Hot answers tagged superzoom
23
The biggest reason for difference in the two lenses is aperture. The 80-200mm is a constant f/2.8 throughout the focal range and the 18-200mm varies from f/3.5 to f/5.6, so substantially slower, especially at the far end. All this really means is that the 80-200 can let in more light at the same focal length over the other.
Also, generally, zooms with ...
13
Nobody is saying that you must choose an 80-200 over an 18-200. An 80-200 (f/2.8) has some severe drawbacks compared to an 18-200, price, size and weight being among them besides the obviously limited zoom range. On the other hand, an 80-200 is far better behaved optically; it will tend to focus faster and more accurately (on a given camera body, and ...
12
The 18-200 might be more expensive, but I don't think I've ever seen a lens getting worse reviews. (There are two reviews linked there, and they're two of the friendlier ones.)
The 55-250mm, on the other hand, gets rave optical reviews. The worst thing anyone has to say about it is that, well, is mostly plastic. Really good, solid, well-built plastic, but ...
12
Comparing feature-by-feature is meaningless, a DLSR (even entry level) and a superzoom point and shoot are systems that choose almost opposite tradeoffs at every important design decision.
It's a bit like comparing a sports car and a mini van - while both are cars they are different systems designed for different purposes.
If the words small, light or ...
12
Stop listening to him. You can compare anything you want. A DSLR and a superzoom? Sure. A DSLR and a cellphone? Yes. A camera and a fishing rod? Why not! You will see many people compare things which are quite different, even here on this site.
Think about the questions when someone asks if they should get a new lens or a new camera. What they are doing is ...
11
Short answer: you can obtain some very good results, but only under certain conditions and absolutely not even close to what is shown in the linked video clip.
My company, Amped Software, develops image and video processing software for forensic and intelligence applications, so basically we are the real world counterpart of the CSI software.
With ...
10
You're comparing ultra-wide versus "simply-" wide. It's as if you'd compare a 200mm tele to a 600mm one.
Those 8mm do in fact have a great significance, for example:
http://www.flickr.com/photos/brynolf/754640788/
I do think this illustration is a tad exaggerated, but you get the feeling.
9
You can't make something out of nothing, you have to have (or guess) some information in order to be able to enhance an image in any way. For example if you know the properties of the blurring function (and there is no image noise) then you can actually unblur a photo. However you rarely know the blur function and noise is always present so that severely ...
9
As a really, really broad generalization, it's easier to make a high-quality zoom lens with a smaller zoom range, rather than a larger one. Although it's really tempting to look for one zoom that'll cover your entire range of shooting (Tamron's 18-270 comes to mind), these lenses tend to be fairly ill-behaved over portions of their range (at least), and ...
8
A (simplified) Look at Camera Sensors
The sensor on your camera is 14 megapixels and 6.17x4.55 mm in size. By comparison, a Nikon D3100 (an entry-level DSLR) has a sensor that is also 14 megapixels, but its physical size is 23.1 x 15.4 mm.
Even more expensive DSLRs, known as "Full frame," have a sensor that is roughly the size of 35mm film (about 36 x 24 ...
8
That is the price because that is how much enough customers are willing to pay for it.
While they are complex lenses, they are not high quality ones (the Nikon is sharper with more distortions) and both are quite dim on the long end.
The price is for convenience of changing lenses less often, or not all all. After all, comfort and convenience are very ...
8
Image quality. The wider the range of focal lengths on one lens, the more design compromises are made and the more correction must be applied deal with things like geometric distortion, chromatic aberration, and light fall off in the corners.
Aperture. Even though the EF-S 18-200mm f/3.5-5.6 has the same maximum aperture of f/5.6 as the EF-S 55-250mm ...
7
Beyond the longer focal range, the 18-135 also features internal focusing, so filters don't rotate during auto-focus, which is very nice if you ever use a circular polarizer or graduated ND filter.
The only real downsides compared with the 18-55 are the increased weight and the decreased maximum magnification, making this less usable for macro-style ...
7
This kind of question comes up very often with different combination of subjects and, no matter how often it is asked, the answer is still NO. If needed such a range in a single, you should have bought an ultra-zoom instead of a DSLR. One of the beauties of a DSLR is the ability to change lens, so I suggest you make friends with it.
Birds are extremely ...
