Hello all,
I am trying to get into digiscoping with a cheap setup:
I am using a 50mm Leupold compact 15-30x spotting scope. Below are the specs
http://www.leupold.com/hunting-shooting/spotting-scopes/gr-spotting-scopes/gr-15-30x50mm-compact/
My camera is a Sony NEX-5N with the stock OSS 18-55mm (f3.5 to 5.6 min) lense
I am experiencing a hefty amount of vignetting the first picture attached shows my best shot at 15x with the 18-55mm lense zoomed in about half way. excuse the lack of birds
I then tried my mother's 16mm f2.8 OSS lense, see attachment 2 there is more clairty however the vignetting is prominent.
I am thinking about buying a lense to suite my scope the best, however its just trial and error is far as my understanding goes. I know there is a ratio or formula to match camera aperture and scope exit pupil but I wouldn't have a clue how it works.
Which lense size can fix my vignetting problems? I read on another thread someone used a nex5 with a Rokkor 28mm f2.8 and got good results. But how can you even know without testing lenses in person? Input would be appreciated
I am trying to get into digiscoping with a cheap setup:
I am using a 50mm Leupold compact 15-30x spotting scope. Below are the specs
http://www.leupold.com/hunting-shooting/spotting-scopes/gr-spotting-scopes/gr-15-30x50mm-compact/
My camera is a Sony NEX-5N with the stock OSS 18-55mm (f3.5 to 5.6 min) lense
I am experiencing a hefty amount of vignetting the first picture attached shows my best shot at 15x with the 18-55mm lense zoomed in about half way. excuse the lack of birds
I then tried my mother's 16mm f2.8 OSS lense, see attachment 2 there is more clairty however the vignetting is prominent.
I am thinking about buying a lense to suite my scope the best, however its just trial and error is far as my understanding goes. I know there is a ratio or formula to match camera aperture and scope exit pupil but I wouldn't have a clue how it works.
Which lense size can fix my vignetting problems? I read on another thread someone used a nex5 with a Rokkor 28mm f2.8 and got good results. But how can you even know without testing lenses in person? Input would be appreciated