You can use EF lenses on a crop camera, but not vice versa, i.e. EF-S are not compatible with fill-format cameras. The effective focal distance on a crop camera should be multiplied by 1.6, when using EF lenses. Other than … Continue reading →

10x. Finding and Adjusting a Microscope’s Magnification The standard eyepiece magnifies 10x. Check the objective lens of the microscope to determine the magnification, which is usually printed on the casing of the objective. Is the eyepiece magnification always 10? The … Continue reading →

Zoom range is a big selling point for digital cameras and lenses. The average ‘kit’ lens sold with an entry-level DSLR or mirrorless camera will have a zoom range of 3x, a premium kit lens might have a 5x zoom … Continue reading →

Nope. You’re the one who is incorrect. A DX body has a crop factor of 1.5. If you mount ANY 35mm lens on a DX body, regardless of whether it’s a 35mm DX or FX lens, the result will be … Continue reading →

Since the use of a converter lens reduces the image quality of the resulting image, the lenses to be stacked must be of very good quality. Stacking two average lenses will get you poor to very poor results. The reason … Continue reading →

Lens caps engage with the filter threads, so they should be interchangeable. There’s after-market no-name lens caps if you object to the “optics” of Canon on Nikon. The “pros” don’t like to use tethers for lens caps, but they are … Continue reading →

Yes and no. A hood can help prevent a nearby light from reflecting directly on your lens. However, the light pollution caused by that light, and other lights, will still effect the photos. So yes it can stop a direct … Continue reading →

Depends. Basically if you use USB (if you’re using a headset or whatever) you’re using the sound card (DAC/AMP) integrated on the headset or whatever. If you’re using the 3.5mm jack, you’re using your PC sound card, which is usually … Continue reading →

The DAC bit of the Apple dongle is excellent and there is no reason to worry about it being a limiting factor. Is a dongle a DAC? What is a ‘dongle DAC’? A dongle is a bit of kit that … Continue reading →

Advantages of Optical Input Even though there is not much difference in the audio quality, it is supported by most modern home theaters. When you use optical input with a surround sound system, the result is better than AUX input. … Continue reading →

There’s no evidence that aux cords affect sound quality when compared to a similar aux cable. However, an aux cord will impact audio quality when using a longer wire or a Bluetooth connection. When selecting an aux cable, prioritize its … Continue reading →

A lens is your precious resource. With this service, the mount of your current SIGMA lenses can be changed to another mount of your choice. This service gives a new life to your favorite lenses when you wish to use … Continue reading →

Stage micrometer at 1000x magnification with Olympus Compound Microscope. The diameter of field of view (fov) is 0.184 millimeters (184 micrometers). Objective Diameter Of Field Of View Magnification (10x Ocular) 4x 4.0 mm (4.45) 40x 10x 2.0 mm (1.78) 100x … Continue reading →

There are two variations of these lenses: the D or the G. The f 1.8 D is the older edition of the 50mm 1.8 Nikon lens, while the G is a newer, more updated version. There are plenty of similarities, … Continue reading →

Oil Immersion Objective Lens (100x) The oil immersion objective lens provides the most powerful magnification, with a whopping magnification total of 1000x when combined with a 10x eyepiece. What microscope has 100x magnification? The compound microscope typically has three or … Continue reading →