{"id":92382,"date":"2026-01-04T19:44:38","date_gmt":"2026-01-04T18:44:38","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=92382"},"modified":"2026-10-13T11:06:01","modified_gmt":"2026-10-13T09:06:01","slug":"omegon-ac-90-500-ota","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-ac-90-500-ota\/","title":{"rendered":"Omegon AC 90\/500 OTA"},"content":{"rendered":"

Omegon AC 90\/500 OTA: Rich field telescope with 2-inch Crayford<\/h2>\n\n\n\n

The Omegon AC 90\/500 OTA<\/strong> is the adult wide-field scope of the line: 90 mm aperture, 500 mm focal length (f\/5.6), and a 2-inch Crayford focuser. Including tube rings and a carrying bag, this is a serious travel scope, a wide-field binocular on an existing mount, or a reliable guide scope alongside a large telescope.<\/p>\n\n\n\n

The achromatic doublet lens with multi-coating combines two types of glass to reduce chromatic aberration. At high magnification, a thin color fringe remains visible around bright objects; this is characteristic of this type of lens and does not interfere with normal use.<\/p>\n\n\n\n

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2-inch Crayford: smooth and heavy-duty<\/h4>\n\n\n\n

The Crayford focuser operates backlash-free and also supports heavy 2-inch wide-angle eyepieces. This allows you to get the maximum field of view out of the short focal length: entire star fields at a glance. The 1.25\/2-inch adapter is included.<\/p>\n\n\n\n

Sharp up to about 80x to 100x; above that, the f\/5.6 achromat shows color fringing. For wide-field use and as a guide scope, that is not an objection at all.<\/p>\n<\/div>\n<\/div>\n\n\n\n

Spotting scope or travel telescope<\/h4>\n\n\n\n

The included tube rings fit a standard dovetail plate, allowing the tube to be mounted next to or on top of a larger telescope. In its carrying case, it is a complete travel telescope that only requires a tripod.<\/p>\n\n\n\n

Included<\/h4>\n\n\n\n