Hot answers tagged lens
6
Two points:
On "On the other hand, camcorders routinely have f0.95-f1.2 lenses", I simply dispute this finding. Take a skim at PL lenses available, there aren't any lens close to f1 that's economically reachable, which brings me to point 2.
I refer to Erwin Puts, lens expert. In his Leica Lens Compendium, he mentioned many technical difficulties in ...
5
The larger the maximum aperture, the larger the lens. Therefore fitting an ultra-bright lens works against making the camera small. The size also increases in proportion to the focal-length, so the more zoom you fit in, the harder it becomes to make an ultra-bright lens can keep it compact.
There are a number of F/1.8 lenses in compact cameras but you will ...
4
Those lenses have very little overlap, so you will generally known which one you need. They are not interchangeable for any given subject. There are subjects you can take with both but the result will not be the same except between 40 and 42mm, so the one you use is the one that gives the results you are looking for.
The 14-42mm is a wide-angle to medium ...
3
If you are doing weddings, the extra stop of an f/2.8 lens is almost essential when shooting in churches that don't allow the use of flash. For about the same price as the EF 24-70mm f/4, you can buy a Tamron 24-70mm f/2.8 Di VC. The reviews I have seen place it between the original EF 24-70mm f/2.8L and the EF 24-70mm f/2.8L II in terms of sharpness. The ...
3
It depends on what, exactly, you mean by image quality. In terms of ghosting or flare caused by reflections on the back surfaces of the elements of a lens this is often the case. If the ghosting is visible through the viewfinder when the mirror is down and the shutter closed on a DSLR, then the ghosting is not being caused by the light bouncing off the front ...
2
I'm going to argue that there are few scenarios where one lens is more correct than another. For scenarios where a telephoto view might be used, a wider angle shot might also be interesting. Or, this could be the difference between head-and-shoulder portraits and environmental portraits.
That is, of course, stretching. There are likely few scenarios where a ...
2
The best way to visualize what pictures taken with each lens look like is to convert your lens' focal length to the equivalent focal length on a full frame body in terms of the same angle of view. Then look at images that were taken with a camera/lens combination with the same angle of view. In the case of the 4/3" sensor on your Olympus EP-3, the conversion ...
2
Gels aren't generally available as screw-on type filters. To place a gel on the front of the lens requires a holder of some kind and a much larger quantity of the filter media. Many "sample" sets of various color gels come in sizes that allow for trimming to fit a rear filter holder but not large enough to fill a front sized filter holder. Due to the less ...
2
It is no more and no less versatile than any prime lens. As a single focal-length, it always frames with the exact same perspective. The said perspective is a mid-range which slightly compressed distances which makes for flattering portraits. It does the same for a landscapes and you would use it for subject suitable for such perspective.
All lenses have a ...
1
The part about working with video but not with photo is interesting and may mean that the camera itself is bad. There are two main types of auto-focus, Phase Detection (PD) and contrast detection (CD). CD is slower and requires focus hunting (passing the point of focus and coming back), however it is generally more accurate and can be done with a normal ...
1
This isn't meant to be an exhaustive list or answer as I have very little experience with this but wanted to point out of the obvious reasons:
Cons of rear filters
Having to remove the lens each time to add or remove a filter
Does not allow filters requiring manipulation(vari-ND or circular polarizers for example)
Pros of rear filters
Allows filters ...
1
I have both the Nikon el-nikkor 50mm f2.8 enlarging lens and a Canon 5D Mark II. I have two ways.
1) Mount the lens on a Canon body cap and use Canon extension tubes to mount the lens. The lens aperture ring is hard to turn, so the mounting to the body cap must be good to avoid the lens twisting off when the aperture is changed.
2) The way I do it is mount ...
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