Goods can be purchased
- directly from our offices
- online
- on takealot.com
- or loot.co.za
First floor
44 The Avenue, The Gardens, Johannesburg, South Africa
Office Hours
Monday to Friday
9 a.m. to 5 p.m.
Saturday and Sunday
Closed
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This Askar FRA Quintuplet series telescope is a premier portable astrograph designed to deliver quality flat frame images and crisp star shapes during astrophotography sessions. FRA, which stands for "Flat-Field Refractive Astrograph" provides built-in flat field correction. Askar has utilized a Petzval-like quintuplet design, with one lens made of special ED glass on this 60 mm f/5 refracting optical tube with a 300 mm focal length. This eliminates the need to calculate backfocus as long as the focus is within a certain range. Using a design similar to Petzval also means the optical tube is excellent at controlling and diminishing chromatic aberration. The fully-multi coating effectively removes stray light and reduces peripheral light at full-frame. The image circle of the FRA300 Pro is 44 mm full-frame and the f/5 focal ratio helps reduce the exposure time.
The FRA300 Pro Quintuplet has a 2.5" rack-and-pinion focuser with dual-speed hand knobs: one for coarse and the other for 1:10 fine focus adjustment. The end of the OTA is equipped with a 360° rotator so users can rotate a camera to any orientation when imaging. The focuser design is both solid and aesthetically pleasing and comes equipped with a universal M48x0.75 thread adapter. This kit comes with two additional separate adapters, an M54x0.75 adapter and an M48x0.75 adapter, making it easy to connect a variety of different user-supplied accessories.
The FRA300 Pro refractor optical tube is assembled from high-quality CNC machined components that have a smooth spray coating and light oxidation process. Included with the 60 mm FRA300 Pro astrograph is a tube ring, red anodized to match the FRA300 Pro astrograph body. Also included is a 300 mm Vixen-style dovetail, also designed to match the OTA coloring, and a multi-purpose handle that can accept a Vixen-style finder base (sold separately). These are incredibly convenient features when it comes to the organization of your accessories and mounting your OTA to get the most out of your sessions.
Novel Quintuplet Optical Design
The Askar FRA300 Pro features optics configured in a five-element, fully multi-coated, 3+2 quintuplet design. The front lens group includes one lens made of extra-low dispersion (ED) glass to reduce chromatic and other aberrations. The back lenses are far-separated and air-spaced to improve star image quality, as well as reduce peripheral light in full-frame.
Several Helpful Accessories Included
Along with the optical tube, the FRA300 Pro comes with a tube ring with a multifunctional carrying handle. The handle can connect to a universal vixen-style finderbase (sold separately) to attach additional accessories. Also included is a vixen-style dovetail plate and three adapter rings: one M42x0.75, one M48x0.75, and one M54x0.75. A manual is also included.
Established in 1991, GIT has prided itself on providing our customers with personalised service and support for over 30 years.
We import and supply a Range of Astrophotographic, Optical, an d Audio products to our customers. All products are supported locally by ourselves.
Not sure about buying online? Feel free to set up a time to meet at our offices in Norwood Johannesburg where we can discuss and assist with your buying decision.
Thank you Laurence, the unit works very well with the speaker arrangement I have and has a clear sound, it has brought new life to these since my amp blew many years ago. Vaughan
Online-sales
Graphic Image Technologies (Pty) Ltd
GIT was established in 1991. We provide solutions to the broadcast and security markets.
We offer a range of quality Astrophotography, Optics and Audio Amplifier solutions. Please feel free to contact us should you have any questions.
More information is available on our main website at: https://www.git.co.za
Goods can be purchased
- directly from our offices
- online
- on takealot.com
- or loot.co.za
Office Hours
Monday to Friday
9 a.m. to 5 p.m.
Saturday and Sunday
Closed