First of all thank You for Your comments.
metroeloise my macro setup last season was, as shown on photos below:
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I used 2 or 3 extension tubes, Tamron 90/2.8 in lifesize position, and internal flash with homemade diffuser. Almost all of my pictures were taken using following parameters: ISO 400, f10(most often, in good weather conditions) - f16 (in sunny days), 1/60-1/160sec.
Internal flash power +1, spot metering area. Thats all
It is important to put aluminium foil inside diffuser. To achive a good result and to get soft light on the object i used carbonpaper outside front side of the diffuser.
You asked about water...Water is cold, but I don't put it into freezer. If I run out of water, I use water from lake or river. That's cold enough.
Waking up early is a very good idea, because insects are very slow, or they don't even move. It is easy to use then all the blendes, made of white paper, reflective backgrounds- to avoid blackening (I have green, camo, plastic which I put behind the bug), and mirrors- for lighting up all the parts of the insect. It is possible to shoot with use of natural light, and shutter times 1/15 and slower (there must be no wind at all
). Natural light allows You to get images more 3D. For me it's the next level in macrophotography, which I'm still learning
To get really big closeups I use 2 sets of extension tubes (6 rings - total 130mm long), Tamron 90/2.8, Tokina teleconverter 2x, Raynox DCR-250, external flash Metz 48af with a huge diffuser, attached with a synchro cord to a body. This is really good stuff
It's easy to take pictures like that:
This is full frame, there is no crop at all
External flash allows to use apertures from f16-f22
And the final answer...the time...I think that patience is the most important in macrophotography. Sometimes I have great pictures after only few minutes, but this happens so rare, that I guess it happens by accident
Sometimes after 3-5 hours I get nothing sensible.
Average I spend 2-3 hours on taking photos
I think that would be all
Regards