I'd recently spent some time myself looking for a tripod that would be reasonably portable (which for me usually means car, or short carry, and very occasionally backpacking for use on a camp/trail). Previously I had owned a Televue Gibraltar tripod (ash) though it was not exactly light it was very stable. I've been through dozens of reviews of all the latest clones, carbon tripods, and also looked at the iOptron stainless steel tripod. The latter folds down to approx the same size as a Manfrotto 055 (which I've owned before) and is not especially heavy or expensive. I was almost ready to order the iOptron then noticed wait times. I'd rather spend time reading/observing than shopping so I ordered a Manfrotto 055 3-section (aluminium), it being the devil I know. Manfrotto make some smaller tripods which are compact and lightweight, often with 4-sections. These are not going to be stable enough for you but the 055 is reasonably sturdy. The possibility to have a tripod for photographic use and a whole range of accessories is a plus. Speaking of accessories, there are some spiked feet options for the 055 (to replace the rubber caps) and I'll be getting a set in due course. Also planning on a mesh basket to affix below so I can add ballast if needed. If you have the budget the Berlebach that would be a good choice. I'm planning an obsy so need to preserve funds for the fixed setup.