Askar 50P f/3.8 Petzval APO Refractor Telescope
Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
Contiguous US / Lower 48:
Free shipping applies to orders over $50 using our chosen carrier/method. Faster paid options are available at checkout.
Alaska, Hawaii & US Territories:
Free shipping applies to many—but not all—products. Enter your ZIP code in cart or upon checkout to confirm options and costs.
International:
International orders do not qualify for free shipping. Shipping, duties, brokerage, tariffs, and taxes are the customer’s responsibility. Some items may be restricted due to export, size, or manufacturer limitations.
- Ultra compact & portable telescope designed for wide field astrophotography
- Supports up to APS-C sized camera sensors for imaging
- Ultra-fast f/3.8 focal ratio allows for shorter total exposure times
- Peztval APO refractor with super-low dispersion glass ensures each image is flat and well color corrected
- Built for astrophotography with features like filter threading, 360° camera rotator, and an easy focusing ring
- Incredibly light at just 3.1 lb (1.4 kg) means you can truly take it anywhere
Askar 50P Overview Video: Specs, Example Images, & Included Items
Askar 50P: Professional Performance in a Minimal Footprint!
The Askar 50P is an ultra-portable APO refracting telescope that combines a 50 mm aperture, 190 mm focal length and an ultra-fast f/3.8 focal ratio into an exceptionally compact package. Built for wide-field astrophotography and grab-and-go observing. The quadruplet APO optical design delivers expansive views with bright, well-corrected stars and ehanced contrast across the frame.
Lightweight yet capable, the 50P is jam-packed with essential features, including two built-in filter threads, a 360° camera rotator, and a versatile tube ring with an integrated carrying handle. Whether you are beginning your journey into deep-sky imaging or seeking a high-quality portable second telescope, the Askar 50P—with its thoughtful design, robust optics, and attention to practical detail—is built to be a reliable companion under the stars.
Features Designed with Imagers in Mind
360 Camera Rotator
Including an integrated 360° camera rotator that lets you adjust your image composition without twisting cables or tweaking your mount. Helping you frame a wide nebula or line up a target for a mosaic, the rotator provides smooth, secure rotation and positive locking at any angle, giving you full control over composition.
Easy Focusing Ring
Equipped with an integrated single-speed focusing ring featuring standard MXL timing belt teeth, this system delivers precise manual adjustments right out of the box. The built-in MXL profile also allows for seamless electronic focuser integration, making it easy to upgrade for automated, hands-free focusing in advanced imaging setups.
Built-in Filter Threads
Designed for flexibility, the 50P features two integrated filter threads: M52 threading at the front of the optical tube, and 2-inch threading on the rear for larger imaging filters. This dual-thread setup lets you swap or stack filters easily, whether you’re using color, broadband, or narrowband filters—and keeps your imaging train streamlined without extra adapters.
Collapsible and Compact
Built as a single lightweight unit, the lens tube keeps things simple, sturdy, and travel-ready. The reversible bayonet lens hood easily extends during use to block stray light and boost contrast, then quickly flips around for storage to keep the overall size compact. Paired with a protective dust cover, it’s designed to make setup, transport, and storage effortless—so you can spend less time fussing with gear and more time enjoying the night sky.
Quadruplet Petzval APO Optics
The 50P features a quadruplet Petzval apochromatic design, incorporating one SD (Super low dispersion) glass element to help control chromatic aberration and deliver color-accurate stars. The rear two elements are cemented for improved optical stability and correction, supporting APS-C sensors and optimized for 1-inch format cameras. Thanks to the field-flattened design, there’s no need for additional correctors or reducers—just attach your camera, dial in focus, and start capturing beautifully flat, edge-to-edge images!
Integrated Tube Ring
The tube ring isn’t just there for support—it doubles as a built-in carrying handle, making it easy to grab and go. The bottom slot follows the Arca-Swiss standard, so you can mount it straight onto a tripod without needing an extra plate. There are also finder mounts on both sides of the ring, plus multiple M4 threaded holes for adding accessories. Whether you’re attaching a guide scope, finder, or other gear, there’s plenty of room to customize your setup and make it your own.
Built for Flexibility
The included dovetail plate measures 160 mm (6.3 in) in length, providing a stable, secure mounting surface. Remove the dovetail, and the base underneath transforms into a built-in finder scope platform—perfect for attaching to a larger telescope and using the 50P as a lightweight guide scope. It’s a smart, dual-purpose design that adds even more flexibility to your setup.
Optical Diagrams
Specifications
-
Aperture: 50 mm (2 in)
-
Focal length: 190 mm
-
Focal ratio: f/3.8
-
Objective lens: Quadruplet petzval APO + SD glass
-
Total length:
-
147 mm (5.8 in) dew sheild contracted
-
182 mm (7.6 in) dew sheild extended
-
-
Sensor compatibility: Optimized for APS-C & 1-Inch sensors
-
Gross weight: 1.4 kg (3.1 lb)
-
Rear-end thread: M48 adapter (w/ M48x0.75 filter thread)
-
Camera back spacing: 50-65 mm (2.0-2.6 in)
System Diagram
Imaging Connection Diagram
Mechanical Diagram
Other Information
- Country of Manufacture: China
Askar 50P Overview Video: Specs, Example Images, & Included Items
Askar 50P: Professional Performance in a Minimal Footprint!
