{"id":107751,"date":"2026-04-29T17:10:00","date_gmt":"2026-04-29T15:10:00","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=107751"},"modified":"2026-07-20T12:33:05","modified_gmt":"2026-07-20T10:33:05","slug":"televue-powermate-5x-1-25-barlow-lens","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/televue-powermate-5x-125-barlowlens\/","title":{"rendered":"TeleVue Powermate 5x 1.25\" - Barlow Lens"},"content":{"rendered":"

TeleVue Powermate 5x 1,25\" : Barlowlens: telecentrische vergroter van TeleVue<\/strong><\/h2>\n\n\n\n

De Powermate 5x is de specialist voor planeetfotografie met snelle telescopen. Een f\/4 tot f\/5 Newton komt met deze factor op f\/20 tot f\/25, het klassieke werkgebied voor lucky imaging met kleine pixels.<\/p>\n\n\n\n

Visueel is de 5x alleen zinvol op telescopen met een grote opening; reken vooraf na of de vergroting binnen twee keer de opening in millimeters blijft.<\/p>\n\n\n\n

\"TeleVue<\/figure><\/figure>\n\n\n\n

Telecentric instead of Barlow<\/h4>\n\n\n\n

A Powermate is not a Barlow. Behind the negative front group is a second, positive group that makes the light beam parallel again. The result: the magnification factor remains practically constant, regardless of what is behind it and at what distance.<\/p>\n\n\n\n

A classic Barlow lens changes its magnification as the distance to the sensor or eyepiece increases and shifts the eyepiece's exit pupil. The Powermate does neither of these, making it suitable for long optical trains and for photography.<\/p>\n\n\n\n

For planet photography<\/h4>\n\n\n\n

For moon and planet imaging with a video camera, the image scale determines the detail. The Powermate brings the f-ratio to the level that matches the camera's pixel size, with a predictable, fixed factor.<\/p>\n\n\n\n

With the matching T-ring adapter, you screw a camera directly onto the Powermate, without loose adapters in the train.<\/p>\n\n\n\n

Featured accessories<\/h3>\n\n\n\n

For photography, the PMT 1.25-inch T-ring adapter is included, allowing a camera with a T2 mount to screw directly onto the Powermate. Visually, the Powermate is compatible with any eyepiece from the merk series.<\/p>\n\n\n\n

For whom yes and for whom no<\/h3>\n\n\n\n