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Product Description
The Askar 111F has 111mm aperture, 766mm focal length, and a native focal ratio of 6.9, suitable for various uses including astrophotography and daily photography.
The Askar 111F adopts a quadruplet lens design (three elements in the front, one in the rear), which includes an ED glass to effectively reduce chromatic aberration.
The main tube features a built-in baffle that further blocks stray light and enhances image quality. The Askar 111F supports full-frame imaging, delivering delicate and sharp stars across the frame.
Featuring a self-flattened design, users can shoot directly after connecting imaging accessories and achieving focus. This eliminates the need for purchasing additional flatteners or calculating back focus, offering simple operation and a smooth experience.
The Askar 111F comes standard with a photographic extension tube, which is designed with a 2-inch filter thread. It includes adapters with M48*0.75 and M54*0.75 specifications, ensuring compatibility with DSLR cameras or astronomy cameras to meet diverse needs.
Adhering to Askar's consistent design philosophy, the Askar 111F emphasizes detail and user experience, striving to reduce the cost of use. The lens hood is retractable, further shortening the overall length and enhancing portability. The lens tube utilizes high-quality CNC machining and painting processes. Its appearance continues the F-series' classic blue and white color scheme, presenting a simple and elegant aesthetic.
The handle of the Askar 111F is equipped with a finder base slot. Additionally, both sides of the focuser feature finder bases. This not only allows for changing the finder scope position without disassembly but also provides more locations for installing other astronomical accessories.
The Askar 111F is equipped with a 3-inch rack-and-pinion dual-speed focuser supporting 1:10 fine adjustment. The fine adjustment knob includes a protective cap to prevent damage. The rear of the focuser connects to a 360° graduated rotator, allowing for precise angle adjustments.
The dovetail plate is a 300mm long Vixen-style plate, equipped with 1/4-inch and 3/8-inch screw holes, enabling direct connection to a tripod.
The Askar 111F, a multi-purpose self-flattened astrograph, starts your versatile deep-sky exploration journey with exceptional cost-effectiveness.
Specifications
| Parameters | ||
| Aperture size | 111mm | |
| Focal length | 766mm | |
| Focal ratio | f/6.9 | |
| Objective lens | Quadruplet air-spaced APO(including one ED glass) | |
| Image circle | 44mm | |
| Maximum accessory connection (with the focuser fully retreated) |
Imaging mode: 73mm (from the base of M48×0.75 male thread） 91mm（from the base of M54×0.75 male thread) |
Observing mode: 132mm（from the end of 1.25" eyepiece holder） 142mm（from the end of 2" eyepiece holder） |
| Minimum accessory connection (with the focuser fully extended) |
Imaging mode: 43mm (from the base of M48×0.75 male thread） 61mm（from the base of M54×0.75 male thread) |
Observing mode: 102mm（from the end of 1.25" eyepiece holder） 112mm（from the end of 2" eyepiece holder） |
| Total length |
664mm(including 1.25" adapter as dew shield contracted） 751mm(including 1.25" adapter as dew shield fully stretched） 728mm(including the photographic adapter as dew shield contracted） 815mm(including the photographic adapter as dew shield fully stretched） |
|
| Focuser travel length | 30mm | |
| Net weight | 5.74kg | |
| Gross weight (Including tube ring&dovetail plate) | 6.76kg | |
| Rear-end thread type |
M78×1-M54×0.75 M54×0.75-M54×0.75 M54×0.75-M48×0.75 (with M48×0.75 filter thread) |
|
| Standard package items | A 111F OTA，a pair of tube rings, a handle, a 300mm Vixen dovetail plate,a set of photographic adapters | |
Product Size Diagram
Connection Diagram
The Locking Screw Position Diagram
Electronic Focuser Assembly Diagram
Optical Path Diagram
Spot Diagram
What can I see with a Askar 111F Flat-Field Quadruplet Astrograph | ASKAR-111F?
Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.
Jupiter with
25mm Eyepiece - 31x Magnification
(Sold Separately)
Jupiter with
10mm Eyepiece - 77x Magnification
Sold Separately
Jupiter with
5mm Eyepiece - 153x Magnification
Sold Separately
Moon with 25mm Eyepiece
31x Magnification
(Sold Separately)
Moon with 10mm Eyepiece
77x Magnification
Sold Separately
Moon with 5mm Eyepiece
153x Magnification
Sold Separately
Andromeda with 36mm Eyepiece
21x Magnification
Sold Separately
Andromeda with 25mm Eyepiece
31x Magnification
(Sold Separately)
Andromeda with 10mm Eyepiece
77x Magnification
Sold Separately