The Askar 50P is an ultra-portable APO refracting telescope that combines a 50 mm aperture, 190 mm focal length and an ultra-fast f/3.8 focal ratio into an exceptionally compact package. Built for wide-field astrophotography and grab-and-go observing. The quadruplet APO optical design delivers expansive views with bright, well-corrected stars and ehanced contrast across the frame.
Lightweight yet capable, the 50P is jam-packed with essential features, including two built-in filter threads, a 360° camera rotator, and a versatile tube ring with an integrated carrying handle. Whether you are beginning your journey into deep-sky imaging or seeking a high-quality portable second telescope, the Askar 50P—with its thoughtful design, robust optics, and attention to practical detail—is built to be a reliable companion under the stars.
Features Designed with Imagers in Mind
360 Camera Rotator
Including an integrated 360° camera rotator that lets you adjust your image composition without twisting cables or tweaking your mount. Helping you frame a wide nebula or line up a target for a mosaic, the rotator provides smooth, secure rotation and positive locking at any angle, giving you full control over composition.
Easy Focusing Ring
Equipped with an integrated single-speed focusing ring featuring standard MXL timing belt teeth, this system delivers precise manual adjustments right out of the box. The built-in MXL profile also allows for seamless electronic focuser integration, making it easy to upgrade for automated, hands-free focusing in advanced imaging setups.
Built-in Filter Threads
Designed for flexibility, the 50P features two integrated filter threads: M52 threading at the front of the optical tube, and 2-inch threading on the rear for larger imaging filters. This dual-thread setup lets you swap or stack filters easily, whether you’re using color, broadband, or narrowband filters—and keeps your imaging train streamlined without extra adapters.
Collapsible and Compact
Built as a single lightweight unit, the lens tube keeps things simple, sturdy, and travel-ready. The reversible bayonet lens hood easily extends during use to block stray light and boost contrast, then quickly flips around for storage to keep the overall size compact. Paired with a protective dust cover, it’s designed to make setup, transport, and storage effortless—so you can spend less time fussing with gear and more time enjoying the night sky.
Quadruplet Petzval APO Optics
The 50P features a quadruplet Petzval apochromatic design, incorporating one SD (Super low dispersion) glass element to help control chromatic aberration and deliver color-accurate stars. The rear two elements are cemented for improved optical stability and correction, supporting APS-C sensors and optimized for 1-inch format cameras. Thanks to the field-flattened design, there’s no need for additional correctors or reducers—just attach your camera, dial in focus, and start capturing beautifully flat, edge-to-edge images!
Integrated Tube Ring
The tube ring isn’t just there for support—it doubles as a built-in carrying handle, making it easy to grab and go. The bottom slot follows the Arca-Swiss standard, so you can mount it straight onto a tripod without needing an extra plate. There are also finder mounts on both sides of the ring, plus multiple M4 threaded holes for adding accessories. Whether you’re attaching a guide scope, finder, or other gear, there’s plenty of room to customize your setup and make it your own.
Built for Flexibility
The included dovetail plate measures 160 mm (6.3 in) in length, providing a stable, secure mounting surface. Remove the dovetail, and the base underneath transforms into a built-in finder scope platform—perfect for attaching to a larger telescope and using the 50P as a lightweight guide scope. It’s a smart, dual-purpose design that adds even more flexibility to your setup.
Optical Diagrams
Specifications
-
Aperture: 50 mm (2 in)
-
Focal length: 190 mm
-
Focal ratio: f/3.8
-
Objective lens: Quadruplet petzval APO + SD glass
-
Total length:
-
147 mm (5.8 in) dew sheild contracted
-
182 mm (7.6 in) dew sheild extended
-
-
Sensor compatibility: Optimized for APS-C & 1-Inch sensors
-
Gross weight: 1.4 kg (3.1 lb)
-
Rear-end thread: M48 adapter (w/ M48x0.75 filter thread)
-
Camera back spacing: 50-65 mm (2.0-2.6 in)
System Diagram
Imaging Connection Diagram
Mechanical Diagram
| Manufacturer | Askar |
|---|---|
| Telescope Focal Length | Up to 300mm |
- 1x Askar 50P OTA with tube ring
- 1x Quick-release dew shield
- 1x Front dust cap
- 1x 160mm Vixen dovetail
- 1x Multi-functional handle
- 2x finder bases
- 1x Instruction manual
- 1x Warranty card
- 1x Inspection check list
- Ultra compact & portable telescope designed for wide field astrophotography
- Supports up to APS-C sized camera sensors for imaging
- Ultra-fast f/3.8 focal ratio allows for shorter total exposure times
- Peztval APO refractor with super-low dispersion glass ensures each image is flat and well color corrected
- Built for astrophotography with features like filter threading, 360° camera rotator, and an easy focusing ring
- Incredibly light at just 3.1 lb (1.4 kg) means you can truly take it anywhere
Askar 50P Overview Video: Specs, Example Images, & Included Items
Askar 50P: Professional Performance in a Minimal Footprint!
