Sea & Sea Guide Number Controller for the YS-350TTL/Pro Underwater Flash.
SKU: SSGNC
The Guide Number Controller is an auxiliary device for use with camera or housing and the dedicated YS-350 TTL/PRO strobe. The dual control dials allow subtle manipulation of single or dual strobe output in 1/3 EV increments from full to 1/16th power. <br><br> The Guide Number Controller enables the highest level of manual flash exposure management for nuances in illumination, Compatible with camera systems equipped with 5-pin bulkheads. <br><br> Dimensions:<br> (H x W x D) 3.2 x 3.1 x 3.5 inches / 81 x 80 x90mm <br> Weight: <br> 8.8 oz/ 250g