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siriusdogstar wrote:
What I am after in this discussion is how to produce "3d" photos; techniques, what to look for, optimal conditions, etc.. If those factors, conditions, and effects can be named and quantified, then 3d production becomes a science, with reproducable results. From this discussion we have the beginnings. (I'm not confident enough yet to attempt a list)
I think it's mostly just all the same "good" photography knowledge.
Good to excellent subject lighting and/or highlighting,
Knowing the sweet spot of the lens's aperture and using that or near that,
Getting the focus perfect,
Choosing an interesting subject with lots of good and interesting texture,
Consider the FG and BG elements with DOF previews,
Consider the color contrast in the scene,
Choosing a camera angle that is interesting yet fairly common to the human head,
Choosing a camera angle that appropriates convergence,
Choosing a camera placement that accentuates subject contour via lines, textures, and shading,
Shoot RAW and process for texture detail - don't use Camera jpegs,
The lens itself may help a little but I highly doubt it - unless it's a really crappy lens,
Use a tripod to eliminate any camera shake,
Use a fast-ish shutter speed if you can,
Avoid situations than can cause bloom, glare, light fogging, or lens reflections,
Practice, practice, practice!
You know, all the things we normally do when taking a photograph. 
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