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The distance scale is logarithmic. You need to take that into account, rather than assuming the distance between each set of adjacent numbers is linear. It would probably be close enough to use a rule of thumb that the halfway point in focus distance between two adjacent numbers on the left third of the matrix is two-thirds of the way between those numbers ...


Assuming there is nothing with either the lens or the camera body, then yes, your AF-S lens is fully compatible (including autofocus) with the Nikon D3100. See the 2nd row of the Nikon lens compatibility chart. If the camera says your lens is not attached, then one of the following is probably happening: The lens isn't fully rotated and latched into ...


I don't think there is a specific max weight for the lens mount, as such, I've never really seen that on any camera I've owned (modern or film) as typically heavy lenses should be supported directly and not via the camera body. While the M50 mount is welded to the inner metal frame, this not is heavy duty. I would not recommend supporting a heavy lens with ...


They look as if some liquid splashed over it, so you need an alcohol-based cleaning solution. There are some premoistened Lens Cleaning Wipes on amazon. Read the reviews before buying a specific brand. Just be sure they can be used on coated lenses. But wait for other responses, I am sure someone will tell you the specific type of alcohol needed. Additional ...


Kowa 6mm and 4.8mm c mount lenses may help. The HC series cover more than the nominal 1 inch. Very high resolution. There are many youtube and some Vimeo examples of the 6mm in action on BMPCC and GH4 cameras.


Some APS lenses, especially primes, will cover FF sensors. They need to be over 50mm FL or so. The longer the focal length, the better the coverage. Zooms will not cover at wider focal lengths. Using an extension tube has been covered above by previous answers.


Inflation is also known as crapification. The older cine lenses often had 15 leaves and very round apertures as a result. Cost eventually meant 6 leaves were standard for 20 years or so and now we may have two leaves, making a triangle or a square aperture.


Tamron 1 inch sensor lens. This should cover most of the m4/3 sensor. It is quite old as the 'zebra' colour scheme suggests. The first zooms were 2x, then 3x then 4x then 5 and 6x. 1.8 is quite fast, many are 2.8 or 2.5 of that era. Quite filmic, so no need for mist filters. It covers more than a 16mm and possibly a Super16mm lens. Very heavy and may not ...


The main issue is that unless relatively recently made, there will be no documentation for the essential information about the lens. C Mounts were invented in the 1920s or 30s by Bell & Howell, USA. They superceded the A and B mounts and if the cine lens is very old you may find it has registration issues because these mounts do not have the C mount back ...


It's called lens flare. Light from the sun that is just out of frame is striking the surface of your camera's lens or surrounding housing and bouncing around inside the lens. Some of that light is included in the part of the image circle that falls on the camera's sensor. There are many different types of lens flare. In addition to the more well known cases ...


I have seen quite some of lens bubbles, but this one does not look like one. It looks like some spot on the coating surface. Try to wipe it with lens cleaning liquid and tissue, if it does not vanish, then most likely coating has some minor damage.

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