A few stacked images

Kev, interesting discussion above and thanks for sharing your techniques to obtain jet-black backgrounds via software. What are your thoughts on using a (good quality) black velvet backdrop  instead of getting black backgrounds using software? For location shooting of flowers velvet is probably not too practical, but in a studio setting I suspect it could be as good as using software - or is it?

By the way, your photos really are class act.  I often return to your website just to admire your shots and to read your blogs.

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Ken