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2 minutes ago, ianmarsh said:

1) The Retra is "Brand Agnostic" in the sense it can be used on all camera platforms as long as there is a controller available for that brand. Otherwise it is a simple manual strobe.

It can shoot manual or TTL when you have a TTL-capable triggering flash, like a pop-up flash on many compacts and mid-size cameras.

4 minutes ago, ianmarsh said:

4) The Smart SL feature on Retra is a way to bypass the TTL underwater if you choose to shoot manual, once the board is set up for TTL and the housing closed. It ignores the pre-flash TTL pulses and just fires the strobe. Output will be dependent on the power setting on the back of the strobe. Not sure if this thinking is correct?

5) Not sure what would happen if the Retra strobe was set at the "Manual" on position #1 and the TTL board was set in TTL mode? Would it accomplish the same thing as 4) above? 

The Smart SL mode allows the strobe to 'learn' the TTL pre-flash sequence of the controlling camera; you don't use it to actually shoot. Engage Smart SL - the strobe indicator light will start flashing. Fire a shot, wait for 2 seconds, it should stop flashing - this indicates that the strobe is calibrated. Turn to manual mode and start shooting - it will ignore the TTL pre-flash pulses. This is for cameras where you can't turn off the pre-flash, like all Sony RX100 and A6xxx series cameras.

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On 3/8/2020 at 10:53 AM, ianmarsh said:

Got it! Thanks

 

ian

Correction - I finally got them in the water today, triggering off the pop-up flash on my Sony A6300, and turns out I was wrong about how the Smart SL mode works. There is no need to turn back to manual mode - I set the strobes to U2 (Smart SL), they start flashing yellow, I take a random shot to make the camera flash fire and they turn solid yellow. From that point on, every time I take a shot, they ignore the pre-flash (which cannot be turned off on my camera) and the power is adjusted using the left knob. If I turn the right knob to a different mode (TTL, turn off, whatever) then a new engagement of U2 (Smart SL) requires a new calibration shot. The knobs themselves are a joy to operate by the way - today was the first time I shot manual strobes and I was able to get it going almost right away.

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Sounds great, Barmaglot. Thanks!

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So then the Retra strobe Smart SL circuit works somewhat like the magnetic reed switch for the ACC on an Inon strobe? Magnet in to ignore preflash and magnet out to emulate preflash except now it is done by a calibration shot per the operating mode desired? Kind of confusing, as if the magnet switch were not ;). 

 

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It's actually pretty convenient; I was switching between TTL and manual mid-dive today without issues. 

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On 3/2/2020 at 12:34 PM, Pavel Kolpakov said:

Hi Joss,

We work with Nikon HSS now for Retra profile.

The product #11031-HSS (for Nikon) will be available soon.

Hi Pavel, is the #11031-HSS (for Nikon) available?

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Posted (edited)
4 hours ago, Joss said:

Hi Pavel, is the #11031-HSS (for Nikon) available?

Not yet. We had some delays because of lockdown.

Product will be available soon.

Edited by Pavel Kolpakov

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Dear all!  

We tested the s-TURTLE SMART(SONY) and the i-TURTLE SMART(NIKON) with RETRA PRO in HSS mode.

BTW  in TTL too!  :) 

The result was great!  
The Sony A7R2 1/8000. , The Sony A6000 1/4000 and the Nikon D7100 knows the 1/8000 shutter speed. 
We will make a blog in Our website soon how works the HSS and why need the Retra Pro to use it.  


Here is the links to the results:  

Sony A6000. with Seafrogs saltedline housing:  

Sony A7R2 

And last not but least the i-TURTLE SMART (nikon) controlled Retra PRO strobe results.

If you need more info please write us!

Regards

Balazs Kurucz

 

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Posted (edited)
On 5/21/2020 at 5:25 PM, Joss said:

Hi Pavel, is the #11031-HSS (for Nikon) available?

Hi Joss,

UWTechnics #11031-HSS TTL board for Nikon is available now in online store:

https://uwtechnics.com/index.php/online-store/ttl-converters/for-nikon/ttl-converter-for-nikon-nauticam-housings-detail

New product firmware also includes updated TTL-profiles for Inon, Sea&Sea, Ikelite, Retra and Subtronic strobes. Available TTL boards for the following housings: Nauticam, Sea&Sea, Hugyfot, Seacam, Subal, Seafrogs (Meikon), Sealux, Aquatica.

