Photozone’s Markus Stamm calls it “an attractive. option for DX shooters looking for a dedicated macro lens. It’s rather light-weight and compact, delivers very sharp images wide open. All this comes with the added bonus of Nikon’s VR II optical stabilization.” Jim Fisher of PCMag, noting a bit of barrel distortion writes, “When it all shakes out, the barrel distortion is a quibble that won’t be noticeable in most images, and there’s no questioning the detail that can pick up. Roger Cicala, Sigma 35mm f/1.4 DG HSM A1 for Sony, LensRentals.Home Donate New Search Gallery Reviews How-To Books Links Workshops About Contact Markus Stamm, Micro Nikkor AF-S DX 85mm f/3.5 G ED VR - Review / Test Report, PhotozoneĬhris Gampat, Review: Sigma 18-35mm f1.8, The Phoblographer, July 16, 2013Įrez Marom, Macro Photography: Understanding magnification, DPReview, NovemJim Fisher, Nikon AF-S Nikkor 85mm f/1.8G, PCMag, MaGary Wolstenholme, Sigma 10-20mm f/3.5 EX DC HSM Interchangeable Lens Review, ePHOTOzine, April 26, 2010Ĭhris Gampat, Review: Nikon 85mm f1.8 G, The Phoblographer, ApGordon Laing, Nikkor AF-S VR 70-300mm f/4.5-5.6 G IF-ED, Camera LabsĪndrew Alexander, Sigma 10-20mm f/3.5 EX DC HSM, Imaging Resource, SeptemNikon 70-300mm f/4.5-5.6G IF-ED VR AF-S Nikkor, Imaging Resource Szymon Starczewski, Nikon Nikkor AF-S 70-300 mm f/4.5-5.6G IF-ED VR, MaGordon Laing, Nikkor AF-S DX 35mm f/1.8G, Camera LabsĪndy Westlake, Nikon AF-S Nikkor 35mm 1:1.8G DX review, DPReview, Maand it balances well on smaller Nikon SLRs.” Thomas at Camera Labs concludes, “Nikon’s Micro-Nikkor 85/3.5 is a very competent macro lens: it’s the cheapest stabilized macro-lens you can buy and it delivers very good performance with sharp images center to corner albeit with somewhat reduced contrast when wide open.” Noting that the best results are found at apertures of f/5.6 and narrower, he writes, “you should not worry too much about that: with larger magnifications you normally have to stop down to get a decent depth of field.”Īndy Hendriksen, What’s In My Bag: Andy Hendriksen Edition, The Phoblographer, FebruThe lens doubles as a short telephoto prime when working with non-macro subjects. Intro Specs Performance Compared Usage Recommendations MoreĪF-NIKKOR 35mm f/2D ( FX, DX and 35mm coverage, 52mm filters, 7.0 oz./200g, about $360 new or $330 ( gray-market) or about $225 used if you know How to Win at eBay). 6-sided prism ending in 6-sided pyramid (typical)Ģ.65 constant variable in impure varietiesĪmethyst is a purple variety of quartz often used as an ornament. The name comes from the Greek a ("not") and methustos ("to intoxicate"), a reference to the belief that the stone protected its owner from drunkenness the ancient Greeks and Romans wore amethyst and made drinking vessels of it in the belief that it would prevent intoxication.Īmethyst is the purple variety of quartz, its chemical formula is SiO 2. In the 20th century, the color of amethyst was attributed to the presence of manganese. However, since it is capable of being greatly altered and even discharged by heat, the color was believed by some authorities to be from an organic source. Ferric thiocyanate was suggested, and sulfur was said to have been detected in the mineral. More recent work has shown that amethyst's coloration is due to ferric iron impurities. Further study has shown a complex interplay of iron and aluminium is responsible for the color. On exposure to heat, amethyst generally becomes yellow, and much of the citrine, cairngorm, or yellow quartz of jewelry is said to be merely "burnt amethyst." Veins of amethystine quartz are apt to lose their color on the exposed outcrop. Synthetic amethyst is made to imitate the best quality amethyst. Its chemical and physical properties are so similar to that of natural amethyst that it cannot be differentiated with absolute certainty without advanced gemological testing (which is often cost prohibitive). There is one test (which is not 100 percent certain) based on "Brazil law twinning" (a form of quartz twinning where right and left hand quartz structures are combined in a single crystal which can be used to identify synthetic amethyst rather easily. In theory however it is possible to create this material synthetically as well, but this type is not available in large quantities in the market. CompositionĪmethyst is composed of an irregular superposition of alternate lamellae of right-handed and left-handed quartz. It has been shown that this structure may be due to mechanical stresses.
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