Eyepieces

Oregon Star Party 2019 and Beta Drifter

It’s been a while, so there are two big things to cover. #1, showing off the beta Drifter at Oregon Star Party. #2, yes the beta Drifter is born–what’s been changed and how does it work? Oregon Star Party 2019 came and left quicker than Oumuamua but what an incredible weekend! Analog Sky set up…

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Drifter Alpha Short Takes

Here in Western Oregon we are in the cloudy part of the year when observing sessions are few and far between. This gives rise to arguably the world’s most innovative telescope making scene, but also makes it hard to test prototypes. Still, I’ve had a few great sessions that taught me a lot. #1 Dew-Session…

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Analog Sky Drifter Prototype 1 Notes

So it’s been a while since I updated this blog. That’s because the Drifter prototype 1 was finished 8-12 months ahead of schedule, in time for Oregon Star Party (OSP) 2018. I was too busy building it to post any updates. Many thanks to Jerry Oltion for helping me out of three or four jambs,…

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Custom 1.25″ Parfocal Ring Prototype

It’s hard to wait for 3d prints in the mail, so in the meantime, I designed two different parfocal rings. The first is a fixed-height ring that uses grub screws the same as the existing products on the market. 3d printing these is still cheaper than purchasing retail. The second is a little more radical:…

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34mm Siebert Optics Eyepieces

Today, the 34mm Siebert Optics eyepieces arrived in the mail. These are handmade by Harry Siebert in North Carolina. They are incredibly light, have a small diameter, and will display 3 degrees of sky in the Drifter. They are also produced and calibrated as a pair to ensure collimation. Beautiful! Tonight there was about one…

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