Esmu šeit jauniņais, ceru ka pareizā sadaļā rakstu.
Man ir jautājums par objektīvu Sigma 17-70 F2,8-4 DC Macro OS HSM. Taisos tuvākās dienās tādu iepirkt un nedaudz mulsina dažādu internetveikalu minētais objektīva aprakstā. Konkrēti tāds punkts kā Manufacturer Part No.
Dažviet tiek minēts 668954, citāsvietās 884954, bet vienā bodē pat abi divi numuri kopā. Es vēl saprastu ka viens būtu Canon otrs Nikon, bet visur tiek minēts ka Canonam domāts.
Zinot mūsu internetbožu cenu starpības pie vienādiem un nevienādiem produktiem bail ka iesmērā veco Sigma 17-70 F2,8-4.5 (kas bez OS). Protams saņemot preci to skatīšos un testēšu bet negribās zaudēt laiku ja atved ne to modeli atkal pasūtīt un gaidīt kad atved īsto.
Varbūt kādam ir konkrētāka informācija par tiem kodiem ?
884954 ir 2012. gada modelis, kas nosaukumā satur vārdu Contemporary (jaunā objektīvu līnija Sigmai)
Jaunais 2012 gada modelis atšķiras no vecās arī pēc izskata un lēcu skaita konstrukcijā. Pēc vairākiem testiem internetā, 2012. gada modelis ir arī optiski un mehaniski kvalitatīvāks.
Ja formālie parametri ir tie,ko Tev vajag, tad visādi citādi ar šo stroķi viss ir kartībā. Pašam ir viena Sigma bijusi, arī znotam ir un savu darbu dara. Re, ko raksta slrgear.com, salīdzinot 2012.g.C versiju ar konkurentiem, tai skaitā "veco" Sigmu:
Sigma 17-70mm ƒ/2.8-4 DC Macro OS HSM ~$400 The obvious point of comparison is the predecessor lens: in this case, Sigma has made remarkable improvements to sharpness, but that's about it. At the time of writing there are still units in stock for purchase, but that will probably not be the case for long: and really, for the extra $100, you can't go wrong.
Canon EF-S 15-85mm ƒ/3.5-5.6 IS USM ~$800 Canon's comparable lens provides both wider and longer focal length options and is just as sharp; however, it's not quite as fast as the Sigma lens (in terms of maximum aperture). As well, it's somewhat more expensive.
Nikon 16-85mm ƒ/3.5-5.6G ED VR DX AF-S ~$700 Nikon's comparable lens is also slightly wider and longer than the Sigma option, but also doesn't provide quite as wide an aperture. The Sigma is slightly sharper, but the Nikon deals with chromatic aberration slightly better.
Pentax 17-70mm ƒ/4 AL IF SDM SMC DA ~$600 Pentax's alternative is also a made-for-APSC solution, but instead of offering a variable aperture, it offers a fixed ƒ/4 aperture. The lens is exceptionally sharp, offering slightly more consistent results than the Sigma, but unless you're peeping very closely, about the same. Chromatic aberration is notable in this lens.
Sony 16-80mm ƒ/3.5-4.5 DT Carl Zeiss Vario-Sonnar T* ~$1000 You certainly pay a premium for the Sony offering in this category, which provides also slightly wider and longer focal length options than the Sigma 17-70mm. However, it's not appreciably better than the Sigma.
Conclusion With the new "Contemporary" 17-70mm ƒ/2.8-4 OS HSM "C", Sigma's created a smart and stylish upgrade to its kit-lens alternative. There's a good recipe for sales here: make it look awesome, and don't jack up the price too much.
