Ring Flash for Macro Work

[Dr_Jimmy]

Does Any One know where I can obtain a reasonably priced ring flash from for A Sigma 105mm Macro Lens, or does anyone have an old second hand one I can convert, do do the job with, I have searched the usual places and they are still a little of of my Price Range, for what might be termed occasional use.

I would mainly require it for work purposes etc, I did start to build a Ring Light using White LED's but I did not use enough LED's and the Effect was poor, and the color cast was very off puttting.

I always shoot in RAW and struggled to Improve the image, if anything I made the image even more cold.

[nightshade]

Why not use two smaller flashes? you do not say what camera you are using
but most will fire an own brand which could be used with an aftermarket unit
as long (as it ignores preflash pulses) I believe Metz do one but am a bit hazy
about the details
I have bought a commercial flash bracket but used a plywood boomerang for
years with twin flashguns secured with rubber bands, totally adequate for
occasional use
Sigma EM-140 DG MACRO RING FLASH review cheap prices EM-140 DG MACRO RING FLASH Sigma best buy discount online uk shop

[Jon]

Originally Posted by Dr_Jimmy

Does Any One know where I can obtain a reasonably priced ring flash from for A Sigma 105mm Macro Lens, or does anyone have an old second hand one I can convert, do do the job with, I have searched the usual places and they are still a little of of my Price Range, for what might be termed occasional use.

I would mainly require it for work purposes etc, I did start to build a Ring Light using White LED's but I did not use enough LED's and the Effect was poor, and the color cast was very off puttting.

I always shoot in RAW and struggled to Improve the image, if anything I made the image even more cold.

When I tried using a canon ringflash on my 20D I discovered it was not compatible, the canon twinflash is the business - but very much more expensive. My guess would be SIgma would probably produce one that would be dedicated to digital cameras. Meanwhile a very much cheaper and from my viewpoint satisfactory alternative is the Omnibounce - about £15 I use it for most of my macro work. I fit it to a Vivitar or to a Metz gun.
Jon

[glsammy]

Originally Posted by Jon

When I tried using a canon ringflash on my 20D I discovered it was not compatible, the canon twinflash is the business - but very much more expensive. My guess would be SIgma would probably produce one that would be dedicated to digital cameras. Meanwhile a very much cheaper and from my viewpoint satisfactory alternative is the Omnibounce - about £15 I use it for most of my macro work. I fit it to a Vivitar or to a Metz gun.
Jon

I have a Sigma Ring flash, the EM140DG. It's a fine piece of kit, and it works fine with the 20D. Not exactly cheap though, at about £239 from Warehouse express. I'm still getting used to it, some of my recent macro shots were taken using it. One big advantage, although I admit not one that will be used very often, is that you can still get good spread of flash even when extremely close to the subject, such as when I use the extension tubes with the 150mm macro.