Askar 185APO 1.0x Refractor Telescope User Manual Product Information
- June 1, 2024
- Askar
Table of Contents
185APO 1.0x Refractor Telescope
Product Information
Specifications
- Model: 185APO 1.0x Full Frame Flattener
- Filter Thread: 2 inches
- Focal Plane: 35mm
- Weight: 0.74kg
- Compatible Threads: M480.75, M540.75, M681, M921
Product Usage Instructions
Installation Instructions
- Unscrew the 2-inch adapter and the 1.25-inch adapter.
- Unscrew the dust cap of the accessory and screw it into the
185APO.
Usage Guidelines
The 1.0x flattener does not alter the telescope’s focal ratio.
When connected with the Askar 185APO, it maintains a focal ratio of
7. The flattener corrects field curvature and coma, resulting in
flatter field edges and sharper star points.
Attention
-
When using with a 2-inch diagonal, 0.8x reducer, or 1x
flattener, refer to the provided figure. -
Rotate the locking ring in the direction of the arrow.
-
Pull out the retractable part completely.
-
Lock the locking ring in reverse to secure.
FAQ
Q: Does the flattener change the telescope’s focal ratio?
A: No, the 1.0x flattener maintains the telescope’s focal ratio
when connected with Askar 185APO.
Q: What issues does the flattener correct?
A: The flattener corrects field curvature and coma, resulting in
flatter field edges and finer star points.
Q: How should I install the flattener?
A: Unscrew the adapters, attach the dust cap, and follow the
provided guidelines for securing and using the flattener with your
telescope.
185APO 1.0x 185APO 1.0x Full Frame Flattener
Users Manual
M92×1 M68×1
M54×0.75 M48×0.75
2 2”filter thread
focal plane
35
51
44
18
55
159
www.sharpstar-optics.com
185APO 1295mm 185APO f/7 55mmM48 0.74kg M68×1
M54×0.75 M54×0.75-M48×0.75M48×0.75
Instructions for use
1.0xAskar 185APO F7
1.0×0.74kg M4855mmM921 M681M540.75M480.75 M480.75 2 CNC
The 1.0x flattener does not change the telescope’s focal ratio itself. After
connecting with the Askar 185APO, it still maintained a focal ratio of 7. The
flattener corrects field curvature and coma, resulting in flatter field edges
and finer star points.
The 1.0x flattener adopts a triplet design and supports a 44mm full-frame
image circle. The overall weight is 0.74kg. The back focus from the M48 thread
is a standard 55mm. The front thread is M841. At the camera end, it is
equipped with M681, M540.75, and M480.75 three sizes of adapters, which are
convenient for connection. At the same time, it has a built-in M480.75 2-inch
filter thread, which can be directly installed and used. The overall CNC
machined, both end threaded metal caps prevent ash when not in use.
Parameter After attaching185APO Focal length1295mm After attaching185APO Focal
ratiof/7 Lens NumberTriplet design Back Focus55mmfrom the base of M48 male
thread Weight0.74kg Rear-end thread typeM68×1
M54×0.75 M54×0.75-M48×0.75(M48×0.75 filter thread inside)
Installation instruction
21.25 Unscrew the 2″ adapter and the 1.25″ adapter
Unscrew the dust cap of the accessoryand screw it into the 185APO
Attention
20.8×1.0x When used with 2″ diagonal, 0.8x reducer or 1x flattener, please
refer to the figure.
Rotate the locking ring in the direction of the arrow
Pull the retractable part out completely
Lock the locking ring reversely
Official site
YouTube
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