Antares collimatable diagonal for SCT thread: £61.27

Ultra short input profile collimatable diagonal

If you have a Schmidt-Cassegrain (SCT) or refractor telescope with 2" capacity and are using regular or enhanced aluminum coatings with your diagonal, your transmission will be between 88% and 92% over the visual spectrum. You're throwing light away! And if you are using a 1.25" diagonal with a 2" format, you're missing out on your telescope's widefield performance.

All Antares 2" diagonals feature enhanced silver coatings with a visual light efficiency of over 98%. Your image is conveniently delivered with virtually no light loss at all. There are five models available for both straight 2" bores and for standard 50mm thread Schmidt-Cassegrain telescopes. All feature 6-layer enhanced silver coatings with overcoating protection and include 1.25" adapter.

Collimatable diagonal for standard SCT thread. The ultra-short input profile on this diagonal will allow swing-through on most fork mounted versions.

Please note that stock levels do fluctuate so please call or email to check today's stock before placing your order.

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