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Tube Rings for William-Optics tubed Lomo triplet


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Hi,

I assumed you mean the 80 mm scope? Fantastic scope, not far off a Tak if you believe all the reports, you will be pleased. I love mine.

I have one and both the standard Skywatcher 90 mm rings and the more substantial William Optics 90 mm rings fit mine. You might need to remove the attached shoe to use rings and dovetail but it's only held on with one bolt.

Sometimes the rings are called 90 mm rings and sometimes they are called 80 mm tube rings which can be a bit confusing.

Cheers

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I've never looked through a Tak, maybe one day. I do have an Esprit 80 Triplet and the Lomo is better visually. The stars are sharper, no colour fringing at all even when de-focused and the background is jet black. It's a joy to look through.

On mine if you study the lens in detail then it's far from perfect, with the right inspection kit you can see a number of faint, curved scratches / polishing marks in the glass, reading about these lenses I think they are genuinely hand finished to get a perfect figure on the glass and hence some hand polishing marks remain in the lens.

You can't see these polishing marks normally but I spent 10 years developing and inspecting transparent materials for specialist applications in my job so I'm very picky about polishing standards. Despite these very faint polishing lines my Lomo produces a perfect image in my view.

The glass on my Esprit (and other Skywatcher scopes) is perfectly polished which I guess is indicative of the mass market polishing techniques used to produce these lenses.

The Lomo is a keeper!

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so wuthton, the WO 80/480 Lomo that you have, is the same physically as the WO ZS80II? (aside from the DDG focuser)

They look similar but that is where the similarities end.

The ZS80II has a longer focal length of 545mm (I use a reducer that I had spare), it's F6.8 rather than F6. It's also a doublet rather than a triplet, it's inferior in just about every aspect.

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