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Binoculars & Spotting Scopes
Binoculars
sub-$500 8X42s
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<blockquote data-quote="typo" data-source="post: 3508907" data-attributes="member: 83808"><p>Maico,</p><p></p><p>Most mid range binoculars have an effective resolution around 50-55 arcseconds. Average visual acuity is around 90 arcseconds with the best around 60. Sharpness is assigned to the spatial frequency where we can most readily recognise and interpret detail and that is usually in the 300 to 600 arcsecond range. The clarity of recognisable shapes and definition of things like bark textures speaks to the sharpness characteristics of binoculars. In mid priced binoculars this is a more random characteristic than resolution it seems. What works best for the individual with depend on not only the binocular but also the ambient light and things like the transmission profile of the eye and other factors. It is quite certain that others will see things differently to you or I.</p><p></p><p>As far as I can see the kikkertspesialisten 'test' is nothing more than a sales brochure. A quick glance at the resolution values (opplosing) values will tell you it's nonsense. I tested a lot of binoculars and the effective resolution of many of those cheaper models will often match the premium ones. The companies use the same resolution standard. I don't suppose they would sell many of their most expensive models if they published that.</p><p></p><p>In my opinion the colour rendition and contrast were better on the M7 than the Terra when I compared them, which has implication for other properties like low light performance which I haven't compared. I felt the mechanical components on the M7 were more sophisticated and better made. The Terra is one binocular where I can readily spot differences in effective resolution. I wonder if they have used the lower ISO 14133-1 standard for this model. Having said that, a couple out of perhaps the dozen I've tried were actually pretty good. It is a popular models and quite clearly many are quite happy with it.</p><p></p><p>Where what is made is getting very complex in the binocular world. For example, probably the biggest manufacturer in the world is Kamakura with factories in Japan and China. They source glass and other materials from America, Germany, Japan, China and probably others. They make components and assemble them in which ever country their clients dictate and ship them either complete, or part assembled so that a "Made in Germany" label can be attached. </p><p></p><p>Jerry,</p><p></p><p>The Monarch HG was at the UK Birdfair last August. I suppose I spent about 40 minutes with it over a couple of visits, including a 10 minute comparison with the EDG. It seems very slow crossing the pond which makes me wonder if things might have been tweaked in the interim. I hope so.</p><p></p><p>I suspect the focal hysteresis was neither a mechanical or resolution issue.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="typo, post: 3508907, member: 83808"] Maico, Most mid range binoculars have an effective resolution around 50-55 arcseconds. Average visual acuity is around 90 arcseconds with the best around 60. Sharpness is assigned to the spatial frequency where we can most readily recognise and interpret detail and that is usually in the 300 to 600 arcsecond range. The clarity of recognisable shapes and definition of things like bark textures speaks to the sharpness characteristics of binoculars. In mid priced binoculars this is a more random characteristic than resolution it seems. What works best for the individual with depend on not only the binocular but also the ambient light and things like the transmission profile of the eye and other factors. It is quite certain that others will see things differently to you or I. As far as I can see the kikkertspesialisten 'test' is nothing more than a sales brochure. A quick glance at the resolution values (opplosing) values will tell you it's nonsense. I tested a lot of binoculars and the effective resolution of many of those cheaper models will often match the premium ones. The companies use the same resolution standard. I don't suppose they would sell many of their most expensive models if they published that. In my opinion the colour rendition and contrast were better on the M7 than the Terra when I compared them, which has implication for other properties like low light performance which I haven't compared. I felt the mechanical components on the M7 were more sophisticated and better made. The Terra is one binocular where I can readily spot differences in effective resolution. I wonder if they have used the lower ISO 14133-1 standard for this model. Having said that, a couple out of perhaps the dozen I've tried were actually pretty good. It is a popular models and quite clearly many are quite happy with it. Where what is made is getting very complex in the binocular world. For example, probably the biggest manufacturer in the world is Kamakura with factories in Japan and China. They source glass and other materials from America, Germany, Japan, China and probably others. They make components and assemble them in which ever country their clients dictate and ship them either complete, or part assembled so that a "Made in Germany" label can be attached. Jerry, The Monarch HG was at the UK Birdfair last August. I suppose I spent about 40 minutes with it over a couple of visits, including a 10 minute comparison with the EDG. It seems very slow crossing the pond which makes me wonder if things might have been tweaked in the interim. I hope so. I suspect the focal hysteresis was neither a mechanical or resolution issue. David [/QUOTE]
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Binoculars & Spotting Scopes
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sub-$500 8X42s
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