Suggested Flashguns for K-x


Anvh

Link Posted 16/04/2010 - 18:50
CheekyChappy wrote:
When I have the metz in the hotshoe I don't see a pre-flash at all. Any suggestions why?

It goes very fast, you could set it on trailing curtain flash so that the flash only flash on the end of the exposure but it takes the pre-flash before the shot so if you take a long shutterspeed you can clearly see it.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

adriano210

Link Posted 21/04/2010 - 23:40
sigma 530 dg st super is good, it has: wireless, hss, fp, second curtain, and af suport light, is strong and easy to use
,,When I have the metz in the hotshoe I don't see a pre-flash at all. Any suggestions why? ''
how can you see it if when the flash work mirror is locking view finder ?
this question is very common, if exposures are proper there is a pre-flash, and this pre-flash is 0.00001s before camera flash you can see it this moment in viewfinder as a time will change in camera (i see it 180 is changing to 60 and comeback to 180 again I mean camera is measuring the exposure in flash duration.
k20,k200,e-410,program A,k1000,p30t,Z20,om10,feed5,feed4,mz6,

CheekyChappy

Link Posted 22/04/2010 - 21:05
I think I understand. So the moment I click the shutter button I see flash just before the mirror pops up - so that is the preflash. As for the main part of the flash, i presume I wouldn't ever see that through the view finder because the mirror is up and therefore blocking the viewfinder?

OK this is helping me understand and rule out some problems but I still seem to be getting a mixture of results. I have done a few portraits of work colleagues bouncing the flash off the wall and most seem to be over-exposed. Some terribly over-exposed.
Nigel
Pentax K-x, DA18-55 lens, DA50-200 lens, Metz 48 Flash

Anvh

Link Posted 22/04/2010 - 21:40
My uncle has a K-X, I see him a Monday or a Tuesday and can try out some things with my flash to see how it reacts.

With the older DSLR it often underexpose but it seems they have things the algorithm with the newer models, or at least with the K7, don't know about the K-X.

How have you set your camera and flash options when it went wrong?
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

CheekyChappy

Link Posted 23/04/2010 - 20:55
I had the camera on portrait mode. Looking at the properties of one of the pictures, it was f4.5 1/80 120mm ISO1600! - Don't know why it set itself to such a high ISO - may be the answer is in that somehow. I took it in a room with big windows with a reasonable amount of daylight coming in. I put a sheet of white static polythene on the wall and used my metz 48 with sofen bouncing off that. I used a projector screen as the back drop.
Nigel
Pentax K-x, DA18-55 lens, DA50-200 lens, Metz 48 Flash

Anvh

Link Posted 23/04/2010 - 21:01
Well that's your answer, I believe the K-7 had the same problem. I can't find the topic anymore...

If you used a fixed ISO things should go better, I think Matt had a solution though.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

CheekyChappy

Link Posted 23/04/2010 - 21:50
I'll try that. What do you think is a good ISO to use for this situation?
Nigel
Pentax K-x, DA18-55 lens, DA50-200 lens, Metz 48 Flash

Anvh

Link Posted 24/04/2010 - 12:23
For the K-X I would go for ISO200, if you see it needs to work hard you can up it to ISO400 that way the recharge time would be halved.

This the thread where Matt explains your problem but then for the K-7 but it's just as useful for the K-X
https://www.pentaxuser.com/forum/topic/pentax-k-7-flash-problems-18773/p-0

This has nothing to do with your problem but I also have a stofen but I found I get better photos with less shadows when I bounce the flash from the ceiling without the stofen, you could try that and see if you like.
I never use the Stofen now... maybe I should sell it.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

CheekyChappy

Link Posted 25/04/2010 - 11:39
Thanks Stafan

A very useful link. I had a good look at the settings on my K-x yesterday. Still getting used to the K-x! The ISO was fixed at 1600 rather than being on auto! Oops! I'll either fix it on 200 next time or try auto with a narrower range.

When you use bounce flash without the Stofen, do you use the little catchlight reflecter built into the flash?

Nigel
K-x, DA 18-55 , DA50-200, Metz 48
Nigel
Pentax K-x, DA18-55 lens, DA50-200 lens, Metz 48 Flash

Anvh

Link Posted 25/04/2010 - 12:39
The ISO thing happened to me also quite often

Mostly not because I've the camera in portrait mode, here this an unedited RAW file shot with the flash bounced on the ceiling and tilted forward just a notch I think.
As you can see you still get those sparks in the eyes, and that's why the catch light is there for.


Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

CheekyChappy

Link Posted 25/04/2010 - 19:58
Great shot. I can see how the catchlight really does work. I like the way the bokeh has turned the Christmas lights into magic blobs.

I am a bit confused. Are you saying that you would not normally use the catchlight when in portrait mode? If so why not? I presume this particular photo you did you the catchlight?

Another question, had you used the stofen for this particular shot, what sort of problems do you think would have arisen?

Nigel
Nigel
Pentax K-x, DA18-55 lens, DA50-200 lens, Metz 48 Flash

Anvh

Link Posted 25/04/2010 - 20:25
Thank you Nigel, this was without Sotfen and without a catch-light.

The catchlight doesn't work in portrait mode because when you orientate the flash up so with normal orientation you will be turning it side ways and not really up the flash so you will be look at the sides of the catch-light.
Just try it and you see what I mean

I was using quite a long lens here so I tilted the flash a bit more forward instead of straight up, so I think you actually see the flash in his eyes.

I believe the stofen only makes a difference when you aim the flash directly at your subjects, just try it out and see.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

CheekyChappy

Link Posted 25/04/2010 - 21:46
Thanks Stefan

Now I understand!

Nigel
Nigel
Pentax K-x, DA18-55 lens, DA50-200 lens, Metz 48 Flash
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