In modern SLR, DSLR and mirrorless cameras, the aperture is located between the elements of the lens. It’s created by a mechanism called a diaphragm that controls the size of the opening, much like the iris of your eye. That’s … Continue reading →

All microscopes are designed to include a stage where the specimen (usually mounted onto a glass slide) is placed for observation. Stages are often equipped with a mechanical device that holds the specimen slide in place and can smoothly translate … Continue reading →

Place the microscope slide on the stage (6) and fasten it with the stage clips. Look at the objective lens (3) and the stage from the side and turn the focus knob (4) so the stage moves upward. Move it … Continue reading →

You can tell if a lens is AIS when: The minimum aperture (both the main larger and smaller direct read out figures) are marked in orange i.e. F16, A notch has been taken off the rear bayonet mount, above the … Continue reading →

Never use the 100x objective without using immersion oil. When you have correctly brought your slide into focus up to 40x (step 3), then: a. Turn the nosepiece half-way between the 40x and 100x objectives. Why must oil be used … Continue reading →

The best lenses available for your Panasonic camera – at the best prices Panasonic 25mm f1. 7 LUMIX G ASPH Black Lens – Micro Four Thirds Fit. Panasonic 20mm f1. 7 LUMIX G II ASPH G Micro Four Thirds Lens. … Continue reading →

How do you carry long telephoto lenses? To know how to carry a camera with a long lens by a strap, the first thing you have to do is put the strap over your shoulder. Hang your lens using the … Continue reading →

Lenses of 120 mm to 300 mm and above are considered long. A 90 mm is fairly long. The longer the lens, the farther away you’ll stand from your subject to take the picture. For example, to photograph a boat … Continue reading →

convex lens. In a reflecting telescope the objective is a concave mirror of radius of curvature 2 m and an eyepiece is a convex lens of focal length 5 cm. Is an eyepiece a lens? An eyepiece is essentially a … Continue reading →

Nikon Corporation. Nikkor is the brand of lenses produced by Nikon Corporation, including camera lenses for the Nikon F-mount. Nikkor. Type subsidiary of Nikon Corp Industry Camera lenses Founded Tokyo, Japan (1932) Headquarters Tokyo, Japan Website www.nikkor.com Who makes Nikon … Continue reading →

The new Leica M10-R: Leica Camera presents the 40-megapixel variant of its legendary rangefinder camera. With the new Leica M10-R, Leica Camera AG introduces a high-resolution variant of the company’s legendary rangefinder camera. What is the best Leica M? Best … Continue reading →

Lens release button — Press this button to unlock the lens mount and detach the lens by rotating it. You don’t need to press it when mounting a lens. Drive mode button — This lets you control the camera’s drive … Continue reading →

Nikon AF-S NIKKOR 50mm f/1.4G Lens The most popular staple Nikon D3000 lens is the Nikon AF-S NIKKOR 50mm f/1.4G Lens. This is not just a lens, but rather a complete bundle that is perfect if you are only getting … Continue reading →

Compared to the Nikon D5000 and D60: major feature and specification differences Nikon D3000 Sensor cleaning • Image Sensor Cleaning • Airflow control system • Image Dust Off reference data (optional Capture NX 2 software required) Autofocus • 11 area … Continue reading →

The G-type NIKKOR has no aperture ring; aperture should be selected from camera body. Nikon developed ED (Extra-low Dispersion) glass to enable the production of lenses that offer superior sharpness and color correction by minimizing chromatic aberration. What is a … Continue reading →