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Interfit S1 500Ws HSS TTL AC and Battery-Powered Off-Camera Flash, Color Accurate 5700K +/- 100K, High Speed Sync to 1/8000s, Includes AC Power Pack and Removable Inline Lithium Ion Battery

3.7 3.7 out of 5 stars 16 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Interfit Photographic
Compatible Mountings Canon
Camera Flash Built-In
Flash Sync Speed 1/8000s
Number of Batteries 1 Lithium Ion batteries required.

About this item

  • Comes Complete with International Multi-Voltage AC Power Adapter and Removable Inline Lithium Ion Battery - get studio and on-location functionality at the time of purchase: no need for expensive accessory addons, it's all included in the price and offers extreme power flexibility.
  • An industry-leading battery life of 350 Full Power 500 Ws flashes per charge ensures uninterrupted photoshoots.
  • High speed sync to 1/8000th of a second when used with the Interfit S1 remote allows for balancing and cutting ambient light in the background as well as the use of wide apertures such as f/1.2.
  • 5700K color temperature with an industry-leading and extremely consistent ±100K throughout the entire range minimizes color correction time in post-production.
  • Mount is compatible with a large scope of adapter rings and modifiers such as softboxes, reflectors, and grids,500Ws monolight with HSS and TTL for Canon, Nikon, and Sony.
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Interfit

Interfit S1 500Ws HSS TTL AC and Battery-Powered Off-Camera Flash, Color Accurate 5700K +/- 100K, High Speed Sync to 1/8000s, Includes AC Power Pack and Removable Inline Lithium Ion Battery

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Product Description

The Interfit S1 is the lighting industry's first affordable, high quality advanced monolight to combine lithium-ion battery and international multi-voltage ac power adaptor into one comprehensive kit. Through The Lens Metering in TTL Mode uses the S1’s entire 7-stop power range (500W – 7.8Ws), is automatically calculated in 1/10th stop increments and allows for ± 3 stops of exposure compensation. Manual Mode utilizes the entire 7-stop power range, controllable in 1/10th stop increments. High Speed Sync in Manual Mode at up to 1/8000th of a second shutter speed using the top 4 stops in the power range (500Ws – 62.5Ws) and is manually adjustable in 1/3-stop increments. Package includes: International Multi-Voltage AC Adapter that can power the unit with or without the battery in place, maximizing battery longevity. The integrated and exchangeable lithium-ion battery sits flush with the flash body, offers 350 full power flashes and allows for cable-free and rapid setup and repositioning of lights when power outlets are not available at a shoot. The S1 is Color Accurate to within ±100 Kelvin using IGBT technology. This technology also allows for Short Flash Duration between 1/1000th to 1/9000th of a second; useful for freezing action and sports motion. Integrated Wireless remote technology offers TTL flash exposure compensation and manual power control in three groups using the S1 Remotes for Canon or Nikon (sold separately). The Frosted Glass Dome softens and disperses light evenly through large and small light modifiers while protecting the user-replaceable flash tube. Aluminum Construction with an attractive matte finish gives the unit greater heat dispersion efficiency and durability. The S1 features the ever popular Bowens S-Type Mount, making it compatible with a large scope of adapter rings and modifiers such as softboxes, beauty dishes, reflectors, and grids. Allowing for firmware upgrades, the S1 is easily updatable, when new camera models are released.

Customer reviews

3.7 out of 5 stars
3.7 out of 5
16 global ratings

Top reviews from the United States

Dustin W.
5.0 out of 5 stars Huge fan
Reviewed in the United States on August 17, 2019
Verified Purchase
Amazing light, I now have 4 of these for Architectural Photography and I have yet to see any issues. Great option if you are looking for B1 similar product without the huge price tag.
One person found this helpful
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MPH
3.0 out of 5 stars You need to buy the remote to use high-speed sync!!!
Reviewed in the United States on June 17, 2017
Verified Purchase
I was all set up to go on location and use my awesome new light, when I decided to test it out first. I have pocket wizards, so I didn't see a need to buy the remote with this light. Well, come to find out, you can only use the high-speed sync with the Interfit remote! So just a fair warning, if you want to use the high-speed sync with this light, buy the remote!!
5 people found this helpful
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Jose Pagãn
5.0 out of 5 stars ETTL at it's finest!
Reviewed in the United States on September 2, 2016
Verified Purchase
Love the versatility of this light! Great for on location and run and gun shoots where there is little time to fine tune exposure.
6 people found this helpful
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Seth Anderson
5.0 out of 5 stars This is great alternative to the Profoto B1
Reviewed in the United States on December 12, 2016
Verified Purchase
The frosted bulb cover came cracked, but Interfit quickly sent out a replacement. This is great alternative to the Profoto B1.
8 people found this helpful
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Naomi
1.0 out of 5 stars One Star
Reviewed in the United States on January 18, 2017
Verified Purchase
They didn't work with the remote so I returned them.
5 people found this helpful
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Onselm Adams
1.0 out of 5 stars Had much Faith but Learned my Lesson
Reviewed in the United States on November 26, 2017
Interfit markets a completely fabricated lie that these units work with Canon cameras. They work with SOME, but Interfit doesn't even have the common dignity to chart out what they in fact support and don't support. They leave so many of us to learn the hard way relying on faith then writing these reviews. It's been a long time since a company has left me utterly disgusted with them. It really sucks when we want to believe in a product only instead the manufacturer turns around and kicks us right in the face.

Other negative notes I wish I knew about prior to buying this light:

- The units battery meter drops one level (1/4) an extremely short time after full charge and initial use. (Attempting to use, anyway.)

- It's mostly made of low grade plastic that is actually peeling in spots around the housing screws. The s-mount too is plastic making it very susceptible to breaking with even the minimal weight of a soft box or other mounted devices. Seems any shock added to this plastic mount would leave it standing no chance.

- The stand mount housing is very shallow, covering only half of the stand spigot leaving all the pressure on the screw instead of the housing itself. This results in unavoidable wobble and increased chance of the screw breaking or slipping.

- The power dial looks and feels like a cheap piece of unfinished aluminum that was ran over by a car.

- The metal portion of the housing though actually painted well, shows a lot of lines, bumps, and rough unfinished undertones under the paint.

- The reflectors feel the weight of a paperclip and go by the way of the power dial listed previously.

- Have 100% of that typical "made in China" look and feel. Not quite a toy ...but not far off ...if that makes sense.

Buy at your own risk but do realize there are in fact reasons why we leave so many bad reviews on this product. If you have any questions I'll do my best to answer them here.
3 people found this helpful
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PAG Phtos & Designs
5.0 out of 5 stars Great flash and completely portable
Reviewed in the United States on October 10, 2017
Verified Purchase
Love it love it love it
One person found this helpful
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D. Shelton
1.0 out of 5 stars Completely Inadequate
Reviewed in the United States on July 18, 2017
Light will not work with Canon 5D Mark IV, TTL even after installing the firmware update on the light and the remote. However, does work with my 5D Mark III but is inconsistent. I have contacted their customer service department only to be ignored and never responded to! Very disappointed. This light is way to fickle and inconsistent to count on it for professional work. I actually would give this "0" Stars but it will not let me do that.
6 people found this helpful
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