All Ikelite TTL Substrobes quench as fast as any strobe on the market. TTL exposure is dictated by the camera. This means the strobes flash until a quench signal is received from the camera.

Absolutely NOT. This is the digital age!

A dual sync cord is recommended to connect a second Ikelite Substrobe to any hard-wired Ikelite TTL system. A dual sync cord is the only way to utilize the TTL electronics with both Substrobes.

A second Ikelite Substrobe can also be added as a slave strobe using the EV Manual Controller. In this case the second strobe would be firing each time with a manually set power level. The EV Controller may allow greater freedom for creative lighting by allowing you to place the second strobe at a much farther distance from the system than a cord would allow.

If using the AutoFlash AF35 kit, simply purchase the #4035.1 Secondary Flash Kit which provides everything you need to add a second strobe to your system.

The secondary strobe is designated by a red band at the end of the cord that attaches to the strobe. If you want to turn one strobe off while shooting, it must be the strobe that is connected to the red-banded end.

No. The caps including with our sync cords are intended to be dust caps for storage only. The caps fit loosely on the ends to prevent the o-rings from taking a set over long periods of time. There is not enough pressure exerted on the o-ring to keep the end watertight at depth. Diving with a dust cap on your sync cord WILL result in a flood which will NOT be covered under the one year limited warranty.

You may dive with a second strobe attached that is left in the off power position.

We do not offer any dual sync cords that would provide hard-wired attachment of two dissimilar strobes. If you are connecting an Ikelite Substrobe as your primary, most any non-Ikelite strobe that features a slave mode could be triggered off the primary flash.

We do offer dual sync cords to attach two compatible Nikonos, Sea & Sea or Inon strobes that accept a hard-wired connection. These strobes do not support the use of any Ikelite TTL circuitry, and would be used in manual exposure modes only.

Your photographs may appear more appealing with two strobes of different intensity. The same effect is achieved with two identical strobes by placing one closer to the subject. Strobe placement is how you provide the lighting ratio. TTL exposure will be more accurate with matching strobes and/or strobes with the same angle of coverage.

Attach the less powerful strobe to the secondary side of your dual sync cord, designated by a red band at the end. If using an Ikelite Digital TTL system, set both strobes to TTL. When using an Ikelite dSLR housing with built-in TTL circuitry set the internal switch to the correspond to the less powerful strobe.

If you have two Ikelite Substrobes connected by a dual sync cord, you can choose to use only one Substrobe at any time by turning off the Substrobe connected to the secondary side. The secondary side is designated by a red band at one end.