View Full Version here: : Barlowed SR 4mm...(light relief)

02-03-2007, 02:01 AM
'twas a cloudy ish night so I wondered if I might try Barlowing my old SR 4mm and look at Saturn.. Clouds had cleared for a sec. Quick alignment on the GOTO and there was saturn nearly in the field of view of my 25mm GSO (in an f8 4.5" newt). Ha! A few adjustments and we had it. Tracking just bearable (if only it moved in steps less than 1 minute). Pop in the X2 Barlow and 4mm SR and there it was. Contrast a little washed out (I mean at only x450 that might be expected in 4.5":)) Image not as sharpe as with the the 9.7mm meade barlowed, but a nice sized image.Tracking could not quite cope and the cloud rolled in very dark so time to have a quick look at the moon and race in before the rain hit.

Enjoyable momment and not very serious but i was suprised i could see anything!


02-03-2007, 05:48 AM
Nothing wrong with pushing the limits every now and then :)

The seeing has been quite good lately (at least average) due to the lack of jetstream, so it's as good a time as any to push the magnification right up!