Askar FMA180 The original Askar FMA180 combines a 40 mm dual-ED triplet objective with a three-element reducer for a six-element photographic configuration. With the reducer it operates at 180 mm and f/4.5; the objective alone is 220 mm and f/5.5.
Manufacturer model: Askar FMA180 · Specifications checked against manufacturer data on 2026-11-04
The original Askar FMA180 combines a 40 mm dual-ED triplet objective with a three-element reducer for a six-element photographic configuration. With the reducer it operates at 180 mm and f/4.5; the objective alone is 220 mm and f/5.5.
Photographic and visual configurations
The manufacturer describes separate extension-tube arrangements for reduced photography, unreduced photography and 1.25-inch visual use. The photographic interface is M42×0.75.
Backfocus and mounting
In the recommended reduced photographic configuration, camera backfocus is 55 mm. Removing the designated extension changes that allowance to 83 mm. The included ring/finder-bracket assembly can also be used on a main telescope, and its detachable plate is Arca-Swiss compatible for tripod attachment.
Portable optical system
Askar specifies 145 mm length in photographic mode and 395 g total weight in the published table. The standard package includes the six-element lens body, rings, finder bracket, extension tubes, 1.25-inch adapter, Allen key and manual. Its combination of focal lengths and mounting modes supports imaging, observing and guiding.
Askar FMA180 The original Askar FMA180 combines a 40 mm dual-ED triplet objective with a three-element reducer for a six-element photographic configuration. With the reducer it operates at 180 mm and f/4.5; the objective alone is 220 mm and f/5.5.
Manufacturer model: Askar FMA180 · Specifications checked against manufacturer data on 2026-11-04
