. The biggest complaints mentioned in this thread seem to work for me on k20 and Metz 58.

HSS up to 1/4000 - check
Rear curtain to 1/180 X-sync with one click of the mode dial - check.
07-02-2009, 02:11 PM   #57
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QuoteOriginally posted by GoldenWreckedAngle Quote
Advice noted, thanks.
im not trying to be a dick, and i understand that message boards are for opinions and to vent, but the flash sync thing isn't happening, so if you want it to work, switch camera bodies, and stop coming up with some witty remark to everyone's suggestions

let it go
07-02-2009, 03:42 PM   #58
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QuoteOriginally posted by writeswithlightphoto Quote
im not trying to be a dick, and i understand that message boards are for opinions and to vent, but the flash sync thing isn't happening, so if you want it to work, switch camera bodies, and stop coming up with some witty remark to everyone's suggestions

let it go
Agreed.



What's the point of this thread? Venting? Solutions? Sympathy? Need a Pentax shoulder to cry on?

Most people here take the "use what works" path and give that advice to others. What else do you want from us? You've already complained to the only Pentax employee here (that we know of) so what else is there? I'd hope JC took note of your concern.

You would not be the first nor only person to have multiple cameras to do different jobs.
07-02-2009, 05:09 PM   #59
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That't the kind of attitude we like... For your info, there's lot of interesting info in this thread, if you bother to read. There's nothing false about the limitations we have. And from limitations, emerges creativity in finding proper solutions, which is part of the game.
So, can we continue our whining, please? I've got some ideeas I'd like to work on.

No wonder JCPentax was acting so defensive.
07-02-2009, 06:19 PM   #60
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QuoteOriginally posted by GoldenWreckedAngle Quote
I've been leaving my K10D flash in rear curtain sync mode lately so it's already there when I need it for an action shot. I shot an outdoor event recently and could not get my camera to shoot faster than 1/90 in manual mode when I had my Sigma EF530DG flash turned on. Turn off the flash and I could go as high as I wanted but the second I turn on the flash my shutter speed drops to 1/90. It took me a while to figure out that this is the max sync speed with rear curtain sync. Ugh!

I'm just about done with my K10D's flash limitations... seriously, last straw here.

I want 1/250 sync
I want my flash to fire even when I exceed the sync speed
I want to be able to leave my flash set to rear curtain without loosing even more shutter speed

Pentax, please, make me a camera that takes flash photography seriously. Thank you.
dunno if this was mentioned before, but pttl with a 540's hss will let you exceed the sync easily. it's cool for 1/1000 + full power, etc. i've been meaning to try it with a sound trigger. however, reading the thread makes me think you love trail curtain a little too much and just wanna rant.
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