Best Photo Downloads. Focus Stacking - a macro photography technique. Focusing Basics | Aperture and Depth of Field. Depth of Field Depth of Field (DOF) is the front-to-back zone of a photograph in which the image is razor sharp. As soon as an object (person, thing) falls out of this range, it begins to lose focus at an accelerating degree the farther out of the zone it falls; e.g. closer to the lens or deeper into the background. With any DOF zone, there is a Point of Optimum focus in which the object is most sharp. There are two ways to describe the qualities of depth of field - shallow DOF or deep DOF. Shallow is when the included focus range is very narrow, a few inches to several feet. Deep is when the included range is a couple of yards to infinity. Aperture The aperture is the opening at the rear of the lens that determines how much light travels through the lens and falls on the image sensor.
Small vs Large Aperture Manipulating the aperture is the easiest and most often utilized means to adjust Depth of Field. Aperture Range Distance from the Lens Conclusion You might also like: DIY Reflector. I have long liked the idea of the California Sunbounce, but it's very expensive, so I decided to have a go at making my own. the frame was to be constructed from PVC tube, and fitted with a two-sided cloth cover, black on one side, and silver on the other.Here is a brief description of the project: First, as I wasn't too concerned with the overall dimensions of the finished product, the lengths to which I cut my tubes were purely arbitrary. The only measurement that mattered at this stage is the length of the handle piece, as it had to fit the frame. The lengths I cut were: (A) 4 side pieces @ 19 3/4"(B) 2 end pieces @ 24 3/4"(C) 2 handle standoffs @ 3"(D) 1 handle @ 19 1/4" The fittings required are:4 90 degree elbows2 45 degree elbows2 tees(All the tubes and fittings are 3/4" Schedule 40) The only tools needed for the job are a hacksaw, a measuring tape, and a marker or a pencil.
The completed frame. Lightstand/tripod fitting with 5/8" stud attached. Et voila! Repost - A Look Back at the Minikit - Andy Franck Photography Blog. Repost - A Look Back at the Minikit This is a re-post from my original blog platform which I fairly quickly abandoned in favor of Tumblr. Rather than have it fade away entirely, I’m going to be posting some of the more popular content here… A few years ago an already old gallery of my computer kit – a Mac Mini and 20-inch Apple Cinema Display mounted in a Pelican case – caught the interest of several Mac and photo blogs. I quickly saw several hundred thousand hits in a few days and still see regular traffic each month.
The minikit was retired a few months later, but I have a lot of fond nostalgia for that system and often look back at it to see if I can capture some of that old magic for my next system revision. Keep in mind that this kit was originally put together back in 2004-2005.