query: How can I control the aperture of a Nikon G lens when using extension tubes?
positive_passages.docid: 26351
positive_passages.text: What macro techniques offer an alternative to expensive optics?
negative_passages.docid: 12994
negative_passages.text: Is it physically possible to build a long zoom (17-300 mm for example) at an aperture value of around 1.4 or 1.2?
negative_passages.docid: 21523
negative_passages.text: How can aperture be f/11 on a lens with an aperture range designation of 3.5-5.6?
negative_passages.docid: 73871
negative_passages.text: Why do I get the "Press Shutter Release Button Again" error when my D3200 isn't set to max. aperture?
negative_passages.docid: 11548
negative_passages.text: How can I make a camera the active one?
negative_passages.docid: 93638
negative_passages.text: How can I get the most possible depth of field out of close-up/macro shots?
negative_passages.docid: 141771
negative_passages.text: What is the benefit of a wide-aperture lens if you stop it down?
negative_passages.docid: 145622
negative_passages.text: How do constant aperture zoom lenses work?
negative_passages.docid: 111238
negative_passages.text: Can you extend a Canon Rebel T5's exposure length?
negative_passages.docid: 56885
negative_passages.text: How to take pictures from the GE?
negative_passages.docid: 6544
negative_passages.text: How do zoom lenses restrict their widest aperture at the telephoto end?
negative_passages.docid: 9033
negative_passages.text: What is aperture, and how does it affect my photographs?
negative_passages.docid: 40309
negative_passages.text: Glass acting as a lens?
negative_passages.docid: 119946
negative_passages.text: I need an adjustment layer which will invert in the same way as when you select some text in a text layer
negative_passages.docid: 79092
negative_passages.text: How do I modify a GPUImageGaussianSelectiveBlurFilter to operate over a rectangle instead of a circle?
negative_passages.docid: 91826
negative_passages.text: How do I install the Ask Ubuntu Unity Lens, and how do I use it?
negative_passages.docid: 112891
negative_passages.text: Why does the max aperture change when use Nikon 60mm AF-D Micro on D90 camera?