This is exactly what I have now the MicroPro II purchased it comes wonderfully well in the corners of the optical viewfinder. The "brush side" is like the big brother; there are slightly shorter brush but otherwise equally suitable.
Tip: first remove the dust with the brush, then polish with the "felt" ;-)
Scratched I have neither the small nor the great something. Both are relatively easy and well transportable.
But also the MicroPro is not intended for a mirror / sensor cleaning: The brushes are combined here with a graphite-like dust and you rangeht to the sensor best only with "fresh" material.
Ask? With pleasure, simply comment.
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