Interfit’s engineers have been hard at work to bring S1 users a new firmware update that bundles together two exciting features! An update will need to run on each S1 flash head and remote to ensure compatibility.
Adds compatibility with the new Canon 5D mark 4
S1 users who have purchased the new Canon 5D mark 4 will now have complete access to all S1 features.
Extends the flash power range to 9 stops
This firmware update adds two additional stops to the bottom of the power range, giving the S1 a total range of 9 stops. Prior to this, the S1 had a range of only 7 stops. What does this mean? This means that you can power your S1 down two stops further than you could before; all the way down to 1.95Ws! Maximum flash power does not change. It is still 500Ws at full power Why is this added low-end power range important? 500Ws is a lot of flash power! But there are many instances when you really only need a small amount of light. Shooting with fast lenses for a super shallow depth of field, or bringing your light extremely close to your subject for dramatic fall-off both require minimal flash power.
This update will change the numbering system used to represent the power output. On previous firmware versions, the flash output was measured on a scale of 8.0 – 2.0 (500Ws – 7.8Ws), adjustable within 0.1 stops. For this new version of the firmware, the flash output is measured on a scale of 10.0 – 2.0 (500Ws – 1.95Ws), adjustable within o.1 stops. The table below shows how these numbers relate.
|Updated Power Range with Firmware Version 2.2||Corresponding Power Range with Previous Firmware Versions||Watt/seconds||Flash power in fractions|
Individual firmware updates are needed for flash heads and remotes. Click here to go to the S1 Firmware Updates Page