Just posted: Sigma 16-300mm F3.5-6.7 DC OS Contemporary Lens Review As I said before, this lens is all about convenience. Please share! Support this site by ordering the Sigma 16-300mm F3.5-6.7 DC OS Contemporary Lens (or anything else) from B&H | Adorama | Amazon | WEX | Came...
Still too big for me as I'd rather have a smaller small companion camera than one with an EVF. And there's no small 11-22mm lens for it either. I'd rather carry my R with the 16mm lens on it than an APS-C camera with either of the EF-S wide zooms mounted. Reply Reply with...
For clarity's sake by same job I mean same diagonal aov, same DOF/subject isolation and same total light gathering. For example an F/1.2 lens on m43 does the same job as an F/2.4 lens on FF . I can't find an exact F/2.4 lens to match the effective focal length of the F/1.2...
Maori people in New Zealand as an 38.LivingA.Red.B.Blue.by the ocean,they see whales as guardians(守t护C.Grey.D.Black.of the ocean and talk about them a lot in their()28.What does the underlined word "sensitive"39 stories.probably mean in Paragraph 2?Why was I interested in ...
What does endotyping mean for treatment in chronic obstructive pulmonary disease? Lancet. 2017;390:980–7. Article PubMed Google Scholar Hekking PP, Wener RR, Amelink M, Zwinderman AH, Bouvy ML, Bel EH. The prevalence of severe refractory asthma. J Allergy Clin Immunol. 2015;135:896–...
What does "boomerang kids" mean?组成建设工程施工合同的文件包括：①中标通知书，②投标函及其附录，③合同协议书，④通用合同条款，⑤专用合同条款，⑥图纸，⑦已标价工程量清单，等等。若专用合同条款无另外约定，则解释合同文件的优先顺序是（）。
Why does lens speed matter? Fast lenses come with two main advantages: 1. Fast lenses allow you to use fast shutter speeds A fast lens offers a wide aperture, and a wide aperture lets in more light – so you can capture well-exposed photos while using a fastershutter speed(compared to ...
The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful.If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living. Of course...
Does this mean that there’s life in all of these alien oceans though? Maybe, maybe not. If we find life (in even a very simple form) on Europa, but not anywhere else, we’ll know life is totally possible under certain, if very different, conditions than the idealistic Earth . If ...
If the bob on the bottom of a 22cm pendulum traces a 9.5cm arc on each swing, through what angle (in degrees) does the pendulum rotate on each swing? A 90 kg object is sliding on a frictionless horizontal surface at a constant velocity of 3.2 m/s....