Biggest home made, or otherwise dob?

[Manok101]

I just saw that Orion is offering 50" truss dobs for a mere 130,000$ US, and that got me wondering is there any bigger Dobs either home made or otherwise? Not that I'd likely be able to afford, or even have a dark enough site to use it, only curiosity is prompting this question. Views must be amazing.

[swlloyd3]

Not sure about commercial, I was looking into mirror making recently and Have read quite abit around the internet.

I also saw the Orion 50" and believe its the biggest commercial you could buy!

Galvoptics do mirror blanks up to 750mm I believe roughly 29" and there just under £300 without any extra's.

I believe this is a good candidate for biggest current portable project for an amateur telescope: A MASSIVE 43.3"!!!!!

Design and Construction of the 110 cm Cruxis Telescope

Ste.

[Manok101]

I've also noticed that some mirrors have the many cells, and was wondering if that would affect the viewing any?

[LukeSkywatcher]

The largest scopes i have seen online for sale are the Obsession Dobs. The largest is 25" and sells for about $14,000.

Obsession Telescopes - Large aperture Dobsonian telescopes

Bit of a bargain really.................if you have a step ladder.

[LukeSkywatcher]

I've also noticed that some mirrors have the many cells, and was wondering if that would affect the viewing any?

Apparently it improves the views.