The Askar 50P is an ultra-portable APO refracting telescope that combines a 50 mm aperture, 190 mm focal length and an ultra-fast f/3.8 focal ratio into an exceptionally compact package. Built for wide-field astrophotography and grab-and-go observing. The quadruplet APO optical design delivers expansive views with bright, well-corrected stars and ehanced contrast across the frame.
Lightweight yet capable, the 50P is jam-packed with essential features, including two built-in filter threads, a 360° camera rotator, and a versatile tube ring with an integrated carrying handle. Whether you are beginning your journey into deep-sky imaging or seeking a high-quality portable second telescope, the Askar 50P—with its thoughtful design, robust optics, and attention to practical detail—is built to be a reliable companion under the stars.
Features Designed with Imagers in Mind
360 Camera Rotator
Including an integrated 360° camera rotator that lets you adjust your image composition without twisting cables or tweaking your mount. Helping you frame a wide nebula or line up a target for a mosaic, the rotator provides smooth, secure rotation and positive locking at any angle, giving you full control over composition.
Easy Focusing Ring
Equipped with an integrated single-speed focusing ring featuring standard MXL timing belt teeth, this system delivers precise manual adjustments right out of the box. The built-in MXL profile also allows for seamless electronic focuser integration, making it easy to upgrade for automated, hands-free focusing in advanced imaging setups.
Built-in Filter Threads
Designed for flexibility, the 50P features two integrated filter threads: M52 threading at the front of the optical tube, and 2-inch threading on the rear for larger imaging filters. This dual-thread setup lets you swap or stack filters easily, whether you’re using color, broadband, or narrowband filters—and keeps your imaging train streamlined without extra adapters.
Collapsible and Compact
Built as a single lightweight unit, the lens tube keeps things simple, sturdy, and travel-ready. The reversible bayonet lens hood easily extends during use to block stray light and boost contrast, then quickly flips around for storage to keep the overall size compact. Paired with a protective dust cover, it’s designed to make setup, transport, and storage effortless—so you can spend less time fussing with gear and more time enjoying the night sky.
Quadruplet Petzval APO Optics
The 50P features a quadruplet Petzval apochromatic design, incorporating one SD (Super low dispersion) glass element to help control chromatic aberration and deliver color-accurate stars. The rear two elements are cemented for improved optical stability and correction, supporting APS-C sensors and optimized for 1-inch format cameras. Thanks to the field-flattened design, there’s no need for additional correctors or reducers—just attach your camera, dial in focus, and start capturing beautifully flat, edge-to-edge images!
Integrated Tube Ring
The tube ring isn’t just there for support—it doubles as a built-in carrying handle, making it easy to grab and go. The bottom slot follows the Arca-Swiss standard, so you can mount it straight onto a tripod without needing an extra plate. There are also finder mounts on both sides of the ring, plus multiple M4 threaded holes for adding accessories. Whether you’re attaching a guide scope, finder, or other gear, there’s plenty of room to customize your setup and make it your own.
Built for Flexibility
The included dovetail plate measures 160 mm (6.3 in) in length, providing a stable, secure mounting surface. Remove the dovetail, and the base underneath transforms into a built-in finder scope platform—perfect for attaching to a larger telescope and using the 50P as a lightweight guide scope. It’s a smart, dual-purpose design that adds even more flexibility to your setup.
Optical Diagrams
Specifications
-
Aperture: 50 mm (2 in)
-
Focal length: 190 mm
-
Focal ratio: f/3.8
-
Objective lens: Quadruplet petzval APO + SD glass
-
Total length:
-
147 mm (5.8 in) dew sheild contracted
-
182 mm (7.6 in) dew sheild extended
-
-
Sensor compatibility: Optimized for APS-C & 1-Inch sensors
-
Gross weight: 1.4 kg (3.1 lb)
-
Rear-end thread: M48 adapter (w/ M48x0.75 filter thread)
-
Camera back spacing: 50-65 mm (2.0-2.6 in)
System Diagram
Imaging Connection Diagram
Mechanical Diagram
Other Information
- Country of Manufacture: China
| Manufacturer | Askar |
|---|---|
| Telescope Focal Length | Up to 300mm |
- 1x Askar 50P OTA with tube ring
- 1x Quick-release dew shield
- 1x Front dust cap
- 1x 160mm Vixen dovetail
- 1x Multi-functional handle
- 2x finder bases
- 1x Instruction manual
- 1x Warranty card
- 1x Inspection check list
Askar 50P f/3.8 Petzval APO Refractor Telescope