Check the LED indicator on the AC adapter Unplug the AC adapter from the wall outlet for 15 seconds. Unplug the AC adapter from the laptop. Plug the AC adapter into a known-good wall outlet. Plug the AC adapter into … Continue reading
How Do I Choose The Right Power Supply For My Electronics?
Power Supply Voltage If your device needs 9V, you need a 9V power supply. If your device needs 5V, you need a 5V supply. Also, if your device needs a DC voltage (which is the most common), you need a … Continue reading
How Do I Know What Size Power Adapter I Need?
Choosing the right adapter specs. The general rule is to match the V and equal or beat the mAh, so if you are choosing an AC adapter to make sure you check the following, The adapter output V matches the … Continue reading
How Do I Know If My Canon Lens Is Full Frame?
For Canon, full frame lenses are expressed as “EF” lenses while crop frame lenses are expressed as “EF-S”. If a lens has “EF-S” in the title, it is for crop frame sensor DSLRs and cannot be used on full frame … Continue reading
Is It Worth Buying A Telephoto Lens?
Telephoto lenses are incredibly versatile and useful in a variety of situations. From zooming in on far away subjects to taking flattering portraits to “compressing” a scene to add drama, a good telephoto lens can help you take your photography … Continue reading
What Is Af On Canon?
Canon AF-ON Button This decouples focusing from the shutter-release button, and engages autoexposure lock when half-pressed. Once you do that, the camera will engage autofocus when the AF-ON button is pressed, effectively enabling back-button focusing. What AF mode should I … Continue reading
Can I Use Olympus Lenses On Sony?
Is there an adapter available to allow Olympus OM D EM lens to be used with the Sony a6000? Any replies greatly appreciated. So yes, you CAN mount the M4/3 lenses on Sony E mount cameras. Can Olympus lenses be … Continue reading
What Does Olympus Om D Stand For?
What do the initials OMD mean? It’s a digital (D) version of their classic 35mm SLRs, the OM line. Originally they were called M, but leica got annoyed & Olympus changed the name to OM. The EM-5 is the 5th … Continue reading
What Is Af Area Mode?
AF area mode basically gives you a range as to where the camera is likely to focus on. Normally when a camera is working in AF mode it will look for contrast to lock on at any one or more … Continue reading
Can I Use Any Lens On My Dslr?
Most DSLRs (digital single-lens reflex cameras) and SLRs offer you an option to change lenses. You can attach any type of lenses that is suitable for your project, as long as it is compatible with your camera body. Generally, lenses … Continue reading
What Is The Most Common Lens?
Overall Most Popular Lenses Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens (pictured right) Nikon 50mm f/1.8D AF Nikkor Lens. Canon EF 50mm f/1.8 II Lens. Canon EF 50mm f1.4 USM Standard & Medium Telephoto Lens. Canon EF 24-70mm … Continue reading
What Does D Mean On Nikon Lens?
On older NIKKORS you may see the letter D, and that means distance information is factored into the metering process. What does D and G mean on Nikon lens? The main difference between the D and G lenses are their … Continue reading
How Do Lens Mounts Work?
Most lens mounts in current use are bayonet style, in which a lens is attached to the camera body by registering the lens in proper orientation with the camera body, then giving a slight twist of about 45-90° to lock … Continue reading
Is The Space Between The Bottom Of The Objective Lens And The Surface Of The Slide?
‘- WORKING DISTANCE is the space between the bottom of the objective lens and the surface of the slide. – FIELD OF VIEW is the area you see through the microscope. What is the name of the space between the … Continue reading
What Are The Two Lenses In A Microscope?
Compound Microscopes Typically, a compound microscope is used for viewing samples at high magnification (40 – 1000x), which is achieved by the combined effect of two sets of lenses: the ocular lens (in the eyepiece) and the objective lenses (close … Continue reading