TeleVue 2x Powermate 2"

TeleVue Powermates are the best Barlow lenses available on the market.

Unique Benefits and Applications for Powermates

Vignetting, edge field aberrations and pupil movement - all introduced when using Barlows with long focal length eyepieces, are minimized.
Telecentric operation (field rays leave parallel to optical axis, unlike Barlow lenses which diverge rays). This is ideal for Hydrogen-alpha filter use such as with Daystar models.
High performance for image amplification, CCD or film (some of the finest Earth-based planetary imaging is being done with Powermates)
Flexible for visual and imaging with all types of telescopes and eyepieces. Essentially Parfocal, and with nearly constant magnification regardless of image distance behind top surface (except 5x model which increases 1x for every 35mm of image distance increase).
Higher magnifications are possible with high optical performance compared to "doubling up" Barlows.
All will reach parfocal point in star diagonals, except for the 2", 2x which comes very close.

GLS/EuroParcel: 15,90 €; European delivery 2-5 days.
PostNord Parcel locker: 5,90 €
PostNord Home deliver: 19,00 €; Environmentally friendly delivery to your door at the agreed time. Trackable deliveries in real time even in the evenings in the biggest cities. Change your delivery as required.
UPS Standard: 14,90 €; Delivery to Europe in 2 to 5 days.
Postipaketti: 5,90 €
Kotipaketti: 12,90 €