[glend (Glen)]

If you look at their respective websites you will see they are near identical, both actually made by GSO. All Bintel branded newts are made by GSO. Andrews versions
are setup for imaging so they will easily handle and allow focus with any camera DSLR or other. It becomes a choice of f4 or f5. I have owned a GSO 8"f5 and its not very heavy at all. Sure f4s might be a little lighter but i think f5 offers a more flexible scope with a focal length of 1000mm verse 800mm in the f4. The 1000mm focal length is still wide enough to be useful on nebulas, but allows you to get in closer on targets like the Grus Quartet. Andrews is usually a little cheaper than Bintel on these GSO scopes but with Andrews your getting an unopened box right out of the bonded warehouse. You might want to check with Bintel about what they do with theirs, ie do they open the box and check the collimation, etc. Bintel pride themselves on full service, which may justify the price premium, but i have never had a bad GSO from Andrews. Mirrors are great in both. If you buy an imaging newt i suggest you buy a 35mm 2" extension tube to put in the focuser so you can reach focus with any eye piece if you use it visually.