[videoguy]

Jezza

One of the loyal IIS members forwarded me the link to your thread and while I dislike getting into supplier debates on such things, I'm sorry to say that such feeback makes me feel outraged.
Mike..I agree and yes John, if the barlow is not placed in the correrct order, image amplification can seem rediculous but, this sort of feedback from a supplier is exactly the sort of cr*p (yeah ok..the word isn't that well disguised) that really annoys me. I can only imagine a handful of retailers that would spout such a line.

There are junk versions (supplied with 60mm refractors), medium to good low cost barlows, and great barlows with APO designs. But, none are made specifically for a MAK, Newt or refractor (in quality terms I should say) and if you've been told so, then your dealer has fed you a line.

Barlows are designed to yield increased magnifications for a specific eyepiece focal length in the order or 1.5, 2 or 3 X power. Indeed, the seeing will determine whether or not it can be used successfully at a given focal length, aperture and of course the overall quality of the optics (both the barlow and scope).

That's great news you have had the item replaced and noted a major improvement.