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Product Code: 1584147
Interfit S1a TTL and HSS Flash
We no longer sell this product and will not be receiving any new stock. Check below for availability of second-hand units.
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|---|---|
| New | Discontinued - we can no longer source new stock of this product |
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The Interfit S1a is an affordable 500Ws, AC powered monolight with high speed sync and TTL for Canon and Nikon cameras. This unit is designed primarily for use in studio or for photographers who have already invested in external power packs with sine wave inverters. Slightly smaller than the S1, the S1a works seamlessly with its battery-powered counterpart at a 40% lower price point.
The Interfit S1a HSS TTL Flash (INTS1a), AC only includes:
- 1 - S1a Flash Head
- 1 - 18cm (7") Standard Reflector - with Bowens S-Mount
- 1 - 13' (4m) Power Cable
- 1 - Micro-USB Cable
- 1 - Sync Cable
Shooting Modes:
The S1 has three different shooting modes, each to serve a different purpose and shooting style. Interfit's new S1 Remote for Canon or Nikon enables photographers to take advantage of their camera's TTL system just like they would with a speedlight. This automated light output uses the S1's entire 7 stop power range (500Ws - 7.8Ws), is automatically calculated in 1/10th stop increments, and allows for +/- 3 stops of exposure compensation, manually adjustable within 1/3rd of a stop. Having an automated flash exposure allows the photographer to quickly and easily achieve their vision. This automatic mode is ideal for environments with constantly changing ambient light, and shoots that require you to quickly change your setups or location.
For those that prefer to have complete control over their light and have time for fine-tuned adjustments, the S1 can be used in the traditional manual mode. Manual shooting mode also utilizes the entire 7 stop power range, controllable in 1/10th stop increments. While in manual mode, users gain access to the S1's High Speed Sync mode, reaching shutter speeds up to 1/8000th of a second. High Speed Sync mode utilizes the top 4 stops in the power range (500Ws - 62.5Ws) and is manually adjustable in 1/3rd stop increments.
IGBT:
Utilising IGBT technology, the S1 is able to offer short flash durations while maintaining color accuracy throughout the power range. Flash duration ranges from 1/1,000 at full power, down to 1/9,000 at minimum power. By shortening the flash durations, we were also able to improve color accuracy, giving the S1 a consistent 5700k (+/-100k) color temperature throughout the entire power range.
S1 TTL Remote:
The S1's TTL remotes give the users direct control over any S1 light in any shooting mode from the camera position. This camera-mounted transmitter is available for both Canon and Nikon camera's and supports E-TTL ll and i-TTL protocol, respectively. Having three individual groups gives users the freedom to control lights individually to create dynamic lighting ratios with a working range of up to 100m (300').
Interfit S1a - AC-powered flash:
The S1a has all of the same features as the S1 sans battery. This unit is designed primarily for use in studio or for photographers who have already invested in external power packs with sine wave inverters. Slightly smaller than the S1, the S1a works seamlessly with its battery-powered counterpart at a 40% lower price point.
Additional Features:
We made durability our priority for our portable flash units, so we built the S1 and the S1a within a strong and lightweight aluminum body rather than plastic. We also include a frosted glass diffuser dome to protect the flash tube. Both the S1 and S1a feature the widely-used Bowens S-Type modifier mount, giving users hundreds of high quality and affordable modifier options to choose from including Interfit's line of softboxes, reflectors, grids, beauty dishes and more. A mini-USB cable is included with every light, allowing for firmware updates when new cameras are released.
S1a Specifications:
- 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: 2 sec.
- Flash Duration: 1/1,000 - 1/9,000 (max-min power)
- Colour 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: 110 VAC or 220VAC
- Fan Cooled: Yes
- Auto Dump: Yes
- Temperature Regulation: Yes
- Dimensions (Length x Diameter) Inc. glass dome and handle: 32 x 13cm (12.6 x 5.1")
- Weight Inc. battery (S1 only): 2.25kg (4.9lb)
Product Specification
| Auto Dump | Yes |
| Colour Temperature [k] | 5700k +/-100k |
| Flash Duration | 1/1000s (Max Power) 1/9000s (Min Power) |
| Flash Power Range | 7 Stops 7.8ws to 500ws |
| Guide Number | 48.7 |
| Modelling Lamp | 10w LED |
| Power Source | 110 - 220v AC |
| Power [Ws|Joules] | 500 |
| Recycling Time | 2 secs |
| Size [cm] | 32 x 13 x 13 |
| Weight [kg] | 2.25 |
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Your flexible credit options available
Interest Bearing
with a choice of repayment plans over 12, 24 or 36 months 13.9% APR (representative)Buy now pay later
36 month loan with a six month deferral period, 18.9% APR (representative)Interest Bearing Finance
This option comprises term loan with a choice of repayment plans over:
- 12 months
- 24 months
- 36 months
The balance of the finance agreement is payable directly to Novuna Consumer Finance in equal monthly instalments by monthly direct debit. The direct debit payments will commence at the end of the first month following receipt of your goods. The interest rate charged is 13.9% APR. Late payment and early repayment penalties apply; full details of these will be provided in the loan agreement pack.
For customers based in the Channel Island, please call us to apply for finance
| 12 Months | 24 Months | 36 Months | |
|---|---|---|---|
| Cash price | £399.00 | £399.00 | £399.00 |
| Deposit | £0.00 | £0.00 | £0.00 |
| Loan Amount | £399.00 | £399.00 | £399.00 |
| Monthly Instalment | 11 x £35.65 | 23 x £18.98 | 35 x £13.46 |
| Final Instalment | £35.65 | £18.98 | £13.46 |
| Total Amount Repayable | £427.80 | £455.52 | £484.56 |
| Representative | 13.9% APR | 13.9% APR | 13.9% APR |
Buy now pay later
The Buy Now Pay Later option comprises a 36 month loan following a six month deferral period.
During the six-month deferral period, it is possible to pay off the loan, either by way of a lump sum or in smaller amounts. If the loan is partially repaid within six months, the remaining interest will be adjusted to reflect the new balance. If the loan is fully repaid within the six-month deferral period, then no interest is payable, however, a £29 early settlement fee is payable in respect of repayments within these six months.
Following the six-month deferral period, Novuna Personal Finance will initiate a monthly direct debit payment for the remaining duration of the loan. Interest will be charged at a rate of 18.9% APR on outstanding balances (backdated to the first date of the loan). Novuna Personal Finance will send a reminder letter approximately one month before the six-month deferral period is due to elapse.
For customers based in the Channel Island, please call us to apply for finance
| Balance settled in full within the six month deferral period | Balance NOT settled in full within the six month deferral period | |
|---|---|---|
| Cash price | £300 | £300 |
| Deposit | £0 | £0 |
| Loan Amount | £300 | £300 |
| Settlement fee | £29 | £0 |
| Settlement payment | £329 | - |
| Monthly Instalment | - | 36 x £11.57 |
| Total Amount Repayable | £329 | £416.52 |
| Representative | 18.9% APR | 18.9% APR |