Celestron’s deluxe tele-extender is a high-power photographic accessory for Schmidt-Cassegrain telescopes. It’s a hollow tube that allows you to attach a camera to your telescope with an eyepiece installed. By using the Deluxe Tele-Extender in combination with an eyepiece, you can increase your telescope’s effective focal length to well over 10,000mm! And with this comes a corresponding increase in image size.
It’s a technique known as eyepiece projection photography, and it multiplies magnification by the distance from eyepiece center to the film plane, according to the following formula:
Effective Focal Length = Telescope focal length ? Eyepiece focal length X DF (distance to film).
The deluxe tele-extender is used for high-power lunar, solar and planetary photography as well as for extreme terrestrial photography. To employ the tele-extender, remove the diagonal from your telescope and insert an eyepiece directly into the visual back. Place the Tele-Extender over both the eyepiece and the visual back and attach your 35mm SLR camera to the back of the tele-extender, using a T-ring. That puts you in business for fine, highly magnified astrophotography!
Note: The image you’ll see through your camera’s viewfinder will be upside-down. And, because of the extremely high magnifying effect afforded by the deluxe tele-extended, you’ll want to take extra care to prevent camera and telescope vibration. Accurate polar alignment and using only under good seeing conditions will also help you capture high-quality images.
The deluxe tele-extender is only for Schmidt-Cassegrain telescopes!
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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