Optically triggered Flash

Started Apr 19, 2011 | Discussions
rocky79 Regular Member • Posts: 102
Optically triggered Flash

I am looking for a reliable optical trigger that works with the sb600 and doesn't fire on preflashes emitted from D70s popup flash ( CLS)

Any help is appreciated. Thanks !

Hugowolf Forum Pro • Posts: 12,674
Re: Optically triggered Flash

rocky79 wrote:

I am looking for a reliable optical trigger that works with the sb600 and doesn't fire on preflashes emitted from D70s popup flash ( CLS)

I don’t think there is such a thing when you mix reliable and preflash. I think you would be better looking at radio triggers.

Brian A

drh681
drh681 Forum Pro • Posts: 20,742
Re: Optically triggered Flash

They have what you are looking for at flashzebra.com
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Sailor Blue
Sailor Blue Forum Pro • Posts: 12,804
Re: Optically triggered Flash

Why not simply turn off the pre-flashes?

The Vivitar 285 HV is less than $100 and works very well as a reliable off-camera flash, with manual power control, when combined with a $15 Wein PN Peanut Slave.

http://www.vivitar.com/products/9/flashes-and-accessories/172/285-hv

http://www.bhphotovideo.com/c/product/63118-REG/Wein_W940001_PN_Peanut_Slave_100.html

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nickoly Veteran Member • Posts: 6,965
Re: Optically triggered Flash

rocky79 wrote:

I am looking for a reliable optical trigger that works with the sb600 and doesn't fire on preflashes emitted from D70s popup flash ( CLS)

Usually this is a really bad idea.

The only time this can be of value is where the slave is doing little more than going along for the ride, i.e. it plays no significant part ion the exposure. It would be far better to simply turn the pre-flashes off.

If your camera is incapable of doing that, you can get the SF-4 slave trigger for about $20 on eBay. This device can be set to ignore up to four preflashes. It can also fire on the first. It is utterly reliable and fires fashes with very low trigger voltage.

It can be a little frustrating toi use as it goes into a sleep mode. You need to constantly check that its ready lights are on!

gisle Senior Member • Posts: 2,468
Re: Optically triggered Flash

rocky79 wrote:

I am looking for a reliable optical trigger that works with the sb600 and doesn't fire on preflashes emitted from D70s popup flash ( CLS)

As for pre-flashes, I suggest you just turn them off by setting the D70s flash to manual. Unless you want to combine CLS and manual (usually a bad idea), there is no reason to have CLS enabled when you are working with manual slaves.

The SB-600 is a bit tricky to trigger with battery-less optical triggers, because it has a too low trigger voltage for some triggers. Here's an extensive test:
http://dpanswers.com/content/optical_flash.php

I've found that the one that work best is Sonia Slave multi-terminal HR .

If you want to combine CLS and manual triggering, you need something like the Phottix Strato or Pixel Knight : http://dpanswers.com/content/genrc_flash.php#mixdg
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EKB Regular Member • Posts: 317
Re: Optically triggered Flash

What lights are you using besides the SB600 and the D70's pop-up?

Unless you're doing something complex with other lights, you don't need an external optical trigger. You can use the SB600's built-in optical trigger. Set your D70 as a Commander in the menu system and set the SB600 as a remote on either TTL or Manual mode, as desired. (See pages 60-65 in the SB600 manual.)

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OP rocky79 Regular Member • Posts: 102
Re: Optically triggered Flash

I am planning to buy couple generic off camera flashes like the vivitar 285 HV

If the following plan works out then no need for optical triggering for now:

So the plan is to use the on camera (D70s) flash as a commander to fire the two sb600's. At the same time I am planning to use a wireless transmitter attached to the camera hotshoe to trigger the other two hidden generic flashes ( behind a wall)

I found this radio system:

http://cgi.ebay.com/Flash-Trigger-Aputure-Trigmaster-MX2N-Nikon-D70s-D80-/190516195283?pt=Camera_Flash_Accessories&hash=item2c5ba66fd3

Do you think this works?

WFulton Senior Member • Posts: 2,697
Re: Optically triggered Flash

rocky79 wrote:

I am planning to buy couple generic off camera flashes like the vivitar 285 HV

If the following plan works out then no need for optical triggering for now:

So the plan is to use the on camera (D70s) flash as a commander to fire the two sb600's. At the same time I am planning to use a wireless transmitter attached to the camera hotshoe to trigger the other two hidden generic flashes ( behind a wall)

I found this radio system:

http://cgi.ebay.com/Flash-Trigger-Aputure-Trigmaster-MX2N-Nikon-D70s-D80-/190516195283?pt=Camera_Flash_Accessories&hash=item2c5ba66fd3

Do you think this works?

No, it is not going to work. You cannot mix the systems that way. For one thing, you cannot open the internal flash door with something in the hot shoe. Even if your camera has PC sync connector, it is disabled when the internal flash door is open.

You are going to have to choose a Nikon Commander system, or a manual flash system. Either will work fine, but not both at the same time. This is not new info, it has been covered a jillion times.

See http://www.scantips.com/lights/awl.html#summary
for more detail why it wont work.

The D70S commander will only "individually" control one remote group anyway, so what you need is to turn the Commander off, and use four radio triggers, or optical slave triggers. SB-600 are a bit fussy about optical slave triggers but some will work, see http://www.scantips.com/lights/slaves.html

You can find "digital" optical slaves that will ignore one simple iTTL preflash, but none will ignore all of the commanders flashing.

nickoly Veteran Member • Posts: 6,965
Re: Optically triggered Flash

You seem to be suggesting a mix of optical and radio. It is probably a bad idea. For starters you need to make sure that you can use the on-board flash with somthing in the hotshoe. Not many cameras allow this. There are probably other obstaclkes too, as the manufacturers take the view that, if you are going to get smartry farty with multiple flash, you should be using their systems.

I submit you should be simply get rid if any pre-flash but, as you are hiding them behind a wall, I guess the remote flashes are not big players and the SF-4 sensor would be OK. It has apc terminal and I guess you can still get double adaptors, so you might only need one slave.

gisle Senior Member • Posts: 2,468
Mixing AWL and Generic Wireless Flash Units

rocky79 wrote:

So the plan is to use the on camera (D70s) flash as a commander to fire the two sb600's. At the same time I am planning to use a wireless transmitter attached to the camera hotshoe to trigger the other two hidden generic flashes ( behind a wall)

I found this radio system:

http://cgi.ebay.com/Flash-Trigger-Aputure-Trigmaster-MX2N-Nikon-D70s-D80-/190516195283?pt=Camera_Flash_Accessories&hash=item2c5ba66fd3

Do you think this works?

No, this will not work, for the reasons given by WFulton.

If you want to combine AWL and manual triggering, you need to use something like the Phottix Strato or Pixel Knight.

More on the subject here: http://dpanswers.com/content/genrc_flash.php#mixdg

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