A portable, versatile quadruplet APO astrograph

Pack a powerful astrophotography optic with you wherever you go, with this small scope! With 50 mm of aperture and a snappy f/3.8 design free of strict backfocus requirements, this fast scope kickstarts imaging sessions from the backyard or on-the-go. Picturesque wide-angle portraits are just a handful of shots away, with the Askar 50P Petzval Astrograph!

Create stellar shots of deep sky objects with less integration time, with the Askar 50P Petzval Astrograph! The lightning fast f/3.8 focal ratio collects data in a flash, allowing you to begin pulling out detail and contrast in deep sky objects sooner. At 147 mm (just under 6") collapsed and a featherweight 1.4 kg (3.1 pounds), this snappy astrophotography performance is ultra-portable, ready to provide incredible results wherever you go. The quadruplet Petzval design behind this scope not only provides clarity, sharpness, and contrast across the flat 1" imaging circle, but also alleviates the strict backfocus requirements that can make building your imaging train more involved than you might prefer. With 190 mm of focal length from the 50 mm aperture, you´ll capture stunning views of large deep sky objects like the Orion Nebula with ease.

Fast f/3.8 and 190 mm focal length for deep astro images in just one night. Perfect for mobile astrophotography with tracking mounts or parallel on your telescope.

 

Retractable dew shield - ideal for transport, including air travel - the dew shield improves contrast in daytime photography.

 

Quadruplet Petzval APO design - for high sharpness right to the edge of an APS-C lens. A flat is necessary for APS-C in order to achieve uniform illumination.

 

Multifunctional ring with carrying handle and universal mounting plate with finder shoes - the base plate has Vixen GP standard and also allows connection to photo tripods. The carrying handle also allows the connection of dovetails according to Arca-Swiss standard.

 

The telephoto lens is optimized for photography and offers features such as sensitive helical focusing, integrated M52x0.75 lens filter thread, connection thread for 2" filters on the camera side, and precise 360° rotation to position the object correctly.

 

With little effort, the telephoto lens can be disassembled into handy individual parts.

 

The comprehensive scope of delivery - the AS50P is a ready-to-use manual telephoto lens.

 

The dimensions and back focus of the AS50P:

 

The AS 50P is suitable for astro cameras, but also for mirrorless system and DSLR cameras.

 

SD glass for excellent chromatic correction and a 4-element design for a flat image field.

 

Objective lens:	Quadruplet Petzval Apochromat (including one piece of SD glass)
Aperture:	50 mm
Focal length:	190 mm
Focal ratio:	f/3.8
Format specifications:	Supporting APS-C format and optimized for 1-inch sensors
Rear-end connection distance:	Supports 50-65 mm range (recommended connection length is 55 mm)
Focuser type:	Helical focuser
Focuser travel:	15 mm
Front filter thread:	M52x0.75
Rear-end thread type:	M54x0.75, M48x0.75 adapter (with M48x0.75 filter thread)
Finder bases:	2x Vixen type, 1x Arca-Swiss type in the handle
Mount connection:	Vixen style dovetail bar, length 160 mm
Dew shield diameter:	70 mm
Total length:	147 mm (when the dew shield is contracted), 182 mm (when the dew shield is stretched)
Gross weight (including tube ring and dovetail plate):	1.4 kg