With guide number 40, the Nissin i40 is small, portable & powerful with mounts available for most camera systems. More information at www.reddotphoto.com.sg. Nissin i40 Compact Flash for Four Thirds Cameras, 131' at ISO 100 and 105mm Guide Number, 24-105mm Zoom Range, 0.1-4 Sec Recycle Time, Tilts Upward 90deg. Add to Cart Overview Specs Reviews (17) Q&A Accessories Compare Nissin i40: Utility Unlimited. 28 Jul 2014 . With the right use of lighting technique and a feature-filled tiny flash like the Nissin i40, I would answer that with a resounding NO. Features. Nissin i40. This TTL flash has a guide number of 40 (in metres, at ISO 100, when the zoom head is The flash power of the i40 is up a little over the Di466 with a guide number of 40 (metres) at ISO100 compared to 33. Both of these are when zoomed to an equivalent of 105mm (53mm on Olympus cameras). Interestingly, the i40 has a guide number of 32 at 25mm so that's quite good for a "standard" focal length. The Nissin i40 outclasses them all with a guide number of 40. The flash is powered by 4 AA batteries. That helps the battery life, makes the flash charge fast but does make the unit quite heavy. Nissin i40 - an exceptional pocketable flash. By sverma | Published December 18, 2014. The small Nissin i40 is made for Canon, Nikon, Micro Four Thirds, Sony and Fuji cameras. With a guide number of 40 or at ISO 100 of 131? at 105 mm and 89? at 35 mm position, the unit is suitable The Nissin i40 Flash is a shoe-mounted, compact flash unit with a Multi-Interface Shoe featuring ADI / P-TTL functionality. It features a guide number of 131' at ISO 100 and in the 105mm position for providing excellent coverage within a zoom range of 24 to 105mm, or down to 16mm with the built-in wide-angle diffuser. Nissin i40 Flash for Nikon - Flashes and Speedlights - Spec Sheet. Back to Website . Sign out . Cameras & Gear Exposure / Flash Control. TTL, manual. Guide Number. 40m / 130ft. Angle of Coverage. 24