[bojan]

I have it (well, mine is MTO-1100A,, very similar and from the same manufacturer, see here).
It is good, but not excellent.... good price/performance ratio, this is for sure.

http://www.iceinspace.com.au/forum/s...ad.php?t=35180
http://www.iceinspace.com.au/forum/s...ad.php?t=36606
http://whitemouse.ru/photo/hardware/mto1000.wmb
http://www.zenitcamera.com/archive/lenses/mto-1000.html

Some pictures taken with this lens:
http://www.iceinspace.com.au/forum/s...&highlight=MTO

You may also wish to google for "russentonne"..the website below is especially useful.
http://www.strickling.net/russentonne.htm