SB-600 & Raynox DCR-250

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bildo

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Bill
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I'm a complete newbie to flash, I've tried having a read-up and like to think I've grasped the basics. I've taken some decent portrait shots but I cannot for the life of me get macro photography to work for me.

I've done the Pringles tube DIY as a diffuser, I've got a bit of bog roll in the end for now as it was all I had (perhaps this is too thick/thin? :shrug:)

When I'm getting my macro photos no matter what setting I have the flash on, (I've tried TTL and every manual setting) I still can't get anything other than a black background.

Am I missing out on something obvious? I've tried using both a 35mm and 70-300mm lens, not that I reckon this would have an effect. I've been trying to use smaller f/stops to get a larger DOF, as the DCR-250 is fairly restrictive with wider apertures.

Any help and advice is greatly appreciated, mainly photographing bugs and flowers, thanks!
 
Flash falls off very rapidly with distance, approximately following the inverse square law - double the distance equals one quarter the brightness. Therefore, with flash at close range, subjects just a little further away quickly become under-exposed.

The answer is to keep everything at the same distance from the flash.
 
Apologies for not getting back to you on this.

That definitely makes sense, not always easy to do! Some of the guys on here really seem to have this kind of thing perfected. I can't help but think my Pringles diffuser isn't doing me any favours!
 
I am having similar issues with my sb400 and stofen diffuser. I could really do with some pointers about how to use flash properly with the raynox.

Any good reading material ?
 
I've been using a off camera flash, triggered by popup, held by a assistant or tripod, remmber stofens don't help unless you have something to bounce off.

I still get black or dark backgrounds, but I guess you could use other flashes for that
 
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