Today i tested this #11031-HSS board (for Nauticam) together with Retra Pro strobe at 1/8000 shutter speed, it worked fine. 

NikonTTL-HSS-Retra.jpg

Edited by Pavel Kolpakov

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On 6/26/2020 at 7:49 AM, Pavel Kolpakov said:

Hi Joss,

UWTechnics #11031-HSS TTL board for Nikon is available now in online store:

https://uwtechnics.com/index.php/online-store/ttl-converters/for-nikon/ttl-converter-for-nikon-nauticam-housings-detail

New product firmware also includes updated TTL-profiles for Inon, Sea&Sea, Ikelite, Retra and Subtronic strobes. Available TTL boards for the following housings: Nauticam, Sea&Sea, Hugyfot, Seacam, Subal, Seafrogs (Meikon), Sealux, Aquatica.

Today i tested this #11031-HSS board (for Nauticam) together with Retra Pro strobe at 1/8000 shutter speed, it worked fine. 

NikonTTL-HSS-Retra.jpg

Hi Pavel,

Is there a way to update existing boards (in my case the one that ships with the NA-D500 housing) to work with HSS or do we need the new hardware?

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6 hours ago, Hannes_taucht_ab said:

Hi Pavel,

Is there a way to update existing boards (in my case the one that ships with the NA-D500 housing) to work with HSS or do we need the new hardware?

Hardware is little bit different from previous boards. New HSS boards are much more powerful than previous, the LED output power is significantly increased.  Such optical power is necessary for Retra Pro optical TTL input. Also, the firmware is new, it includes Retra Pro TTL profile and HSS support module.

By the way, new TTL-Converter for Nikon (#11031-HSS) got updated TTL profiles of all other strobes too (Inon, Sea&Sea, Ikelite, Subtronic, Retra). This is totally renewed improved firmware.

Edited by Pavel Kolpakov

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On 2/24/2020 at 12:59 AM, Pavel Kolpakov said:

According the TTL-Converter #11075-HSS firmware, -

If user keeps camera system in TTL flash mode, then normal X-Sync speed limitation works automatically (1/250), as necessary for all underwater strobes mono-flash.

When user set Manual mode in flash menu ("WL" command), the system performs normal manual flash in all range of casual shutter speeds (up to 1/250), but in high speeds range 1/320 ... 1/8000 it works as HSS pulsating flash with variable frequency and necessary timings.

Pay attention, that HSS pulsating flash works only for Retra profile (TTL-Converter switch pos.-7), but for other uw strobes (other switch positions) at high shutter speeds the flash is simply Off automatically (but high speeds 1/320 ... 1/8000 are still available for shooting with ambient light).

 

Thanks, Pavel! 

Does the above quote also apply to the Nikon variant? Especially the highlighted part about manual flash at "normal" shutter speeds?

 

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1 hour ago, Hannes_taucht_ab said:

Thanks, Pavel! 

Does the above quote also apply to the Nikon variant? Especially the highlighted part about manual flash at "normal" shutter speeds?

 

Yes, of course, it works the same way on all versions of UWTechnics HSS boards. 

If user chooses "Auto FP" in Nikon sync menu, it switches system to M mode automatically. When shutter speeds are in limit up to 1/250, it works by normal sync mono flash. If use 1/320-1/8000 high speeds, then system automatically switches to HSS mode.

Edited by Pavel Kolpakov

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On 6/26/2020 at 5:49 PM, Pavel Kolpakov said:

Hi Joss,

UWTechnics #11031-HSS TTL board for Nikon is available now in online store:

 

Thank you Pavel, I'm looking forward to try it. Could you please send me the manual?

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12 hours ago, Joss said:

Thank you Pavel, I'm looking forward to try it. Could you please send me the manual?

Hi Jose,

You can look online User Manual for TTL-Converter #11031-HSS here:  https://ru.calameo.com/read/005560836d01ae694dc7e

I also can send PDF, if you give me an e-mail.

Edited by Pavel Kolpakov

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