BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="Pileatus" data-source="post: 3473036" data-attributes="member: 9609">10X42 SF vs. 10X50 SVSF has more eye relief.SF has a wider FOV.SF has a smoother focus.I've logged several hundred hours on the 10X50 SV and I'm rather comfortable with it. I want the 50mm for night viewing so I'm not interested in replacing it with a 10X42. Also, there's a bit of distortion in the SF that I don't see in the SV. Again, individual eyes will see things differently.The SF initially is a bit overwhelming (in the positive sense) due to its wide FOV, generous eye relief, easy focus and great ergonomics. However, when I studied minute details in various targets, there was nothing in the 10X42 SF that didn't show up in the 10X50 SV. Perhaps I'd think differently after using an SF in the field under various conditions but, for now, there's no reason to jump ship.The SF may hold the edge in CA control. Since I could not carefully measure it I'll just say it looked pretty darn good.</blockquote>