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 Post subject: Nikon D90 & Nissin Di662
PostPosted: Mon Jan 31, 2011 9:24 am 
I am a Nikon D90 user and I bought a Nissin Di662 as my first external flashgun.
It works well when I attach the Di662 to my D90. It also works as a slave (detached from the D90) when I fire the built-in flash.
What I've been trying to do is using the Di662 as a slave flash without firing the D90 built-in flash.

I set the D90 as follows.

"Flash Control for Built-in-Flash", "Commander Mode", choose "--" for Built-in-Flash.
"GroupA", choose "TTL" (also tried "M")

So, I expected to see the Di622 fire when the Built-in Flash did not.
However, the built-in-flash still fired!! I could not stop the built-in-flash firing.

Is this because the Di622 doesn't work with commander mode? or is there something wrong with my D90?
I wonder why my D90 still fires even when I have not set it to fire.


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 Post subject:
PostPosted: Mon Jan 31, 2011 10:05 am 
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Joined: Fri Sep 05, 2008 4:42 pm
Posts: 1388
Location: The Netherlands
Nothing wrong, I think it is even mentioned in the manual, for the built-in commander to work, the built-in flash has to fire as it works with IR-signals and they can not be sent alone.

So, don't worry and continue using your D90.

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- Wout -
Lowepro Nova 200 AW filled with Nikon D90 + MB-D80
18-70 DX, 70-300 VR, 35 1.8 DX, SB-700


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 Post subject:
PostPosted: Mon Jan 31, 2011 10:06 am 
Im not at all an expert on flash, but doesnt the built in flash fire only to tell the slave when to fire, and it doesnt actually affect the image in any way?


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 Post subject:
PostPosted: Mon Jan 31, 2011 10:34 am 
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Joined: Fri Sep 05, 2008 4:42 pm
Posts: 1388
Location: The Netherlands
Unless you are real close up and/or have a reflecting surface in your picture. But in general it WILL NOT affect your picture. If it does however, there is the accessory SG-3IR if my memory recalls correctly.

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- Wout -
Lowepro Nova 200 AW filled with Nikon D90 + MB-D80
18-70 DX, 70-300 VR, 35 1.8 DX, SB-700


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 Post subject:
PostPosted: Mon Jan 31, 2011 10:47 am 
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Joined: Thu Oct 08, 2009 11:24 am
Posts: 1822
In commander mode the built in flash will fire to command the external flash to fire.

In the flash menu, you can set the built in flash to have no impact on the overall picture, or dial in a little fill if required. There is plenty of control there on board.


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 Post subject: D90 and Di622
PostPosted: Mon Jan 31, 2011 11:08 am 
Thanks you for your reply so quickly!!
Really appreciate you all!
Good to know that there is nothing wrong with my D90 and my new Di622 flash.
I'll carry on practising.

Re: Flash
When I try to use flash, the camera doesn't allow me to increase the shutter speed more than 200s. Can anybody tell me if it's possible to increase the shutter speed faster than 1/200s?


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 Post subject:
PostPosted: Mon Jan 31, 2011 11:14 am 
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Joined: Thu Oct 08, 2009 11:24 am
Posts: 1822
I have got my camera to hand, but I'm pretty sure popping it into M, you can dial in as fast a shutter as you want.

Obviously you'll be underexposing your shots and TTL metering will blast the flash away at full power, so your recharge times will be effected and batteries will run down pretty quickly...


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 Post subject:
PostPosted: Mon Jan 31, 2011 11:14 am 
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Joined: Fri Sep 05, 2008 4:42 pm
Posts: 1388
Location: The Netherlands
Does the external flash allow x-sync? Because of the speed of the shutter and the time the flash exposes your subject, you will see black bars in your picture if it is faster than the 1/200s, however in x-sync it will emit a few short flashes to expose almost continuously your subject.

There are websites with nice animations to show the said effect, dont know where exactly. Probably wikipedia :?

_________________
- Wout -
Lowepro Nova 200 AW filled with Nikon D90 + MB-D80
18-70 DX, 70-300 VR, 35 1.8 DX, SB-700


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 Post subject:
PostPosted: Mon Jan 31, 2011 11:16 am 
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Joined: Thu Oct 08, 2009 11:24 am
Posts: 1822
good point, woutK89 - with a SB600 there's no issues with banding at 1/4000th, but a 3rd party flash unit may operate differently...


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 Post subject:
PostPosted: Mon Jan 31, 2011 11:17 am 
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Joined: Thu Oct 08, 2009 11:24 am
Posts: 1822
Have a look at Dom Bower (I think) on youtube...

He's got some examples of external flash at high shutter speeds to turn day into night, and capture action...


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 Post subject:
PostPosted: Mon Jan 31, 2011 11:52 am 
ok...
Manual Mode... set the aperture... use built-in-flash to pop up...
I'm using built-in flash only now...

Shutter speed still can't be changed over 200!

why?


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 Post subject:
PostPosted: Mon Jan 31, 2011 12:25 pm 
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Joined: Fri Sep 05, 2008 4:42 pm
Posts: 1388
Location: The Netherlands
the recharge time of the flash is too slow. That is the only explanation I can think of.

_________________
- Wout -
Lowepro Nova 200 AW filled with Nikon D90 + MB-D80
18-70 DX, 70-300 VR, 35 1.8 DX, SB-700


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 Post subject:
PostPosted: Mon Jan 31, 2011 1:04 pm 
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Joined: Thu Oct 08, 2009 11:24 am
Posts: 1822
http://nikond90blog.blogspot.com/2009/0 ... video.html

here you go


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 Post subject:
PostPosted: Mon Jan 31, 2011 1:38 pm 
right.... so I don't seem to be able to go beyond 1/200s when I use flash (no matter built-in-flash or external output) unless I get special equipment.

Thanks guys for your help.


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 Post subject:
PostPosted: Mon Jan 31, 2011 2:33 pm 
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Joined: Fri Sep 05, 2008 4:42 pm
Posts: 1388
Location: The Netherlands
Phil, I was searching so much for much that video, seemed it was a link to Youtube.... http://www.youtube.com/watch?v=Sqf3TM-WGTE

Was much easier.

_________________
- Wout -
Lowepro Nova 200 AW filled with Nikon D90 + MB-D80
18-70 DX, 70-300 VR, 35 1.8 DX, SB-700


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