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Post your 150-600 Tamron shots.
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<blockquote data-quote="grandpaw" data-source="post: 347657" data-attributes="member: 8635"><p>Kevin, I would like to add some information to think about. When you take a Nikon F2.8VR lens and add a 2x teleconverter it will become a F5.6 all the way through from 140mm to 400mm. Now lets compare the Tamron. </p><p></p><p>Nikon F2.8 70-200mm with 2x teleconverter is F5.6 max all the way through.</p><p></p><p>Tamron</p><p>F5 up to about 190mm</p><p>F5.3 up to about 200mm</p><p>F5.6 up to about 250mm</p><p><span style="color: #000000">F6</span> up to about 340mm</p><p>F6.3 from about 340 to 600mm</p><p><span style="color: #b22222">To get these readings I was setting at my computer and pointed the lens toward a lamp on my desk with my camera in aperture priority mode and just started my lens at 150mm and went to 600mm to get these readings. </span></p><p></p><p>A lot of people are concerned about the speed of this lens. You can see that it actually is faster than the Nikon with the 2x teleconverter.</p><p></p><p>Shortly I will be starting a new thread and give you my observations of this lens. It will not be a scientific review because I am not qualified to do that but it will tell you what I have observed about this lens by me using it. I might add that I do also own the Nikon 70-200VR and the 20E III 2X teleconverter.</p></blockquote><p></p>
[QUOTE="grandpaw, post: 347657, member: 8635"] Kevin, I would like to add some information to think about. When you take a Nikon F2.8VR lens and add a 2x teleconverter it will become a F5.6 all the way through from 140mm to 400mm. Now lets compare the Tamron. Nikon F2.8 70-200mm with 2x teleconverter is F5.6 max all the way through. Tamron F5 up to about 190mm F5.3 up to about 200mm F5.6 up to about 250mm [COLOR=#000000]F6[/COLOR] up to about 340mm F6.3 from about 340 to 600mm [COLOR=#b22222]To get these readings I was setting at my computer and pointed the lens toward a lamp on my desk with my camera in aperture priority mode and just started my lens at 150mm and went to 600mm to get these readings. [/COLOR] A lot of people are concerned about the speed of this lens. You can see that it actually is faster than the Nikon with the 2x teleconverter. Shortly I will be starting a new thread and give you my observations of this lens. It will not be a scientific review because I am not qualified to do that but it will tell you what I have observed about this lens by me using it. I might add that I do also own the Nikon 70-200VR and the 20E III 2X teleconverter. [/QUOTE]
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