Nissin MF 18 ring flash Sigma EM- 140 macro ring flash is good.

Recently, I happened to be studying to buy a ring flash and read a lot of comments. If I had to choose between these two brands, I would definitely choose Nissin, because he is a professional flash. Nissin was chosen because it has several characteristics: wireless TTL off-machine flash, "ring flash" with ring flash tube, adjustable lamp cap, which can be used on the lens with 77mm filter interface at most. At present, the only macro ring flash with color LCD screen on the market, and the trigger terminal of external flash is only available on professional flash, USB computer online port and external power socket. The price is around 2400. Nissin can only be applied to Nikon and Canon cameras now. Sigma EM- 140 Macro macro macro ring flash costs about 2800, and the attached expandable lamp cap adapters are only 55mm and 58mm, others need to be purchased by yourself. It is really inconvenient for users who use Nikon 2470,70200. The advantages are that the flash tubes on both sides can be controlled to realize the flash control, and according to the needs of the light change range, it also has the function of wireless TTL external flash when used alone or at the same time. Suitable for cameras SA-STTL (Sigma), EO-ETTL (Canon), MA-ADI (Minolta), NA-iTTL (Nikon) and PA-PTTL (Pentax).