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The Interfit S1 Monolight Offers TTL with Canon and Nikon DSLRs

Chris Gampat
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10/13/2015
2 Mins read

Last Updated on 10/13/2015 by Chris Gampat

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It looks like the world of monolights are getting some new competition when it comes to TTL metering transmission. Profoto was the first to the pot, then Phottix and now Interfit with their new S1. The Interfit S1 is a 500ws monolight that they’re stating does both TTL transmission and HSS (high speed sync) with Canon and Nikon DSLRs.

The Interfit S1 can work function by either using a battery pack or AC power connectors, and the company claims that their 4500mAh Li-Ion battery provides up to 350 full power flashes in Manual and TTL modes and over 400 full power flashes in High Speed Sync mode. Said battery seems to be incorporated into the body of the monolight in the same way that Profoto does with their B1.

The Interfit S1 has a 7 stop power range and these can be dialed up/down in 1/10ths of a stop. When shooting in HSS, the TTL transmission can be dialed in in up to 1/3rd stops. This light also offers a very fast flash duration at 1/19,000th at minimum power and 1/1,000 at full power.

More tech specs and images are after the jump, and when the Interfit S1 launches in early December, the package will retail for $999.

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Specifications S1 S1a
Maximum Watt/Seconds 500Ws
Guide Number

100ISO, 1/125sec., 3m (10’)

 48.7m (160’)
Flash Power Range 7 Stops (2.0 – 8.0)
Flash Variability 1/10th stop increments
Recycle Time 3 sec. (AC & DC) 2 sec.
Flash Duration 1/1,000 – 1/9,000 (max-min power)
Color Temperature 5700k +/- 100k
Modeling Lamp 10w LED (off, 50%, 100%)
Wireless Control Interfit TTL-C/N 2.4GHz Remote

Sync Port, IR/Optical
Shooting Modes Manual, TTL (Canon/Nikon), HSS
Maximum Sync Speed 1/250 sec. In normal sync mode

1/8000 sec. in High Speed Sync mode
Operating Voltage 100-240 VAC 110 VAC or 220VAC
DC Battery Type 4500mAh Li-Ion
Battery Life 350 full power flashes
Battery Charge Time 3 Hours
Fan Cooled Yes
Auto Dump Yes
Temperature Regulation Yes
Dimensions (Length x Diameter)

Inc. glass dome and handle

 34 x 13cm

(13.4 x 5.1”)

 32 x 13cm

(12.6 x 5.1”)
Weight

Inc. battery (S1 only)

 2.85kg

(6.3lb)

 2.25kg

(4.9lb)

SKU: INTS1

Interfit S1 AC/DC TTL and HSS Flash – $999.99

 

battery canon hss Interfit S1 monolight nikon power TTL
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Chris Gampat is the Editor in Chief, Founder, and Publisher of the Phoblographer. He provides oversight to all of the daily tasks, including editorial, administrative, and advertising work. Chris's editorial work includes not only editing and scheduling articles but also writing them himself. He's the author of various product guides, educational pieces, product reviews, and interviews with photographers. He's fascinated by how photographers create, considering the fact that he's legally blind./ HIGHLIGHTS: Chris used to work in Men's lifestyle and tech. He's a veteran technology writer, editor, and reviewer with more than 15 years experience. He's also a Photographer that has had his share of bylines and viral projects like "Secret Order of the Slice." PAST BYLINES: Gear Patrol, PC Mag, Geek.com, Digital Photo Pro, Resource Magazine, Yahoo! News, Yahoo! Finance, IGN, PDN, and others. EXPERIENCE: Chris Gampat began working in tech and art journalism both in 2008. He started at PCMag, Magnum Photos, and Geek.com. He founded the Phoblographer in 2009 after working at places like PDN and Photography Bay. He left his day job as the Social Media Content Developer at B&H Photo in the early 2010s. Since then, he's evolved as a publisher using AI ethically, coming up with ethical ways to bring in affiliate income, and preaching the word of diversity in the photo industry. His background and work has spread to non-profits like American Photographic Arts where he's done work to get photographers various benefits. His skills are in SEO, app development, content planning, ethics management, photography, Wordpress, and other things. EDUCATION: Chris graduated Magna Cum Laude from Adelphi University with a degree in Communications in Journalism in 2009. Since then, he's learned and adapted to various things in the fields of social media, SEO, app development, e-commerce development, HTML, etc. FAVORITE SUBJECT TO PHOTOGRAPH: Chris enjoys creating conceptual work that makes people stare at his photos. But he doesn't get to do much of this because of the high demand of photography content. / BEST PHOTOGRAPHY TIP: Don't do it in post-production when you can do it in-camera.