2,67x APM Comacorr-Barlow (visual housing)

incl. 27% VAT

179.14
Including 27% VAT:
179.14 € (62 700 HUF)
Net price (for non-EU customers):
141.06 € (49 370 HUF)
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Stock avalability
Budapest shop:
Limited stock (1 piece). Please contact our colleagues before ordering: +36-1-202-5651
Delivery:
Limited stock (1 piece). Please contact our colleagues before ordering: +36-1-202-5651
Bp. shop:Limited stock
Delivery:Limited stock

Product code: APM267x

2,67x APM Comacorr-Barlow (visual housing)

More about the product

Our totally new photo-visual apochromatic Barlow with real ED glass, calculated for the correction of Off-Axis Coma at Newtonian telescopes. This Barlow allows you to observe planets and deep sky objects at the edge from the 1.25" field of view with the same quality as on axis. Especially Dobsonian user will profit because most time the objects are not exactly centered on axis.

The photographic coma corrected field is perfect for APS-C. Because of its unique quality this barlow can also be used with refractors, SC etc. with a image quality, no other Barlow will reach, equal of its price.

Due Forum discussions pushed, Gerd Düring in Germany designed this new, improved coma corrected ED Barlowlens, optimized for parabolic mirrors with f-ratio f/4.

This Barlow uses as ED-element the Chinese ED glas FK61 (similar to Ohara FPL51), the lenses are soft cemented and applied on both sides with a broadband multicoating with over 99 % transmission for wavelength from 400 nm to 700 nm.

The optimal backfocus is 105 mm from center of the last lens. The focal length of the barlow is - 62.9 mm, the clear aperture 22 mm.

This barlow offers with its 22 mm aperture in secondary focus a 100 % illuminated  photo-visual field for APS-C when used with 105 mm backfocus.

The 2-part adapter is photo-visual optimized, visual with the optimal backfocus of 105 mm with the new APM-Deluxe Centering Brass-Clamp. This top Deluxe adapter has a length of 55 mm and can be unscrewed, than you get a photographic T2 thread (M42 x 0.75 mm) for use with DSLR with T2 adapter ring.

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