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| Nikon introduces 24-70mm F2.8 VR, 24mm F1.8 and 200-500 F5.6 FX lenses - Page 2 | |
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| Posted: Sun Aug 30th, 2015 12:36 |
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11th Post |
jk
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Yes the new 200-500mm AFS VR is constant aperture f5.6. This will mean that it will not focus as fast as my Nikon 400mm f2.8 AFS.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Sun Aug 30th, 2015 14:53 |
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12th Post |
Eric
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jk wrote:Yes the new 200-500mm AFS VR is constant aperture f5.6. I have never understood WHY primes should be faster focusing than zooms?
____________________ Eric |
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| Posted: Sun Aug 30th, 2015 15:15 |
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13th Post |
Gilbert Sandberg
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Eric, re: why Theoretically, as AF systems need light and contrast: -any zoom will have (due to more elements in the lens) have less contrast -most zooms do not have the same max. aperture as some primes Regards, Gilbert
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| Posted: Sun Aug 30th, 2015 15:25 |
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14th Post |
jk
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Exactly as Gilbert says...... If a lens captures more light (max aperture) then it can allow the AF module to work more quickly and effectively.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Mon Aug 31st, 2015 11:34 |
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15th Post |
amazing50
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You can also turn on the focus assist light.
____________________ There is nothing worse than a sharp image of a fuzzy concept ;~) Mike Grace |
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| Posted: Mon Aug 31st, 2015 13:06 |
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16th Post |
Gilbert Sandberg
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A, re: turn on the focus assist light. Alas, most users on this forum use single-digit Nikons (no flash or focus light), and even then: that light works only in some limited circumstances. Regards, Gilbert
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| Posted: Mon Aug 31st, 2015 16:49 |
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17th Post |
jk
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First thing I recommend to anyone who uses any camera with a focus assist light is to switch it off. If you want to focus accurately on a subject then you need to either provide sufficient light to the camera AF module and/or light the subject adequately. If you light the subject with a video or continuous light then the focusing is fast and you also get better images.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Mon Aug 31st, 2015 17:00 |
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18th Post |
Eric
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Gilbert Sandberg wrote:Eric, Thank you. I suppose whilst I recognised that those differences influence the ability to lock on focus or not.... yes or no....black or white, I had never considered that the 'speed' of that focus acquisition was part of the process. I guess it's logical that it's all related.
____________________ Eric |
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| Posted: Tue Sep 15th, 2015 06:08 |
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19th Post |
jk
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A review here. http://www.cyberphoto.se/info.php?article=200500vr
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Tue Sep 15th, 2015 06:13 |
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20th Post |
jk
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Translation of some of the text. Nikon 200-500 against Sigma and Tamron 150-600 zooms Size-wise, the Nikon 200-500 more on par with the cheaper versions of Tamron and Sigma, ie, a smaller and lighter optics to secure more often bring with them, and would rather use the free hand than the Sigma 150-600 Sports. But the price and performance is Nikon's more on par with sports variant, however, the step of the image quality, stabilization and autofocus function. Also compared the Sigma 150-600 C including Sigma converter TC-1401 and the Nikon 200-500 including Nikon Converter TC-14E ​​III, and this difference becomes even more clearly to the advantage of Nikon, which also depends on the Nikon converter is sharper (but fits unfortunately not at all on Sigma optics, and Sigma 1401 is only compatible with their own lenses). Plus + Good sharpness over the entire zoom range at full opening + Excellent sharpness at f / 8 at all focal lengths + Negligible chromatic aberration + Low Distortion + Very effective stabilization + Fixed aperture of f / 5.6 across the zoom range + Autofocus quieter than usual + Autofocus quickly and accurately (Nikon D810) + A sturdy tripod mount included + Lens Hood Included + Performs well with Nikon's teleconverter TC-14E ​​III + Low price in view of its performance and image quality Less - Grows in length during zooming (just like other similar telephoto zooms) - Relatively large, heavy (just like other similar telephoto zooms) Nikon 200-500 against Sigma and Tamron 150-600 zooms Size-wise, the Nikon 200-500 more on par with the cheaper versions of Tamron and Sigma, ie, a smaller and lighter optics to secure more often bring with them, and would rather use the free hand than the Sigma 150-600 Sports. But the price and performance is Nikon's more on par with sports variant, however, the step of the image quality, stabilization and autofocus function. Also compared the Sigma 150-600 C including Sigma converter TC-1401 and the Nikon 200-500 including Nikon Converter TC-14E ​​III, and this difference becomes even more clearly to the advantage of Nikon, which also depends on the Nikon converter is sharper (but fits unfortunately not at all on Sigma optics, and Sigma 1401 is only compatible with their own lenses). Conclusion With the new AF-S 200-500 / 5,6g ED VR Nikon shows where furniture should go! This lens is in my opinion the most affordable and best performing super-telephoto zoom, in writing, with slightly better image quality and better autofocus and stabilization than others. Also gives more useful results with the 1.4x converter (which of course also the TC-14E ​​III, the converter has a significant role).
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| This is topic ID = 1218 Current time is 11:42 | Page: 1 2 3 | |
| Nikon DSLR Forums > Camera and Lens Forums > Lenses > Nikon introduces 24-70mm F2.8 VR, 24mm F1.8 and 200-500 F5.6 FX lenses | Top | |
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