The Aputure CF4 Fresnel is a compact four-inch focusing modifier with a Mini ProLock Mount, designed specifically for the STORM 80c. It converts the compact point-source fixture into a brighter adjustable hard light with a 15 to 40 degree beam range for interviews, location work, tabletop sets, accents, and small-space production.

Product Overview

Aputure specifies up to 5.5 times output intensification with an even beam and smooth centre-to-edge falloff. On a STORM 80c at full intensity and 5600K, the official photometric table lists 36,000 lux at one metre in the 15-degree spot position and 12,500 lux at one metre in the 40-degree flood position. The dual-expanding focus system reduces the stored size while maintaining the adjustable beam. The CF4 locks directly into the STORM 80c Mini ProLock Mount. It is not the CF12 used by larger STORM 1000c and 1200x fixtures, and it does not adapt full-size Bowens accessories on its own.

Key Features

15 to 40 Degree Focus Range

Move between a concentrated 15-degree spot and a broader 40-degree flood to adjust beam size and intensity without changing the modifier.

Up to 5.5x Output Intensification

Aputure rates the CF4 for up to 5.5 times intensification, including 36,000 lux at one metre, 5600K, and the 15-degree spot setting on STORM 80c.

Mini ProLock Mount

The compact Fresnel inserts into the STORM 80c Mini ProLock interface and locks with the fixture's ProLock handle for a secure optical connection.

How It Compares

Choose the CF4 when the STORM 80c needs an adjustable, punchy hard beam. Choose the included reflector for a simpler fixed beam, the CF4 Barn Doors for spill control after the Fresnel is installed, a Quick Dome or Light Dome for soft output, or the CF12 for compatible larger STORM heads.

Compatible Accessories and Related Gear

Aputure STORM 80c and Aputure CF4 Barn Doors. Use the CF4 with the STORM 80c Mini ProLock Mount. Do not assume compatibility with CF12 fixtures, full-size Bowens heads, or other Aputure lights without the official compatibility listing.

Who Is This For?

This modifier is for gaffers, cinematographers, owner-operators, documentary teams, small studios, and rental kits that need more throw and an adjustable hard-light beam from the compact STORM 80c.

Who Should Choose Something Else?

Choose a softbox or lantern when broad soft light is the goal, a projection attachment for precise shutters or gobos, or a different Fresnel size when the fixture does not use the STORM 80c Mini ProLock interface.

In the Box

  • Aputure CF4 Fresnel
  • CF4 Fresnel carrying case

Specifications

  • Compatibility: Aputure STORM 80c
  • Mount: Mini ProLock
  • Lens diameter: 4 inches
  • Beam angle: 15 degree spot to 40 degree flood
  • Maximum intensification: up to 5.5x
  • Output at 5600K and 1m: 36,000 lux spot / 12,500 lux flood
  • Dimensions: 14.0 x 8.7cm / 5.5 x 3.4in
  • Net weight: 0.53kg / 1.17lb

FAQ

Which light is the Aputure CF4 Fresnel made for?
The CF4 is designed specifically for the Aputure STORM 80c and locks directly into the fixture's compact Mini ProLock Mount.

What beam-angle range does the CF4 provide?
The modifier adjusts from a 15-degree spot to a 40-degree flood, letting the operator change beam size and intensity.

How much output can the CF4 add to a STORM 80c?
Aputure rates the modifier for up to 5.5 times intensification and lists 36,000 lux at one metre, 5600K, in the 15-degree spot position.

Are CF4 Barn Doors included with the Fresnel?
The official CF4 Fresnel box list includes the Fresnel and carrying case. CF4 Barn Doors are a separate accessory.

Where can I buy the Aputure CF4 Fresnel in Canada?
Filmgear Canada supplies the CF4 Fresnel with Canada-wide shipping and Vancouver-based help for STORM 80c modifier selection.

Where to Buy in Canada

Buy Aputure CF4 Fresnel for STORM 80c from Filmgear Canada with Canada-wide shipping and Vancouver-based support. Confirm the exact mount, scale, modifier interface, and surrounding camera or lighting package before ordering.

15 to 40 Degree Focus Range: Move between a concentrated 15-degree spot and a broader 40-degree flood to adjust beam size and intensity without changing the modifier.

Up to 5.5x Output Intensification: Aputure rates the CF4 for up to 5.5 times intensification, including 36,000 lux at one metre, 5600K, and the 15-degree spot setting on STORM 80c.

Mini ProLock Mount: The compact Fresnel inserts into the STORM 80c Mini ProLock interface and locks with the fixture's ProLock handle for a secure optical connection.
1 x Aputure CF4 Fresnel

1 x CF4 Fresnel carrying case

We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. For opened or used items, a minimum 15% restocking fee may apply depending on the item condition.

To start a return, you can contact us at info@filmgearcanada.com. If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return-related questions at info@filmgearcanada.com.

Important Notice for Special Order Items

Certain professional and project-based products are supplied on a Special Order basis and are subject to different return conditions. Please review the “Special Order Items” section below before placing your order.

Damages and Issues

Please inspect your order upon reception and contact us immediately if the item is defective, damaged, or if you receive the wrong item, so that we can evaluate the issue and make it right.

For Special Order items, damage or defect claims must be reported immediately upon delivery and will be handled in accordance with the manufacturer’s warranty terms.

Exceptions / Non-returnable Items

Special Order Items (Final Sale)
Certain professional, project-based products are supplied on a Special Order basis and are not regularly stocked. Special Order items are final sale and cannot be returned, exchanged, or refunded once the order has been confirmed with the manufacturer.

These items are ordered specifically for individual projects and may include, but are not limited to:

  • Professional wireless communication systems
  • Large-scale lighting equipment
  • Studio carts and grip equipment
  • Cine lenses and special production gear

Please ensure compatibility and project requirements before placing your order. If you have any questions regarding lead time or suitability, we strongly recommend contacting us prior to purchase.

In addition, we do not accept returns for sale items, gift cards, perishable goods, hazardous materials, flammable liquids, gases, or personal care products.

Exchanges

The fastest way to ensure you get what you want is to return the item you have. Once the return is accepted, you may place a new order for the desired item.

Refunds

We will notify you once we’ve received and inspected your return and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please note that it may take some time for your bank or credit card company to process and post the refund.

FAQ

Which light is the Aputure CF4 Fresnel made for?

The CF4 is designed specifically for the Aputure STORM 80c and locks directly into the fixture's compact Mini ProLock Mount.

What beam-angle range does the CF4 provide?

The modifier adjusts from a 15-degree spot to a 40-degree flood, letting the operator change beam size and intensity.

How much output can the CF4 add to a STORM 80c?

Aputure rates the modifier for up to 5.5 times intensification and lists 36,000 lux at one metre, 5600K, in the 15-degree spot position.

Are CF4 Barn Doors included with the Fresnel?

The official CF4 Fresnel box list includes the Fresnel and carrying case. CF4 Barn Doors are a separate accessory.

Where can I buy the Aputure CF4 Fresnel in Canada?

Filmgear Canada supplies the CF4 Fresnel with Canada-wide shipping and Vancouver-based help for STORM 80c modifier selection.