neil groves Posted March 8, 2014 Share Posted March 8, 2014 Can anyone tell me if the pleiades will fill the FOV of a William Optics 2013 ZenithStar 71mm at 400mm ? or would a 600mm focal length be better?Neil. Link to comment Share on other sites More sharing options...
Leveye Posted March 8, 2014 Share Posted March 8, 2014 My 560mm SV80ED is perfect for that DSO. 600mm or 400mm would still give you plenty of composition room. Don't forget you can crop in post.This is at 560mm and just slightly cropped using a full frame dslr.And this is at 420mm and just cropped slightlyYou can use a program like Stellarium and input your scope's focal length and camera sensor's pixel size to predetermine what you'll get before you start imaging. Works great for composing as well. Link to comment Share on other sites More sharing options...
swag72 Posted March 8, 2014 Share Posted March 8, 2014 Why not use a field of view calculator such as this one http://www.12dstring.me.uk/fovcalc.php Link to comment Share on other sites More sharing options...
Langy Posted March 8, 2014 Share Posted March 8, 2014 Not a very good image but this was with my EOS 300D at 300mm. It may have been cropped a little. Link to comment Share on other sites More sharing options...
todd8137 Posted March 8, 2014 Share Posted March 8, 2014 Hi Neil take a look here select your scope and select a ep http://www.12dstring.me.uk/fov.htmPat Link to comment Share on other sites More sharing options...
todd8137 Posted March 8, 2014 Share Posted March 8, 2014 Ps click to change between ep and camera you can put stuff in manual Link to comment Share on other sites More sharing options...
neil groves Posted March 8, 2014 Author Share Posted March 8, 2014 Thanks Todd. Link to comment Share on other sites More sharing options...
lensman57 Posted March 8, 2014 Share Posted March 8, 2014 Hi Neil,What is the size of the sensor? If you are using a DSLR then the whole M45 will fit in the FOV of 182 X 121 arcminutes.Regards,A.G Link to comment Share on other sites More sharing options...
neil groves Posted March 9, 2014 Author Share Posted March 9, 2014 yes but I want it to FILL the FOV so I don't have to crop too much and lose image quality.Neil. Link to comment Share on other sites More sharing options...
lensman57 Posted March 9, 2014 Share Posted March 9, 2014 yes but I want it to FILL the FOV so I don't have to crop too much and lose image quality.Neil.It fills the frame of my Atik 428EX using my ZS71 and the MK6 FF/FR.A.G Link to comment Share on other sites More sharing options...
Alien 13 Posted March 9, 2014 Share Posted March 9, 2014 This was a quick 20 second single frame with the WOZS71 to give an idea of scale uncropped with canon DSLR.Alan Link to comment Share on other sites More sharing options...
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