Canon Ray Flash Ring Flash Adapter - Camera &
Flashgun Compatibility

The unique RING FLASH ADAPTER by RAY FLASH has been developed by a professional photographer from the Czech Republic. Designed to be as light and as portable as possible, there are no electronics, no flashtubes and no cumbersome cables! It uses a clever system of acrylic light channels and reflectors to distribute the light emitted from the flash unit evenly around the large diameter of the ringflash adapter. This creates the same lighting effect normally only available from expensive and heavy ringflash units made by studio flash equipment manufacturers, making it perfect for portrait and wedding photography.

The Ringflash Adapter is made to fit the 580EX MKI & 580EX MKII Canon Speed Lights and due to it's large inner diameter the Ringflash Adapter will accept almost all lenses from Canon leaving the TTL function and colour temperature un-affected. For Nikon SLR and Nikon Speed Light Compatability click here.

Exposure control: when using Canon SLR cameras (or their derivatives) all TTL functions are un affected and operate normally, as well as in manual mode.

Light output: The Ringflash Adapter is very efficient and the loss of light is surprisingly low! See the table below.

POWER OUTPUT GUIDE for RAC models

ISO	Flash Power	Distance	f/stop Canon 580EX II
100	1/1	0.6m/2ft	22.6
100	1/1	1.2m/4ft	11.1
100	1/1	1.8m/6ft	8.0
100	1/1	2.4m/8ft	7.2
100	1/1	3.1m/10ft	4.5

 

How to fit the Rayflash Adapter:

The Ringflash Adapter is mounted to the front of a portable flash unit, for example Canon 580EX MK I or 580EX MK II, and it is small and light weight enough to allow complete mobility!

Line up the flash unit with the rear receptacle of The Ringflash Adapter		Push the flash unit in as far as it will go		Turn the pressure plate at the top of The Ringflash Adapter clockwise to lock

This model (RAN & RAC) is a later development to fit the Nikon SB800, Canon 580EX & 580 EX MKII. It is slightly different in size and weight (see spec below) and one stop more powerful than the original SIRC.

Model Range:
Code	Ringflash Adapter to fit	Our Price £
RAC160-2	CANON 580EX MKII & 550D, 450D, 500D, 400D, 350D, 1000D	149
RAC170-2	CANON 580EX MKII & 5D, 60D, 50D, 40D, 30D, 20D, 10D	149
RAC175-2	CANON 580EX & 5D MKII, 7D, 1D series	149
For use with Canon 580EX MKI model:  use any of the above listed RAC models with an adapter wedge, which is available FOC!
Retail prices are in GBP Sterling

Technical specification:
Code	Outer Diameter	Inner Diameter	Centre ringflash to centre flash unit	Weight
RAC160-2	175	103	160	462
RAC170-2	175	103	170	478
RAC175-2	175	103	175	495
All measurements are in millimetres & grams

Using flash units other than Canon 580EX & 580EX MKII

Feedback from existing customers shows that it is possible to use the RA with various other types of flash units.
>> Click here for further details in this PDF.

 Guide to the model range and suitability of different camera models:

Canon make a large range of SLR camera models and they have different body heights, which affects the difference between the centre of the bayonet mount (optical axis for the lens) and the hot-shoe for the flash gun. We list the Canon camera models with the Ring Flash Adapter that gives the best position for the lens, i.e. The  lens is in the centre of the Ring Flash Adapter or as near as possible to the centre.  But actually you can use almost all camera/lens combination with most of the Canon SLR model range! In fact people often buy a different Ray Flash model to that recommended,  because the model they want is not available yet and they don't want to wait OR a photographer might have several different bodies or he/she may be planning to buy a different body or flash gun soon. 

 

At the moment there are no plans to introduce a RAY FLASH Adapter for other types & makes of flash units.

 

Radiation diagram

 

Measurements