Hi one
I assume you are using the 8inch f5 scope where we are looking at a focal length of 1000mm. I suspect that you are pushing the mag too high and under poor conditions?
1000mm/7mm = x143. The x2.5 will give x357 which I think is too much and this will result in a very poor, soft image.
Even 1000mm/10mm = x100 plus the x2.5 PowerMate will give x250 and that too requires good seeing.
The Moon a couple of days old is low in the sky which generally results in poor seeing. Jupiter is also quite low and probably not the best candidate for testing the PowerMate.
It is not nice suspecting that your hard earned cash has gone on a poor quality purchase, so I feel for you. However, don’t give up hope just yet. Wait for a higher altitude Moon and better seeing and maybe use the 14mm then the 10mm to compare the results. Also, make sure your scope is well collimated as these "faster" scopes are more sensitive to mis-collimation.
Cheers
Dennis
|