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Pop Quiz: What is your preferred FOV?

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#26 Guest_**DONOTDELETE**_*

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Posted 11 June 2004 - 12:23 PM

Well said Mike. I could hardly agree with you more. It really is a tough issue when you look at cost vs. performance. I myself have flip-flopped often on the decision of getting Oberwerk's BT-100 (with the appropriate mounting) OR using that money to purchase a sweet telescope. I am such a diehard bino user (so far)...and my money account painfully reminds me of that fact.

#27 EdZ

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Posted 11 June 2004 - 02:35 PM

NW,

As I mentioned before, we are not far away. Very soon school is out and my kids will go spend the summer with mom. I invite you to come on down for a night and relish the views thru the BT100s.

I already have about 5 pair of eyepieces. But, I bet if we talked, between us we could double up a few more. Plenty to compare the views to.

edz

#28 Guest_**DONOTDELETE**_*

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Posted 11 June 2004 - 02:55 PM

I would love to do that Ed! This summer will be extra busy for me, but with planning, I could definitely secure a weekend night that's good for both of us. I'll send a private message with my contact information.

Thanks for invitation.

#29 craig_oz_land

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Posted 12 June 2004 - 06:50 PM

Gary,

Aren't AFOV and magnification the only things one has to consider ideally in a "fixed" eyepiece binocular in terms of image scale?

#30 Garfield

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Posted 12 June 2004 - 10:40 PM

Aren't AFOV and magnification the only things one has to consider ideally in a "fixed" eyepiece binocular in terms of image scale?


Hi Craig;

Although a wide AFOV is certainly one of the keys to "esthetically pleasing" views, the TFOV is critical to being able to take in extended objects.

For example, even if I use the widest AFOV 1.25" eyepieces in the Oberwerk BT100, the TFOV is only 2.63° which is not wide enough to take in the Andromeda Galaxy which spans over 3°.

If you play with the math (AFOV=TFOV*MAG), and keep in mind the widest AFOV of most binoculars are in the 66° range, you will quickly discover the limitations of large aperture binoculars for viewing extended objects...which was the reason for my initial post.

Gary


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