7
I believe F1.4 is the best you can do on a compact so far:
http://www.dpreview.com/news/2012/7/18/Panasonic-announces-Lumix-DMC-LX7-with-F1-4-2-3-24-90mm-lens
You know from 35mm format lenses that it is hard to find those that are sharp wide open. it is hard to get all those rays of light to hit a single small dot. On a compact sensor, those dots are even ...
6
Things to consider 18-135mm:
You dont need 135-250mm range.
You dont like to change lens frequently.
You want slightly better image quality within consumer grade.
You want to carry only one lens with you.
Things to consider 18-55mm and 55-250mm:
You dont mind changing lens often.
You want the 135-250mm focal range.
You dont mind the slightly less ...
6
A superzoom like that will be the jack of many trades, master of none. If you are used to the sharpness of the prime, you may be seriously disappointed with the softness of a superzoom. My experience is limited to the 18-200 style lenses, but beyond basic sharpness, consider:
You are used to 50 mm f/1.8. You now want to have a starting aperture of f/3.5 ...
6
It is hard to make a zoom lens that is sharp and open enough the entire focal range without tunnel vision and lens distortion. So the larger the range span is the more difficult it is to keep the quality equal. That's why the fixed focal length lenses still exist. You can get amazing quality compared to your zoom lenses for a small price, at the cost of ...
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
If you are considering paying for the 18-200, I suggest you take a long hard look at the 70-200 f/4L instead. It is among the cheapest of the pro-level "L" Canon lenses, and is a very, very good piece of glass. The main drawback is the f/4 aperture; against this it is relatively small and light.
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
For portraits ideally you want something in the 50-85mm range. An f/1.4 or f/1.8 is ideal for throwing the background out of focus.
For landscapes I think you generally want as wide as possible. I prefer betwen 10-35mm. You will want to use a tripod and stop the lens down for maximum DOF, so you don't need a fast lens.
For birds, you need as much focal ...
4
The super zoom is a compact camera without (i) interchangeable lenses and (ii) optical viewfinder. On the other hand a DSLR, even an entry level one, will offer these two features (the reflex in the name has a meaning, after all... :-) ).
Usually (and for sure in the case of Nikon) this means that you can buy other lenses from the lineup of the compatible ...
4
I was recently in a similar situation as you. I purchased a superzoom as I wanted to save money but still have the ability to take photos of wildlife. I tried it out for a few weeks and it took good quality images (my uses were for web not print I will add) and I enjoyed the camera. However, when I was zoomed out I had to almost always have a tripod because ...
4
There is no difference. There is only one SX40 and its official name is Canon Powershot SX40 HS.
HS stands for High-Speed because it uses a CMOS sensor so it is capable of shooting at 10 FPS. Other manufacturers do not use the same naming scheme but this is quite common lately. Almost all cameras which can shoot video at 1080p use CMOS sensors and are ...
3
There's quite a bit of difference in the focal length range covered by a 18-135mm vs a total range of 18-250mm between two lenses.
Its really a bit of apples and oranges comparison.
If you need the longer focal length, go for the longer setup. If you just need 18-135 range, get that one. Quality wise, they're all consumer zoom lenses and probably about ...
3
One thing to be aware of is that depth of field will be much deeper with the Fuji HS30, due to the small sensor and very short actual focal length (the lens is a 24-720mm equivalent, not a 24-720mm, it's actually a 4.2-126mm).
This means it's not a good body to learn about manual focus (or focussing technique in general) as focus mistakes will be covered by ...
3
As noted by @mattdm, part of your question is answered before:
How do I convert lens mm to optical zoom times?
What does 'how much zoom' mean?
But it seems that you don't have a good understanding of the whole concept.
An advantage of a DSLR is that you can use it with many different lenses, there are lenses with high zoom ratio.
Photo: Photozone.de
...
2
As stated above, if you are not happy with 18-55 you will not be happy with a 18-2xx.
There is a high quality zoom available from canon available within you budget. Canon 70-200 F/4L
it is exceptionaly sharp.
Here is a review:
http://www.the-digital-picture.com/Reviews/Canon-EF-70-200mm-f-4.0-L-USM-Lens-Review.aspx
However i still se great value in ...
2
In addition to softness, pay attention to what sort of distortion you see out of zoom lenses. I don't know that there are any zooms available that won't show some sort of distortion at their extreme focal lengths, but when you're looking at a good zoom lens, it'll typically show only one type of distortion at a time, which is reasonably correctable in most ...
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