|
I think you'll find the 13 mm Nagler a very useful ep.
I have to say I normally think about eyepieces in terms of magnification and FOV and less about exit pupil. Perhaps because optics has always been a daunting area for my simple mind. So it was very interesting to read Mark's thoughts which I understand to be that using a lower power ep with smaller FOV delivers larger exit pupil (which relates to magnification) and therefor more light. But would this tend to reduce contrast as the background light is also brighter? Any illumination appreciated. Also, does this mean that the eyepiece aficionado has several eyepieces for the same FOV - higher mag ones for detail and contrast and lower mag for brightness. Could get expensive.
|