Understanding D7000 and Inon Z240 Settings

[mcgowman 2]

Hi all,

 

I've been using a D7000 in a Nauticam housing connected to a pair of Inon Z240 (Type 4) over fiber optic cables and using TTL exposure fine for some time. I'm relatively pleased with the results.

 

This has been mostly on day trips where I might do a couple of dives in a day. Am going on vacation where I hope to make about 4 or 5 dives a day. I'd like to maximize my camera's internal battery life, so I don't have to crack open the housing between dives. So, am thinking about moving from TTL to manual exposure.

 

The D7000 flash exposure can be set for TTL or Manual mode (Full thru 1/128 sec). I know how to set the Inon in sTTL mode (Main Mode Dial on sTTL, EV Control Dial on 'B', ACC button UP/On).

 

But when it comes to manual mode, I have the following questions:

- With the D7000, can I set the internal flash to 1/128 sec to trigger the Z240?

- Would the Z240 settings then be this?: Main Mode Dial on M (or Full), EV Control Dial on whatever value, and the ACC button UP/On

 

I'm assuming the D7000 requires the ACC button to be UP/On, regardless of my camera flash setting and the same for both sTTL and Manual modes on the Z240.

 

Is the above correct? Thanks in advance.

 

[okuma 64]

For TTL:

Left dial to S-TTL

Right dial to 12 o'clock 'B'

Magnet switch up

 

For Manual

Left dial to M

Right dial to desired power level.

Magnet switch up

[mcgowman 2]

Thanks for the quick reply Okuma. That clears up the settings on the Z240.

 

Am still wondering about the settings on the D7000 itself. Can I set the internal pop-up flash to 1/128th sec? or do I need something else?

 

TIA

[bvanant 195]

Yes set the internal strobe to manual and 1/128 power. Should be no problem with the Inons.

Bill

[mcgowman 2]

Excellent. Thanks to all for the feedback.

[Alex_Tattersall 90]

I’ve found, if you have the camera flash output set to Manual (1/128th power), the ACC button on the strobe needs to be ‘IN’.

 

If by contrast you have the camera flash output to eTTL, then the ACC button should be ‘OUT’. You are basically telling the strobe that there will be a preflash and to ignore this and fire on the main flash.

[mcgowman 2]

I’ve found, if you have the camera flash output set to Manual (1/128th power), the ACC button on the strobe needs to be ‘IN’.

 

If by contrast you have the camera flash output to eTTL, then the ACC button should be ‘OUT’. You are basically telling the strobe that there will be a preflash and to ignore this and fire on the main flash.

 

Thanks Alex.

 

So, does this mean the D7000 doesn't have a 'pre-flash' when in manual mode?

[tdpriest 115]

So, does this mean the D7000 doesn't have a 'pre-flash' when in manual mode?

 

Yes.

[mcgowman 2]

Thanks much.

[Kelpfish 15]

I’ve found, if you have the camera flash output set to Manual (1/128th power), the ACC button on the strobe needs to be ‘IN’.

 

If by contrast you have the camera flash output to eTTL, then the ACC button should be ‘OUT’. You are basically telling the strobe that there will be a preflash and to ignore this and fire on the main flash.

 

Old thread alert, I know. Sorry, but wanted to chime in.

 

I was trying to get my Inon's to work with fiber optics because I have way to many failures with the wired cables. Alex's explanation above was the only way I could get the strobes to be controllable on manual. Set the D7100 to manual 128th, push in the ACC, adjust away. Opposite with TTL, set the pop up flash to TTL, release the ACC to the out position, set to a tty mode, done. Near perfect TTL.

 

Joe

 

PS, not sure why I am showing up as a guest. I am logged in. Guess I need to come around more often.

Edited October 23, 2016 by Kelpfish