Saturn

In this photograph there is a very ordinary Barlow lens; this photo is old, from '22.
And now I use the Explore Scientific 2x and 3x tele-extender.

How does it differ from the LB?

There is no glare, and most importantly, it does not matter at what distance from the eyepiece it is located, the scale is the same anyway, plus sharpness across the entire field. To put it simply, it is made specifically for astrophotography. And yes, it is four-lens.

Good thing, thanks