Skip to main content

Point-and-Shoot 101: Focus

Many weeks ago I posted a blog on Point-and-Shoot cameras describing some simple uses and settings that often go un-utilized. Today I'd like to take that a step further and show you some additional tips on focusing and depth-of-field.

I've always been a fan of a blurred-out-background (or foreground) when shooting in macro, this setting is usually a flower symbol on your camera, but knowing how this actually happens within your camera will help you remember how to make it happen in the photo while using the camera's innate tools.
A camera is like the pupil on your eye; to let in more light, it grows; to let in less light on a bright day, it shrinks. There are two tools on the camera that make this happen: the F-Stop and the Aperture. The F-stop is the hole size of that "pupil", or shutter opening, however it seems backwards: the larger the number, the smaller the hole... eg: f5.6 will let in a TON of light and raise your aperture (the time length of shutter opening) to 500 or higher, making the shutter open 1/500th of a second. FAST. The higher that number, the faster the shutter opens and shuts, making the picture super sharp for action shots. To capture humans, the lowest that aperture number can be is about 1/60. Opposingly, if you set the f-stop to a high f18 or 26, the hole will be tiny, letting in a small amount of light, and thus lowering your aperture timing to a slower snap such as "30" or really 1/30th of a second.

That's a mouthful, I know, but here's what it boils down to: the smaller the f-stop, the wider the refraction, and thus, the wider range of focus. Remember, the smaller f-stop is the higher number.

Most point and shoot cameras have a manual or partially manual setting allowing you to change one or the other or both of those settings. But if you don't want to mess around with numbers, watch what the numbers do when you put it on the macro (flower symbol) setting versus the landscape (mountain symbol) setting. Macro will be f5.6 and 1/500 (or so), getting only what's 5 or so feet in front of you in focus, while landscape will get everything in focus (elluding to the mountain ranges hundreds of miles away) from here to eternity, and the settings will look more like f18 and 1/60 (or so).

In addition to Macro, there is also usually a "portrait" (head symbol) setting that will do similar to the Macro setting, what's in the distance will blur out, leaving you with a nice focused face that the background doesn't distract from.

Now get out there and fool around with those numbers- what I were taught in college was to take a small notebook with me and make notes of the photo number and the setting I chose. While the digital age gives us the tools to look immediately, the viewfinders don't always show you the smaller detail, so I'd suggest doing this as well the first few times you play with these settings so you get the feel of the results. Writing things down often sinks them in for me.

Shoot often to shoot well!

Comments

Popular posts from this blog

Gluten Free for Psoriasis

Recently I've been putting my researching brain cells to work on studying the Gluten Free way of life. Since the age of 14 I have had psoriasis, and recently it's been showing signs of progression to psoriatic arthritis, a progression that occurs in about 20-40% of the cases (studies are still incomplete, although the reverse is 80% of PA patients have had psoriasis, so the two are definitely linked). I've been tested for allergies in the 1980s (none), and I'm a pretty natural consumer as well, so I don't use body products with harmful ingredients like parabens or sulfates. Herbal and homeopathic remedies and dead sea salts have all helped reduce my inflammations, but have never eliminated the disorder completely. I was vegetarian for 7 years in the 1990s, and that never cleared up my psoriasis either. Because of its progression I've started researching the diet and how it relates to the disorder, and stumbled upon several articles and studies that now link...

Specific Carbohydrate Diet

After 2.5 years on a strict gluten-free diet and showing only marginal improvement to my skin condition of psoriasis, (although pain free from psoriatic arthritis), my naturopathic doctor has recommended the Specific Carbohydrate Diet (SCD). I had grown frustrated with the worsening allergic reactions I was having to several new foods, and went in for a checkup about two months ago, seeing both my naturopath and a new acupuncturist.  For me this reaction is severe joint pain and swelling on my right side, and I am so sensitive to gluten that now anything made in a factory with gluten - as well as all "inflammatory" foods such as soy and the "nightshades" family now - gives me this reaction. Both docs agreed I should go off the nightshades, refined sugars, and soy, and add some acupuncture, Chinese herbs and natural remedies (aloe juice, apple cider vinegar, and more) to my daily rituals to enduce some intestinal healing.  Since then I have seen a 50% reduction i...

DIY Bath Salts

A few weeks back I added two posts for making your own face products. Along that same home-factory-idea line is the typical bath salt. I laugh when I see them in the store for $15, when it's often only $1 of Epsom or Sea Salt and a few drops of essential oil, plus $10 of preservatives you DON'T want on your body! I making salt baths more regularly after a car accident several years ago that left my back in a pretty poor state of health. I was taking a pain-bath about 3-4x a week and it helped immensely. Now I take them for all sorts of reasons: relaxation, menstral cramps, headaches, chest colds, aching muscles, and psoriasis flare-ups. The salt is the base to this so let's start there! SALT First, all salts are sea salts either mined as rock or evaporated from the saline solution. Sea salt is sodium chloride, and is used in cooking and cosmetics. "Dead Sea Salt" is proven to have the highest content of body-healing minerals it it, from the Dead Sea. Table s...