Celestron 36 cm RASA Astrograph OTA
Optimally suited for scientific applications such as space surveillance and Space Situational Awareness (SSA), as well as for advanced wide field astrophotography, this Rowe-Ackermann Schnmidt Astrograph is also practical from a cost perspective. This optical system provides fantastic value in terms of speed, aperture, field of view, and overall optical performance. The RASA design features a convenient external location with a flat focal plane for prime-focus image capture, allowing small spot sizes to the outskirts of a wide field resulting in images void of optical blemishes such as field curvature, off-axis coma, and astigmatism.
The 36 cm aperture version is the largest RASA Celestron manufactures. It is both the biggest and fastest (f/2.2) optical instrument of its kind available “off-the-shelf.” Unlike most telescopes, which only focus visible light (400-700 nm), the RASA 36 cm focuses an extended spectral range (400-900 nm), allowing a brighter signal to be detected by a camera sensor. The 36 cm RASA also features a redesigned focus system, which ensures easy and stable focusing.
With a substantial 77.5 mm back-focus, the Celestron 36 cm RASA is compatible with a wide range of imaging sensors. The addition of a custom camera adapter enhances the field of view up to 4.4 degrees.
Additional Features
- Consisting of high transmission multi-coatings for lenses, along with highly reflective aluminum coatings, Celestron’s proprietary XLT coatings enable reliably solid optical system light throughput.
- A built-in cooling fan helps cool down optics to ambient temperature while pulling air through micromesh vents for dust ingress prevention.
- Comes with dual dovetail mounting bars for the ability to mount both an optical tube and additional accessories. Compatible with “CGE/Losmandy” style dovetails.
- A pair of 2x threaded insert hole sets in the rear cell allow even more mounting options.
- Rear cell features carrying handles for convenient optical tube movement.
- Although not normally needed, there are three sets of push-pull screws to adjust the lens group to achieve optical alignment for the entire system.
- M48 camera adapter included.
- Motor system specifically designed for the 36 cm RASA focuser is manufactured by Starlight Instruments.
Fast Shipping and Professional Packaging
Through our long-term relationship with UPS, FedEx, DHL and many other leading global carriers, we are able to offer various shipping options. Our warehouse staff is highly trained and will be able to pack your goods in accordance with our exact and precise specifications. Before shipping, all goods will be thoroughly examined and secured. We deliver to thousands of customers every day across multiple countries. This is a sign of our determination to becoming the largest online retailer on the planet. We have distribution centers as well as warehouses in Europe as well as the USA.
Note: Orders that contain more than one item will be assigned a processing date in accordance with the item.
We will inspect each and every one of the items ordered before shipping. The majority of orders are shipped within 48 hours. The delivery time will be between 3 and 7 working days.
Returns
The inventory is always changing, and not fully managed by us because of the involvement of several different parties, such as the factory and our warehouse. The actual stock levels can fluctuate at any moment. It's possible that your order could be unable to fill after you place the order.
The period of time is 30 days. If you haven't received your product within the 30 days period, we're not able to issue a refund or an exchange.
Your item should be in the original packaging and in good condition. It must also not be used. It should also be in the original package.
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