Thanks.
I was a bit afraid that I had spend my money on a 'dud' personal theory that the 5.5 crop would work for macros, but ended up to be real satisfied with what the camera can do.
I tried the same shot with the F100/2.8 macro on my K5, and the spider only fills up about 25% of the frame.
Better DOF from the Q too for the same FOV.
There are a few quirks working at such extreme focal lengths (its an equivalent 550mm f2.8 macro lens).
But its never easy at such magnifications of any type of setup (ie. FF, APS-C, etc).
got your pentax Q already? ;p
what flash setup did you use for the spider?
Yup! Finally did it after talking about it for so long.
Its also strangely the only camera that I could not forget about.
Unfortunately flash sync is an abysmal 1/15 with any 3rd party adapter, so I had to try out at home using 2 table lamps.
It was late when I got to play with the setup, so I went downstairs to get a 'victim' to test on.
Now that I know that the system works, I will go ahead to purchase a video type LED lamp for the purpose. (do you have any recommendation for something that can still give 1/200 f8, ISO no more than 400? )