Max useful power?

[scopenoob]

I have a 150mm dob (yay!) and what's the most useful max magifcation? Like without distortions or burryness. Focal length is 1200mm if that helps in any way

 

[jcdenton]

For reflectors, like yours, I believe it is 50x/inch. So since your scope is 6", the highest useful power would be 300x. You'll only be able to go that high if the weather conditions allow for it. <div class="Discussion_UserSignature"> </div>

 

[tfwthom]

Right answer<br /><br />50X per inch is under pristine conditions. <br /><br />Only top quality refractors get better I've had my FS128 on the Moon at 1000X under pristine conditions. Thats how ya get up close and personal with a crater. <div class="Discussion_UserSignature"> <font size="1" color="#3366ff">www.siriuslookers.org</font> </div>

 

[scopenoob]

30X under normal nights right?