Mode 1: Recorded-TTL

Feedback-free "recorded-TTL". Whenever it was used for close distance or macro pictures, the old Digital Adapter tended to overmodulate the adapter's photocell and didn't manage to pinpoint the end of the internal flash. This mode sets the external strobe off once the internal one is quenched - with the recorded duration and a delay of mere µs! The impeccable results this mode showed in our intensive tests made us decide to set it as the new default mode. Only few users will think it rewarding to stray from this setting.

First, the duration of the internal flash is recorded with a resolution of 1µs. Once the internal flash is quenched, the external one will be set off. In this mode, only one - the external or the internal - strobe is active at the same time. However, due to the extremly short delay between the flashes, you won't be able to tell them apart. A full dump of the YS60 will take about 1/500; in order to avoid cutting the strobe with the shutter, it is recommended to keep the shutter speed below 1/250 (1/500 for the internal and 1/500 for the external flash). When using low power flashes in mixed-light situations, you can go up to 1/2000s.

Mode 2: Normal-TTL

The duration of the internal strobe is copied 1:1 to the external one. In this mode, you can instruct the flash to ignore up to 3 preflashes (in order to manually trigger a strobe during the mainflash, for example).

Mode 3: Digicam-TTL

In Recorded-TTL mode, the preflash will be slightly delayed. The mode was tested with all common compact digital cameras; none of them showed inaccurencies in its evaluation process caused by a preflash delay of some µs. However, it is possible that future cameras require very accurate timing and thus refuse to work with Recorded-TTL. In this case, you should select the Digicam-TTL mode.

Here, the preflash (once recorded) is fired in realtime, the mainflash in standard recorded-TTL mode. This results in maximum compability with preflash digital cameras. Once you quit the configuration mode, the burntime of the first flash will be recorded anew.

Mode 4: Multi-TTL

Multi-TTL is an experimental mode for particularly demanding unterwater photographers. The duration of the internal strobe will be multiplied by a factor (fixed or progressive) and "replayed" by the external strobe. It allows the user to compensate the different flash durations of big-sized ring tubes as the ones used for a Sea&Sea YS350.

As the calculations are done in realtime, sync speed up to 1/500s is still possible in this mode. If the Digital Adapter 2 is set to Multi-TTL, the multiplication factor will be determined by "setting 3" (pre-trigger delay). You may use the following factors: 1 (default), 0.5, 0.625, 0.75, 0.875, 1.125, 1.25, 1.5, 1.75, 2, x; x being a highly experimental progressive factor depending on the length of the preflash.

We discourage you from using this mode before you are fully familair with flash durations.