Quote:
Originally Posted by sejanus
thanks for that
Do you think the 17mm would be worth having, given the very wide FOV of the 13mm ethos?
|
If you can afford the Ethos that's what I would be buying. It has a marginally greater TFOV in your scope at 1.38 deg compared to 1.3 deg for the 17mm Nagler, yet at much greater magnification. 140X as opposed to 105X. This will give a darker sky background, improved contrast and greater detail due to the higher magnification, while still framing the target similarly. The only downside with the Ethos is that it has slightly less eye relief than the 17mm Nagler and is almost impossible to use with glasses on.
For people that don't wear glasses, the eye relief of the Ethos is perfect.
Cheers
John B