Dear all, Currently my underwater photography equipments are: Olympus XZ-1, PT-050, Inon Strobe D2000 and focus light Inon LE550W. My fave is taking macro photos but not limit myself to wide angle photos. For macro I use external lens Subsee+10 diopter. But in practise underwater it was so difficult to focus on the subject sharply using this external lens - although with the help of Inon focus light from the strobe and Inon LE550W. I was advised that I need more light in order to get a sharp and faster focus. I also want to buy second strobe and since I have limited budget, I am wondering if focus light from the strobe would be enough to help focusing... Could you please advise me - which one is better to buy in order to help the focus issue: Strobe with focus light (like INON D2000) or Focus light only (I am thinking of Sola 600)? If you have any other advise, please feel free to let me know..I really want to use my subsee lens properly..such as shame I can not get it focus properly... Thank you in advance!