[JA]

Originally Posted by gregbradley

I am looking to get a relatively small and light refractor to complement widefield imaging.

Weight around 5-6kgs or less.

.....

Any thoughts or suggestions of other scopes?

Greg.

Hi Greg,

If photographic lenses are not out of the question for you then, around the focal length range you've indicated (~500mm in your examples) there are a few quality (used) manual lenses you could consider, which:
1. fall within your weight limit,
2. include (by design) a flatterner and
3. are faster (or could be used stopped down for even better IQ).

Unless of course, telescope it must be. In which case: Back to normal programming -

Best
JA