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Binoculars & Spotting Scopes
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Canon
Canon 8x25 IS brief test
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<blockquote data-quote="kabsetz" data-source="post: 3142942" data-attributes="member: 10167"><p>David,</p><p></p><p>I can PM you on this also, but can just spell out here the main features I have in mind. I have the Edmunds 1951 USAF ES Magnifier Quality Resolution Chart as well as the Edmunds USAF glass slide as bar targets, and indoors cannot easily get to a distance greater than 11 meters. So the simplest way would be 10 or 11 meters distance, tripod, hand-held and, for me, stabilized hand-held. I would suggest focussing and setting the diopter first with the binocular on the tripod, then taking a rest and drinking a cup of coffee, and then doing the hand-held resolution evaluation viewing with both eyes simultaneously at exactly the tripod distance and without adjusting either the focus or the diopter that were set on the tripod, but allowing yourself to move slightly away or towards to optimize the focus if needed. Then another short break, and then the testing on the tripod, again without touching either the focus or the diopter. For the hand-held test, I'd like to suggest a time limit, such as 1 or 2 minutes, but am open to suggestions on this. Between these two, and with another break in between, I'd do the IS engaged testing, with the same time limit. I can duplicate the procedure with a Nikon 10x42 SE and a 10x50 CZJ Jenoptem, all of which I own. Feel free to suggest modifications and improvements on this protocol, this is just intended as a start.</p><p></p><p>Kimmo</p></blockquote><p></p>
[QUOTE="kabsetz, post: 3142942, member: 10167"] David, I can PM you on this also, but can just spell out here the main features I have in mind. I have the Edmunds 1951 USAF ES Magnifier Quality Resolution Chart as well as the Edmunds USAF glass slide as bar targets, and indoors cannot easily get to a distance greater than 11 meters. So the simplest way would be 10 or 11 meters distance, tripod, hand-held and, for me, stabilized hand-held. I would suggest focussing and setting the diopter first with the binocular on the tripod, then taking a rest and drinking a cup of coffee, and then doing the hand-held resolution evaluation viewing with both eyes simultaneously at exactly the tripod distance and without adjusting either the focus or the diopter that were set on the tripod, but allowing yourself to move slightly away or towards to optimize the focus if needed. Then another short break, and then the testing on the tripod, again without touching either the focus or the diopter. For the hand-held test, I'd like to suggest a time limit, such as 1 or 2 minutes, but am open to suggestions on this. Between these two, and with another break in between, I'd do the IS engaged testing, with the same time limit. I can duplicate the procedure with a Nikon 10x42 SE and a 10x50 CZJ Jenoptem, all of which I own. Feel free to suggest modifications and improvements on this protocol, this is just intended as a start. Kimmo [/QUOTE]
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Canon 8x25 IS brief test
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