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optical quality: IOR/NIKON TACTICAL

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/12/2004 at 12:44
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In a 2.5x10 who has the better optic.Brightness,Resolution durability.

 

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/12/2004 at 19:13
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IOR IOR and IOR

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/12/2004 at 20:26
Dale Clifford View Drop Down
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By what standard? Is there some dept. of Scope Brightness or some Bureau of Durability that sets some standards whereby each scope manufac. must comply or they breach some duty not even specified. Does someone who needs a 2 diopter lenses corrections with partial cataracts see one clearer than another. Opps. I forget, perfect vision, perfect scope (concept).
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/12/2004 at 22:36
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"Is there some dept. of Scope Brightness or some Bureau of Durability that sets some standards whereby each scope manufac."

Yeah thats me and any other person that has had a chance to look through a scope. There are different quality scopes. Some will be brighter and some will be more durable. One is usually concerned about these qualities when choosing a scope. No Dept's or Bureau's just personal opinions based on stats and facts of a certain scope.

"must comply or they breach some duty not even specified."

Each scope manufacturer can use there discretion as to how much quality they want to put in a scope. The price tag will usually reflect that quality and can be one way to judge a scope. There's not a law that states a scope has to meat a certain standard or quality.

"Does someone who needs a 2 diopter lenses corrections with partial cataracts see one clearer than another. Opps. I forget, perfect vision, perfect scope (concept)."

Not aware of this concept? What you see through the scope depends on the quality of the scope. Take the IOR and NIKON for instance. If you were to look at both scopes right after each other the IOR will be clearer and brighter than the Nikon.

 

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/13/2004 at 01:46
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Brady - I was told the IOR do not handle TEMPERATURE shifts particularly well. Any comments?.

It is OF MAJOR interest to me - as we can have Daytime temps of 50C (122F) yet drop to below 20C (70F) at night.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/15/2004 at 15:37
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Never heard of this.  What have you heard that failed during temp. changes?  According to IOR their scopes will operate in any weather conditions from -40 to +140 F including high humidity, rain and snow. Construction is airtight.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/15/2004 at 15:39
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Dale,

Feel free to answer the poster's question.  Hearing all sides will help him make a more informed decision.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/17/2004 at 02:55
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Originally posted by Chris Chris wrote:

Never heard of this.  What have you heard that failed during temp. changes?  According to IOR their scopes will operate in any weather conditions from -40 to +140 F including high humidity, rain and snow. Construction is airtight.

Chris, what I heard is that they are TEMPERATURE SHIFT SENSITIVE. From what I gleaned (I'm carefull to delouse) - They are prone to focusing issues if moved HOT to COLD or reverse. Once they've aclimatised then they seem to return to where they should be. But I do not have first hand experience and tehre's a language translation issue in the communication.

I am concerned as I've had isssues here in the Spanish Summer - Air temps are one thing but metal temps are another. And with LESSER makes I have seen similar issues.  ie. Take an aclimatisied (in the shade) scope into an area with HOT SUN - and WATCH the image go fuzzy - then SLOWLY snap back in. I GUESS (I DONT KNOW) its because the outer tubes heat up and expand - Then slowly the inner components (erector tubes etc) warm up too and everything is OK.

I was about to part with money for a 6-24*50  when I heard the temp news.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/17/2004 at 20:51
Dale Clifford View Drop Down
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One manufacturer does not use the same quality control or even design criteria of another, thus comparing scopes from different manufactures is the same as comparing chevies and fords. Great for coffee tables but not much use. While the price does reflect the technology frontier, it is much more pronounced in the lower price scopes, which in the last few years have shown more improvement than the higher price scopes, more bang for the buck. It is impossible to get more than a 3 power magnification in a 1 inch tube but some manufacteres continually advertise this without telling the buyer their % of error is 10%. If one person sees ascope brighter or with more resolution than another it simpley means, unless a controlled measurement is taken, that the linear transfer frequencies of the observers eyes are different than another. If anyone is interested in the math to this please let me know and I'll send,

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/21/2004 at 15:15
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Would love to see the math....please post it.
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