dawson Posted September 9, 2012 Share Posted September 9, 2012 Is there a way to magnify the image between my telescopes mirrors and the dslr's detector? When I connect my canon eos 600d to the skywatcher 127 there are no telescope or camera lenses between the two. Thanks, James Link to comment Share on other sites More sharing options...
Guest JohnC Posted September 9, 2012 Share Posted September 9, 2012 You can use a barlow lens to increase mag. Link to comment Share on other sites More sharing options...
Doc Posted September 9, 2012 Share Posted September 9, 2012 Yep a barlow to increase and a reducer to decrease. Link to comment Share on other sites More sharing options...
Guest Kheldar Posted September 9, 2012 Share Posted September 9, 2012 Though barlowing a DSLR is typically a bad idea as it makes the scope twice as slow! f4 becomes f8 f6 becomes f12 Link to comment Share on other sites More sharing options...
dawson Posted September 9, 2012 Author Share Posted September 9, 2012 How does it make the scope "slow"? When my camera is connected to the tekescope, how do I alter the appature (f number), as there is no canon lens connected to the camera. James I'm planning to give it a go taking video with the dslr and a barlow of Jupiter, then converting the ^.mov converted to ^.avi or ^.mpg so I can registax it. James Link to comment Share on other sites More sharing options...
Doc Posted September 9, 2012 Share Posted September 9, 2012 Say for example your scope is a F10, you then add a x2 barlow and it becomes a f20 scope. But it then becomes twice as slow as in takes twice as long to let in the same amount of light as your F10 scope. Link to comment Share on other sites More sharing options...
dawson Posted September 9, 2012 Author Share Posted September 9, 2012 Ah, I see what you mean. Well I'll try a few runs with different settings, with and without the barlow. James Link to comment Share on other sites More sharing options...
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