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Askar FMA F230 f/5.5 Triplet APO Refractor Telescope with f/4.6 Reducer
Askar FMA F230 f/5.5 Triplet APO Refractor Telescope with f/4.6 Reducer
Askar FMA F230 f/5.5 Triplet APO Refractor Telescope with f/4.6 Reducer

Askar FMA F230 f/5.5 Triplet APO Refractor Telescope with f/4.6 Reducer

£669.00
(Inc. 20% VAT)
Loyalty Points: 669
In stock, Shipped in 1-2 working days
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Product Code
ASKR-FMA230
Brand
Aperture (mm)
50 mm
Telescope Type
APO Triplet Refractor
Email us a question about this ProductAskar
Description

ASKAR FMA F230 f/5.5 Astrograph Camera Lens - Triplet APO Refractor Telescope with f/4.6 reducer

The ASKAR FMA230 objective lens features a triplet air-spaced APO design, includes two pieces of ED (extra-low dispersion) glass, providing excellent correction of chromatic aberration, which lays the foundation for high quality astrophotography and observation.

The FMA230 has a compound lens system. The front objective lens comprises three lenses and the posterior reducer is composed of four lenses and thus it’s sometimes dubbed as a “three at the front and four at the rear” system. The aperture size of the objective lens is 50mm and the original focal length is 275mm thus we’ve got a relatively fast focal ratio of f/5.5. The objective lens contains two ED glasses which are adapted to cure chromatic aberrations.

One can barely find an equal counterpart in the market as designing a three-element apochromatic objective lens in astrograph with such size demands more on craftsmanship and processing technique. We made it because we consistently cling to the belief that we have to deliver a better imaging result to our customers. The FMA230 can solely function as a lens to observe the ground scenery or stars in the sky, or as a telescope for direct-focus photography. You should just fine-tune the helical focuser to perfectly focus without adding extra optical devices.

The four-element reducer is a 0.84×optical device which can change the the FMA230 into a 50mm-aperture astrograph with a focal length of 230mm and a focal ratio of f/4.6. The reducer is designed specially for sophisticated astrophotography, which plays an essential role in improving the image quality generally across the whole field of view. And it pays special attention to the stars at the edge of the image. The pictures will be greatly enhanced and detailed under the help of this dedicated reducer even the imaging equipment you use is a rather professional full-frame ordinary or astronomy camera.

FMA230 is equipped with useful standard accessories.

The pair of tube rings are artistically pierced. Its stalks are lengthened which means that the tube rings provide more room for the devices, like a camera, that are attached to the FMA230, so they won’t collide with the dovetail plate under the astrograph. 

The FMA230 comes with a Vixen-style dovetail plate. Screw the tube-ring-wrapped astrograph onto the dovetail plate and then directly slide the assembly into the slot on top of an equatorial mount. The slot at the center of the dovetail plate is carved for the attachment to a tripod. It’s quite convenient and helpful especially when you carry out some ground imaging or observation.

In order to solve the awkwardness of carrying around your astrograph when you engage in field astrophotography, the FMA230 is designed with a pretty-looking and utility handle. The detachable handle is installed on the top side of the tube ring. The handle is not just literally a handle, the dovetail slot carved out of the handle can also be a base for the attachment of finders, guiders or ASIAIRs that have a corresponding dovetail foot. So you have more room to integrate as many accessories as possible. Besides, the handle is carved with 45°Arca-swiss style slots at the sides, so an upside-down handle can be directly slid into a corresponding Arca-swiss clamp on a camera tripod.

The lightweight and compact FMA230 is a new sibling from the Askar FMA- family, it will definitely bring your observing and imaging experience to a whole new level! 

WHAT'S IN THE BOX

  • FMA230 body
  • a pair of multi-directional tube rings
  • utility-handle (that also serves as a multi-purpose finderscope bracket)
  • two extension tubes
  • instruction manual
  • 2" adapter (2" eyepiece holder)
Specifications

Specifications: Askar FMA F230 f/5.5 Triplet APO Refractor Telescope with f/4.6 Reducer

Aperture (mm) 50
Focal Length (mm) 230
Focal Ratio f/ 4.6
Weight in Kg 1.045

What's in the Box

What's in the Box: Askar FMA F230 f/5.5 Triplet APO Refractor Telescope with f/4.6 Reducer

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Delivery

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In the case of special order items, the delivery time may be longer. If you have any concerns or questions about the delivery of your item, please don't hesitate to Contact Us. We are here to assist you.

Should there be any delay in dispatching your order, we will notify you to keep you informed.

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