For the second shot, the leaf was brought inside, rain water and all. I set it up in a similar way. This time however, I used natural low lighting which meant that with an aperture of F29, I needed 30 seconds to make the correct exposure. Remember that when you open or close the aperture, you or the camera has to adjust the shutter speed to compensate. If you close the aperture right down for good depth of field, check the shutter speed as it may become slow and "non-hand-hold-able".

When I do a lot of interior work with an ultra wide angle, I generally use f8 or f11 as I know this will suffice for the image quality I need with this lens.

You can freeze the image on the Magnifier and then zoom in on it. This way the image is stable as you are trying to see it. Move the image around with your finger to see different parts of the image.

The first time you use the app, you will see that the flashlight is on by default. You can turn this off if you do not need it, and want to save battery, by tapping the lightbulb icon in the lower right corner of the screen.

Magnifying lens usesand functions

You can also turn Auto-Brightness to on. Auto-Brightness changes the brightness of the screen based on the available light.

Good news! That phone in your pocket is filled with handy tools, including a magnifying glass. No more squinting! Your phone’s magnifying glass lets you see the small stuff, any time, anywhere.

Magnifyingglass used in electronics

magnifying glass - n. a specially shaped piece of glass that is attached to a handle and is used to make an object look larger than it is

Tap the camera button to freeze the image and take a screenshot of the image. Pinch and spread your fingers to zoom in and out of the image.

I have always found "depth of field" a strange term, why not simply call it Depth of Focus? Anyway, it matters not, what does matter is how it affects your photography and how you can use it to your benefit.

Some Android phones also have a magnifying glass feature, but you need to turn it on for it to work. To turn on the magnifying glass, go to Settings, then Accessibility, then Vision, then Magnification and turn it on.

Who inventedmagnifyingglass

Tap the triangle in the lower right corner of the screen to control the image you are seeing. The filter lets you adjust the brightness and color of the image. You can also add colored filters to the image.

invert - v. to change the position, order, or relationship of things so that they are the opposite of what they had been

Whether you are trying to read a menu in a dark restaurant, the warning label on your medicine, or the fine print on a contract you possibly should not be signing, a magnifying glass can come in very handy. One with a light is even better.

In the bottom left corner of the filter screen is an invert button that lets you change the colors. Tap that to invert the colors.

Tap the photo button on the left to see the screenshots you have taken and to share them with others. Tap the back button on your phone to return to the magnifying glass.

Magnifying lens usesfor reading

This is because my 50mm lens has a maximum f-stop of just 1.4 and this was taken at that aperture. I like this effect and use it a lot for portraits. It draws your eye to theirs with no other distractions.

Have you ever needed a magnifying glass but did not have one handy? Do you like the idea of using your phone as a magnifying glass? Do you use a magnifying glass app that you would recommend?

The iPhone has a useful magnifying glass feature that uses the camera. You must turn this feature on in order to use it.

focus - n. a state in which something (such as a camera, a telescope, or a person's eyes) produces a clear picture or image​

The aperture setting has the largest factor in determining the depth of field of your images. Just remember that f4, 3.5 or 2.8 (or larger) will have shallow or little DOF. Whereas F8, 11, 16 or smaller, will have greater DOF. This is particularly true if you are doing close up work, a large (wide) aperture close up will have very little in focus.

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Some Android phones do not come with a magnifying glass feature built in. You can use zoom in the camera app if you need magnification.

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Many magnifying apps are in the Google Play app store with different features. Some of these apps are free but have advertisements.

Lastly, this image below shows the other extreme. I used a Canon EF 50mm standard lens to get this shot of Dillon. You can see that the background is completely out of focus with virtually no depth of field. In fact the depth of field is so shallow that even though his head is only slightly turned, one eye is in focus and the other isn't! You can see a larger and clearer version of this image by clicking on it.

Magnifying lensconcave or convex

It’s all to do with how much light enters your camera and the type of lens that you use. Basically, there are 3 factors that determine the depth of field in your images;

Tap the white circle button to freeze the image. The circle will have a yellow edge while the image is frozen. Tap the button again to unfreeze the image.

To illustrate these points, have a look at these 2 pictures. I was testing the Sigma 105mm Macro Lens and wanted to check the sharpness at close quarters. The shot on the left was taken by dropping a small amount of milk into a larger container (click for larger versions).

Personally, I normally set my camera to Av or "aperture priority" 95% of the time for more control over sharpness. For the kind of work I do, the depth of field is more important to me than shutter speed. Although, if I need a fast shutter speed, I can just quickly and easily whack the aperture right open. This gives me the fastest speed available in that light.

10usesofmagnifyingglass in laboratory

Let's say you are photographing your subject sitting on a wall about 20-30 meters away (or more) and you are using a wide angle or standard lens. You can almost guarantee that a lot of your image will be in focus whatever the aperture (within reason). However, bring the subject closer to say 2 meters, and that changes. The camera will focus on the subject but will more than likely throw the background into blurry "oblivion".

So when you are out and about next, instead of setting the camera to auto, experiment with depth of field. Get creative. Used in the right context a large or very shallow DOF can be very effective.

My favourite time-saving plug in for large photo editing projects such as weddings or commercial shoots. Autoloader saves me HOURS!

The camera was on a tripod and I used 2 studio lights closely positioned, and pre-focussed on the point where I would drop the milk.

Please Note: The smaller the aperture you use (especially this small), the more "specs" of dust will appear on your images. This image was literally covered in them before I cleaned it up. It is a good way of testing your sensor for dust, but don't be too put off by this, it is quite normal and is easily fixed using a good editor and cloning/healing brush. If you are unsure of what you are doing please do not try and clean the sensor yourself, you may damage it and they cost a bit! Go to a reputable dealer/cleaner and get it done. Otherwise, there are many safe ways of cleaning the sensor yourself. Check out our "camera sensor cleaning" page for more information.

Magnifying Glass Flashlight currently has the highest rating of the magnifying apps in the Google Play store. This app has both magnification and a flashlight to shine a light on what you are trying to see. Like the iPhone Magnifier, this app can freeze the image so you can zoom in and steady what you are trying to see.

Because I was using a telephoto lens and working extremely close I needed a very small aperture. Plus the fact that the lights were bright and also very close. In this case, the aperture was all the way closed at F36! It has to be said that even with this small aperture, parts of the background were blurred. This is more than likely due to "diffraction" of the light when you stop down too much. So, f16 is normally enough for good, sharp pictures. Also note that a telephoto combined with macro leaves little room for error as the depth of field is at its smallest.

To use the iPhone’s magnifying glass, called the Magnifier, tap the Home button three times. That will open the magnifying glass screen.

When you need to use the magnifying glass, go to the camera app and tap the screen three times. To turn off the magnifying glass, tap the screen three times again.