For example, the cross hairs don't get larger as the magnification and the target size is increased, they stay the same size. If you turn up your magnification, the target will get bigger and subtension will decrease. The amount of space your cross hairs cover on the target will be cons...
The title of this article is exactly what I had to figure out when a large box of slides from my dad landed on my desk a few weeks ago. It was a family treasure waiting to be archived. At the same time, my black and white negatives sensed an opportunity – I could hear them from...
What Do Wild Birds Eat in Summer and Winter? Why Some Birds Fly South for the Winter and Others Do Not How to Attract Cardinals to Your Garden or Yard 16 Common Songbirds of Pennsylvania 7 Types of Woodpeckers in Pennsylvania and the Northeast...
If you want to reduce blue light from any and all devices you use, including computers, you may want to opt for blue light glasses. While some work as reading glasses and offer various levels of magnification, others simply filter blue light. They’re a simple and effective way to protect...
In an ordinary microscope, the glass lenses bend (or refract) the light beams passing through them to produce magnification. In an electron microscope, the coils bend the electron beams the same way. The image is formed as a photograph (called an electron micrograph) or as an image on a ...
If you’re focusing at high magnifications (e.g., you’re using amacro lens), then you’ll struggle to lock focus. Any movement will shake off moisture and may even break the webs. So you must take care to shootonlyon the stillest of days. Check your local weather forecast, and ai...
I carry reading glasses to the store. I use a handheld magnifying glass in the kitchen. Altogether, these are the best types of magnifying glass options for seniors: 1: Reading Glasses, 2: Handheld Magnifying Glass, 3: Stand Magnifying Glass, 4: Digital Magnifying Glass, 5: Wearable Magnifyi...
This is known as1:1 magnification. So if you were to photograph an inch-long flower, a true macro photo of the flower would take up an inch of your camera sensor. I captured this next image with a macro lens set at or near 1:1 magnification (in real life, those anthers weretiny!
1. Check your water qualityAs with any disease, to see the best results when fighting Ich, you want the water in your tank to be pristine.You should already be regularly testing your water with a good aquarium test kit. If you aren’t, now is the perfect time to start....
-Dusk mask, safety glasses Step 1: Disclaimer Warning! Cutting opal can be highly addictive. It can also be very frustrating and it is easy to fall in love with this gemstone. It can become a costly hobby because opal is a gamble. Don't say I did not warn you. Apart from that eve...