Diagonal with a filter slot built in & Upcoming event (NAM 2017)

6th May 201721st March 2022 Nicholas 2017, filter, nam, nam2017, render, theia, theia90

Hello. Its always been our plan to build a range of accessories to bring new life into the astronomy accessory field. One thing on our list was a diagonal with a filter changer built right into it. After getting some feedback from the community about the turret and its features we decided to push the diagonal up the list so we present to you the Theia90.

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Built from 5-axis CNC’d aluminium, using the same 1/10th finish mirror as our turret and with our filter slot built in, the Theia90 is a great choice for expanding or simplifying your nights viewings. Allowing you to quickly swap filters for imaging or observations.

We are aiming to be able to show it off at our next event which is the National Astronomy meeting 2017 this year being held at Hull University. We greatly enjoyed NAM 2016 at Nottingham university and we cant wait for this years event.

Wishing you clear skies

Alpha Lyra Reviews

On Our Theia 90 Star Diagonal
“First impressions of the diagonal itself are very favourable, looking like a solid and well-engineered piece of equipment.“ “Using Jupiter and a third quarter Moon, I evaluated scatter around the object which can diminish the visibility of low contrast surface features. If there were any differences in brightness and extent of the scatter (measured against the position of the Galilean satellites), I was unable to see it.“ “All these tests lead me to conclude that mirror in the Theia90 is of high quality and very much the equal of other quality, highly reflective mirror diagonals”

On Our Cerberus Case"The team seem rather proud of these cases and just how robust they are as Nick (who stands over 6 feet tall) demonstrated to me at Astrofest by standing on the case and then jumping up and down on it. [...] the Cerberus Case would be an excellent choice for an eyepiece case or as a travel case for a small 6-8cm aperture scope and accessories for trips to dark distant lands as those dimensions comply with the most restrictive of hand baggage allowances."
Full review here

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