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In my past research I came across a formula for choosing EP's Hope this will help in deciding what to buy. Taking The focal length of your scope if you multiply by 3/4 this result will give you a High Powered EP. Focal length multiplied by 1 1/4 will give a Medium High powered EP Focal length multiplied by 2 will give a Medium Low powered EP Focal length mutiplied by 3 will give a Low powered EP. The chart below gives the example of a 120 mm F5.0 Startravel scope.
Loads of eyepieces for sale - I really need to have a clear out. All prices are for posted in mainland UK. All are either in bolt cases or original boxes. Celestron X-Cel LX 7mm £45 Celestron Omni plossl 6mm £20 Celestron Omni plossl 12mm £20 Meade 4000 26mm £25 Revelation 40mm camera projection eyepiece £30 The following eyepieces are, I am pretty sure, all GSO. They are all the same design. An opportunity to put together a good range at low cost. 6mm £20 9mm £20 15mm £20 20mm £20 Finally, a digiscoping afdapter. Can be used to hold any camera with a standar tripod thread for digiscoping. Like this: https://www.telescopehouse.com/universal-digiscoping-adapter.html £20 Payments to be made by PayPal or bank transfer. Jon
Its a long time since Sept 2008 when I sold my SE8 and all my kit. Just about to join the Light Bucket Dob brigade. Like the Orion 10 xi 10" and f 4.7..... and keep looking at Skywatcher...10-12". 10 might be good enough for me at 69 years old. (Still feel 25). I know I will hate the ep's that come with the Orion... I do fancy it... so what EP,s will go well with an f4.7 10"Dob. I had a Mk 2 Hyperion zoom but one post and a site which I cant remember (69 so forgive me) and they recommend it for more than f5. EP,s on a pension plan replies please. Thanks in advance
Hello, I'm currently using the Skywatcher Skyliner 200P reflector telescope with the 10mm and 25mm EPs that came with it. I have been viewing for a while now and think its time I upgraded the eyepieces. My budget is around £500. I'd like to be able to get a range of EPs that will provide me with wide view and higher magnification viewing (a shorter length, longer length and a barlow (or perhaps a powermate but I dont know much about these other than they are seemingly better than barlows - perhaps a little over budget)). I enjoy both planetary and DSO viewing though if I had a preference it would be the latter. I wear eyeglasses having astigmatism in both eyes so eye relief is important. I mainly view from rural areas but will sometimes get it out in my rather light polluted back garden, so I am flexible with exit pupil size (the maximum being 31/35mm I reckon). There is quite a selection of vendors and I am hoping you folks can help me narrow down my choices with some first hand experience Cheers, Nathan