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ScottChapin

Powder Springs, US
8780 posts

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ScottChapin Moderator Awarded for his high level skills in various areas, including Aviation and Birds Photography Charter Member
Mon 29-Oct-12 08:58 PM

This has happened to me twice and I'm not sure how to trouble shoot the problem.

Scenario:
1. SB800
2. D700
3. Paramount iTTL cable with hot shoe for PW.
4. Damp and dark shooting conditions as well as cool outdoors.
5. Front curtain sync with 1/60 sec minimum SS
6. Aperture preferred at f/9.0.

It will randomly drop the shutter speed to 1/25. If I turn the flash and camera off and turn the camera on followed by the flash, it shoots at 1/60.

Of course I set the aperture and shutter in manual mode and everything is OK. I suspect the cable, but I'm not sure of that. It doesn't seem to do it when the weather is warm and dry.

Scott Chapin
Powder Springs, GA, USA

Nikonians Team Member

jim thomas

Edmond, US
1307 posts

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#1. "RE: Dragging shutter" | In response to Reply # 0

jim thomas Silver Member Nikonian since 12th Jan 2003
Wed 31-Oct-12 12:28 AM

Hi Scott,

I assume that you do not have slow sync set for the flash?


JDT

ScottChapin

Powder Springs, US
8780 posts

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#2. "RE: Dragging shutter" | In response to Reply # 1

ScottChapin Moderator Awarded for his high level skills in various areas, including Aviation and Birds Photography Charter Member
Wed 31-Oct-12 08:43 AM

I'll double check, but no, I don't. I don't think that would stop when I cycle camera and flash power. I'm thinking its the weather, but don't know.

Scott Chapin
Powder Springs, GA, USA

Nikonians Team Member

ctadin

St Louis, US
1179 posts

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#3. "RE: Dragging shutter" | In response to Reply # 2

ctadin Gold Member Nikonian since 28th Oct 2008
Wed 31-Oct-12 12:54 PM | edited Wed 31-Oct-12 12:55 PM by ctadin

Scott,
Do you have another cable you can try it with?

Cheryl

ScottChapin

Powder Springs, US
8780 posts

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#4. "RE: Dragging shutter" | In response to Reply # 3

ScottChapin Moderator Awarded for his high level skills in various areas, including Aviation and Birds Photography Charter Member
Wed 31-Oct-12 01:57 PM

Cheryl,

I wish I did. It's a pricy specialty cable from Paramount. It is a modified SC-28 with a hotshoe wired in that holds the PocketWizard Plus II transceiver. It works, seemingly so, almost always. I saw this happen 2 or 3 years ago when the weather was similar.

The first time on the SC coast, the dew point was reached as a cool night set in. This time in Cookville, TN it had been misting all day and it started after sunset when it got cool.

I had the flash, PW, and camera protected by a large oven bag, so direct moisture should not be the issue. I didn't notice condensation, so it's just strange.

Scott Chapin
Powder Springs, GA, USA

Nikonians Team Member

avm247

Rancho Cordova, US
18699 posts

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#5. "RE: Dragging shutter" | In response to Reply # 0

avm247 Moderator Awarded for high skills in documentary architecture and aviation photography Donor Ribbon. Awarded for his support to the Fundraising Campaign 2014 Charter Member
Wed 31-Oct-12 03:44 PM

I remember reading here (or maybe on another site) that the weather can cause electronics to behave irregularly. In cold low humidy weather, static electricity caused my SB-28 to fire when it wasn't supposed to. I wonder if this is the same thing with the soddered connections in the cable.

But if you are in a specific mode, I don't know why settings would change. Definitely a weird problem.



Anthony

The Moderator Page and My Gallery
The important things in life are simple; the simple things are hard.

ScottChapin

Powder Springs, US
8780 posts

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#6. "RE: Dragging shutter" | In response to Reply # 5

ScottChapin Moderator Awarded for his high level skills in various areas, including Aviation and Birds Photography Charter Member
Thu 01-Nov-12 08:21 AM

Thanks Anthony, that makes me more comfortable with my thoughts that it's a fluke and not a problem with the equipment.

Scott Chapin
Powder Springs, GA, USA

Nikonians Team Member

ScottChapin

Powder Springs, US
8780 posts

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#7. "RE: Dragging shutter" | In response to Reply # 5

ScottChapin Moderator Awarded for his high level skills in various areas, including Aviation and Birds Photography Charter Member
Thu 01-Nov-12 08:21 AM | edited Thu 01-Nov-12 08:23 AM by ScottChapin

Duplicate

Scott Chapin
Powder Springs, GA, USA

Nikonians Team Member

G