am doing quite alot of testing and still looking for time to share the end result but I feel it is important to solve the lighting for my SIGMA 150mm F2.8 which is a good range for macro but due to the distance to the object, flash use tent to be harsh so far and it only use for fill flash/Natural Light macro so far.
I make use one of my test with MP-E65 , a UV + light Tent which mentioned before @ 2010 Jul new lighting testing
I will get few good test and share the result by end of this week ...
and I just got my SIGMA180 and hope I have some time to give it a try
so for test 1 - 2 Aug 2010
i. SIGMA 150 F2.8
ii. Canon 5dm2
iii. Kenko ET 36mm & 1.4x TC
iv. UV Diffuser (picture below show how U.. but V still a hidden secret)
v. Light Tent with Vellum paper (previously use for MP-E65)
UPDATE .... I am trying to drawing what I going to achieve
not a very good diagram, but it show I trying to avoid direct my flash light toward the object and why I have the long "U" diffuser is to provide little light to the background.
pdate result from this setup @ http://liewwk-macro.blogspot.com/2010/08/how-i-shoot-macro-lighting-result-for.html