TAL scopes are quite good, although some points, the Mounts arn't that good, I get considerable dancing times with the 4" on a TAL GEM. As for the optics if you can fit them with better eyepieces than the Kellner that comes with it, then it would be a nice scope. I observed M104 from the inner suburbs of Adelaide with the TAL, mind you though a 4" in those conditions it was faint but THERE. I also observed Comet Hyakutake when it was 8 days after it was discovered, it was only a mere faint blob. Not sure what TAL you are thinking of but the mirrors in the 4" were top class very nice. I would think the 250K and 200K would be the same sort of perfection, Although I would update the mount to something a little beefier. Oh the extruded Aluminium tubes are a little on the weighty side, (2.5mm thickness on my 4")
Otherwise nice scope but I would look for an alternative, there would be better optically in theyre price range somewhere. (TAL-1 $695 Back when I got mine)
hope this helps a little
|