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Be VERY careful buying a scope like that from Ebay. If the 1400 is the focal length, it is probably achieved by placing a fixed barlow in the focuser which is often seen on cheaper low quality scopes. I have looked at the ad you are examining and the price is over $400. This a lot to pay for this. The ad does say it is a catadioptric, but not what type. I would suggest, hold your horses and have a look at Bintel or visit a "proper" telescope retailer before spending that mush cash!
Malcolm
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