Manuel,
Many of the mirror lenses only require a 'visual back' in order to use an eyepiece. This is just a simple screw-on adapter in most cases. You then use an ordinary telescope camera adapter (available from almost any telescope retailer for about $25-$35) with an eyepiece held inside it, such that the eyepiece and camera's lens are as close to each other as possible. This is called 'afocal' photography. You can also spend more money and get a specialized eyepiece with a screw-on adapter from Scopetronix and other companies. You may run into other issues with this method (e.g. vignetting), but this may be your only choice with a fixed lens camera. If you've got a digital SLR, then you can attach the camera directly (without a lens) to the mirror lens.
In general though, I wouldn't invest a great deal of money in this. You can buy a small ED refractor these days for $400-$500 or less and you'll likely have better results overall with a small refractor than you will with a fast mirror lens that has a large central obstruction. If I were you, I'd keep my eyes open for a used Orion 80ED or Celestron 80ED scope.
Best of luck!
Tim
Many of the mirror lenses only require a 'visual back' in order to use an eyepiece. This is just a simple screw-on adapter in most cases. You then use an ordinary telescope camera adapter (available from almost any telescope retailer for about $25-$35) with an eyepiece held inside it, such that the eyepiece and camera's lens are as close to each other as possible. This is called 'afocal' photography. You can also spend more money and get a specialized eyepiece with a screw-on adapter from Scopetronix and other companies. You may run into other issues with this method (e.g. vignetting), but this may be your only choice with a fixed lens camera. If you've got a digital SLR, then you can attach the camera directly (without a lens) to the mirror lens.
In general though, I wouldn't invest a great deal of money in this. You can buy a small ED refractor these days for $400-$500 or less and you'll likely have better results overall with a small refractor than you will with a fast mirror lens that has a large central obstruction. If I were you, I'd keep my eyes open for a used Orion 80ED or Celestron 80ED scope.
Best of luck!
Tim
