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Results tagged with lens
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user 67
A photographic lens is used to focus the light onto film or a digital sensor. Many cameras have interchangeable lens systems, allowing the photographer to choose the type of lens to use.
1
vote
How does the Canon EF 75-300mm USM III compare to the Canon EF 70-300mm USM IS?
The only positive feelings I have about that lens is that it covers the 75-300 mm range. … I haven't actually used this lens, so I can't say for sure, but everything I read leads me to believe that the image quality is significantly better as well. …
- 23.7k
2
votes
Accepted
How to take care of a new lens?
As far as bumps/scratches, the most common ways to protect your lens are:
UV/Protection Filters
Lens hoods …
- 23.7k
7
votes
Accepted
What is the significance of the word "Color" in the names of some older lenses?
Reducing CA is done by modifying the lens design and/or materials so that different color wavelengths all have the same focal point. …
- 23.7k
4
votes
What is the average lifetime of lenses, specially L lenses
The abundance of adapters for old lens mounts should be a good indication of the long lifespan of a good lens. …
- 23.7k
34
votes
Accepted
What is USM, and what are its pros and cons?
These other names include:
USM: Ultrasonic Motor (Canon)
SWM: Silent Wave Motor (Nikon)
SWD: Supersonic Wave Drive Motor (Olympus)
SDM: Supersonic Drive Motor (Pentax)
SSM: In-Lens Super-sonic Motor …
- 23.7k
4
votes
Is there development in the world of lenses?
Besides the actual lens elements, there are also a lot of other components of a lens that are still being developed, on great example is IS/VR systems, which have become far more intelligent in recent …
- 23.7k
1
vote
In need of a quality close zooming lens with minimal distortion (canon)
If you are looking for a higher quality lens that will provide a much sharper image and better color reproduction than the 18-55, then a very good option is the Canon EF-S 17-55 f/2.8 IS USM. …
- 23.7k
25
votes
How much do lens lineups vary across DSLR platforms?
I can see the argument for picking based on lenses, but that factor is negligible if you stay to larger brands (Canon, Nikon, and to some extent Pentax), as they all have an extensive lens selection. …
- 23.7k
6
votes
Accepted
Can't auto-focus at full zoom
This can happen for a variety of reasons, so I'll just list a few common ones:
too close to subject - lenses have a minimum focus distance, which should be listed on the lens
low contrast - the AF system …
- 23.7k
6
votes
Where can I find reviews of lenses?
It isn't a lens review site per se, but lenshero.com is a great tool for comparing lens options.
Like Snapsort for cameras, they've got a lens comparison tool. … The front page features a walk-through find-me-a-lens thing, which I find slick but not so useful if you've got some idea to start with. …
4
votes
Performance of Sigma 85mm F1.4 EX DGM on Canon 60D
Any EF Lens will work on an EF-S (APS-C) mount without issues. … Regarding HSM support, I believe that is in reference to a Nikon mount version of the lens. Because the AF motors are in the lens for all Canon mount lenses specific body support is not needed. …
- 23.7k
12
votes
Accepted
Overlapping vs. Complementary lenses
While complementary lenses cover a wider range at a lower cost, you are giving up some flexibility and quality by going that route.
With zoom lenses, the extreme focal lengths on either end are often …
- 23.7k
25
votes
What are the limitations of a typical kit lens as a general purpose lens?
Usually a kit lens is f/3.5-5.6, while a good zoom is f/2.8. That difference is huge when working in low light. …
- 23.7k
9
votes
Recommendation for a budget fixed focal lens
The Nikkor 50mm f/1.8 is certainly going to be a great option, and is well within your price range.
There are several other options, such as the NIKKOR 85mm f/1.8, but with a $200 max you're quite li …
- 23.7k
16
votes
5
answers
7k
views
What equipment is necessary/preferred for real estate photography?
What equipment is necessary for real estate photography, and what is preferred?
I'm starting into real estate photography, and I'm trying to figure out what I need and what I will want to plan on add …
- 23.7k