Ikelite 2172 M46 Warming Diffuser for Vega
In stock — ships from Irvine, CA
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Ikelite 2172 M46 Warming Diffuser for Vega is backordered and will ship as soon as it is back in stock.
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Product Information
The Ikelite 2172 M46 Warming Diffuser for Vega is a screw-on beam modifier built for the Ikelite Vega Video + Photo Light and any other dive light with an M46 (46mm) front thread, reducing color temperature by roughly 500K and spreading the beam to about 100 degrees of coverage.
Who it is for
This diffuser suits underwater photographers and videographers who shoot with the Vega Video + Photo Light and want warmer, more natural skin tones and a wider spread of light. It is a simple threaded accessory that screws onto the front of any light with an M46 (46mm) thread.
Key details
- Reduces the beam's color temperature by approximately 500K for a warmer, more natural underwater image.
- Widens beam coverage to approximately 100 degrees when used with the Vega light.
- Reduces light output by approximately one f-stop once installed, a trade-off for the wider, warmer beam.
Compatibility and sizing
The diffuser threads directly onto the front of the Ikelite Vega Video + Photo Light and will also fit other lights that share the same M46 (46mm) front thread diameter. Confirm your light's front thread size before ordering if you are not using it on the Vega.
DiveCatalog.com is an authorized Ikelite dealer and a dive shop in Irvine, California, serving divers since 2003. Call or chat with us at 888-701-4017 if you need help confirming this diffuser's fit on your specific light.
- Threaded M46 mount: Screws onto the front of the Ikelite Vega Video + Photo Light and any other light with an M46 (46mm) front thread.
- Beam warming: Reduces the light's color temperature by approximately 500K for a warmer overall image.
- Natural skin tones: Warmer color temperature produces more natural-looking skin tones in underwater video and photos.
- Wider beam spread: Diffuses the beam to an angle of coverage of approximately 100 degrees when used with the Vega.
- Light output trade-off: Reduces light output by approximately one f-stop once the diffuser is installed.
| Brand | Ikelite |
| Model | 2172 M46 Warming Diffuser for Vega |
| Thread size | M46 (46mm) |
| Color temperature reduction | Approximately 500K |
| Angle of coverage | Approximately 100 degrees (with Vega) |
| Light output change | Approximately 1 f-stop reduction |
| Primary compatibility | Ikelite Vega Video + Photo Light |
| Other compatibility | Any light with M46 (46mm) front thread |
| Part number (MPN) | 2172 |
| SKU | 2172 |
| Barcode (UPC) | 883711048833 |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Does the M46 Warming Diffuser fit lights other than the Ikelite Vega?
Yes, it is also made for other lights with an M46 (46mm) front thread, not only the Vega Video + Photo Light. Measure your light's front thread diameter before ordering to confirm it matches M46 so the diffuser threads on correctly.
How much light output do I lose with this diffuser installed?
Expect about one f-stop of light loss when the diffuser is threaded on. This light loss comes with the trade-off of a warmer, approximately 500K reduced color temperature and a wider beam spread of about 100 degrees.
What does the diffuser actually change about the beam?
It warms the beam's color temperature by approximately 500K for more natural underwater skin tones and widens the angle of coverage to about 100 degrees when paired with the Vega light, at the cost of roughly one f-stop of output.
What thread size do I need to use this diffuser?
The diffuser requires an M46 (46mm) front thread on the light. It is designed for the Ikelite Vega Video + Photo Light but will fit any other light sharing that same thread size.












