There has been an upsurge in demand for high quality visual doublets with ED glass in the sweet spot 5" aperture class ideally at around f8 - dare I say something to fill the void left by the legendary Takahashi FS128?
Well Altair Astro have been working away to provide us with just that, at the end of last week they kindly shipped serial nr001 to us here for some testing, as you can see from the images below it is a classic - in white with black cells but with plenty of modern touches for practicality. Let me introduce the Altair 125 EDF, boasting a premium FPL-53 doublet at 125mm aperture and an f7.8 focal ratio, absolutely the right prescription for visual observers wanting aperture, portability, fast cool down and build quality.
The fully baffled aluminium tube has a quality finish with retractable sliding dewshield making it just 33" in transport mode - the fully rotatable premium dual speed rack and pinion focuser is a precision dream to use and has the positive lock system to hold your diagonal securely. Quality hinged tube rings are robust and practical with easy grip knobs. The lens cell is fully collimatable, in my opinion essential on any high quality refractor.
I know you will all be wanting a first light report! I will be posting first light and optical testing in subsequent posts to follow shortly, for now enjoy the pics and feel free to ask any questions. Pricing and availability will be published as soon as we know, thanks for looking.
Edited by HARRISON SCOPES, 19 June 2017 - 11:17 AM.