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Offline Bama76

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red dot field of view question
« on: August 05, 2004, 05:29:44 PM »
How do the manufacturers determine the field of view of red dot scopes ? It seems to depend on the distance from the eye for any particular make of scope. Do they use a standard 3" eye relief (for a rifle scope)or what ? How can a low power rifle scope have more field of view than a zero power scope ? Is it a fish-eye lens type of thing ? Thanks for the help guys.

Mike
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Offline KN

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red dot field of view question
« Reply #1 on: August 05, 2004, 05:53:18 PM »
Red dots don't have any magnification so there is not any field of view to speak of. The principal behind a red dot is that you shoot with both eyes open, concentrating on your target only. If you are doing it correctly you wont even see the scope body itself. It will just appear as a red dot standing out in space. I hope I have described it correctly enough to give you an idea how it works.  KN
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Offline Bama76

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red dot field of view question
« Reply #2 on: August 07, 2004, 04:38:44 AM »
I understand what you are saying but nearly all manufactureres have a listed field of view for their red dot scopes. It's really a  purely technical question not a how to. Sorry I wasn't more specific. Thanks for the reply.

Mike
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Offline WV1%er

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Red Dot
« Reply #3 on: August 07, 2004, 05:37:06 AM »
Reading this post, prompted me to dig out a couple of guns with red dot scopes. I have an Aimpoint red dot w/ 3x power attatchment. It lists the field of view at 100 yards: 8.9 yards....100 m 8.9 m  Just out of courisoty I unscrewed the attatchment and looked through it, and I could see the rather large hooded front site on the gun, which is not visable with the 3x tube screwed on. I think this proves something, besides I couldn't use it w/o the attatchment, but am not sure what?

   1%er
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Offline KN

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red dot field of view question
« Reply #4 on: August 10, 2004, 01:28:28 PM »
I wasn't aware that any power attachments were being offered in red dots. I know the early Tasco's had a 2x adapter that was discontinued after a short time. Seems it screwed up the way it worked. With a power attachment you would definitely have some sort of FOV limitations so my reply wasn't very good. KN
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Offline Pookee

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red dot field of view question
« Reply #5 on: August 10, 2004, 01:53:12 PM »
Field of view on a non magnifying optic would be proportional to the distance from the eye.

George
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Offline Bama76

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let me rephrase the question
« Reply #6 on: August 11, 2004, 03:59:14 PM »
What is the "industry standard" eye relief for determining FOV of a red dot?

Mike
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