Askar 65 PHQ Quintuplet Flatfield Astrograph

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Askar 65 PHQ Quintuplet Flatfield Astrograph

£979.00✓ 2 year warranty

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65PHQ Green: £979.00

:	2x in stock shipped 1-2 working days

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Frequently bought with this product:

Askar 0.75x Focal Reducer for 65PHQ

+ £209.00

About this product

Model: askar_65_phq_green
Part Number: 65PHQ

Optical Bench Test

At FLO, we check all our Askar telescopes on an optical bench before dispatch.

So you can be confident your telescope will have well-figured optics, negligible false colour and spherical aberration, and no astigmatism (the bane of any optical system!). Star shapes will be round, not triangular, oval or egg-shaped!

Features a quintuplet (5 lens elements) optical design with two ED glasses that covers full-frame sensors, without an additional screw-on field flattener.

The f6.4 focal ratio and 65mm aperture make the 65PHQ an excellent telescope for use with portable astronomy mounts.

Though designed primarily for astrophotography, when used for visual astronomy, the 65PHQ also provides wonderful views of the moon, star clusters, brighter nebulae, Jupiter's moons and even some distant galaxies.

Sturdy 2.5” 360° rotatable focuser with scales and finder base.

M68, M54, and M48 camera adapters are also included.

The M48 adapter has a 2” female thread for installing filters.

CNC machined and body with telescopic dew shield.

The OTA weighs 2kg, and the complete package with tube rings weighs 2.8kg.

Spot Diagram

Specifications

Aperture size：65mm
Focal length：416mm
Focal ratio：f/6.4
Objective lens： Quintuplet air-spaced APO (including two ED glasses)
Image circle：44mm

Maximum accessory connection (with the focuser fully retracted)：

1. Imaging mode:

76mm（from the base of M48×0.75 male thread）
105mm（from the base of M54×0.75 male thread）
130mm（from the base of M68×1 male thread）

2. Observing mode:

121mm（from the end of 2" eyepiece holder）

Total length：

328mm（including 1.25" eyepiece holder as dew shield contracted）
388mm（including 1.25" eyepiece holder as dew shield fully stretched）
360mm（including the 3-piece adapter as dew shield contracted）
420mm（including the 3-piece adapter as dew shield fully stretched）

Net weight：2kg
Gross weight：2.8kg

Rear-end thread type：

M68×1-M54×0.75
M54×0.75-M54×0.75
M54×0.75-M48×0.75 (M48×0.75 filter thread inside)

The rear end of the 3-piece photographic adapters：

M48×0.75