All lenses have focal length implied (in mm-mm).

Some say such is the lens kit 18-55mm … This means the lens focal length from 18mm to 55mm zoom and .
-> Lens called a zoom lens that .

16-35mm.
18-55mm.
55-250mm.
70-200mm.
100-400mm.

These are the total zoom lens.

But there are some who say the focal length of a single number like this zoom lens 50mm … not . Want to zoom out to walk.
-> Get this lens or that the Thai Prime lens like lens called Fixed.

15mm.
24mm.
35mm.
50mm.
85mm.
100mm.
135mm.
200mm.

These are the hot fix total lens of lens nikkor.

… … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … ….

Focal length lens of different images to look different . The brief is divided as follows .

Focal Length ends. (Approximately less than 28) will be called Wide lens is taken to see the wide mountain.
Focal Length middle (28-70) will be called as other lens is Normal human eye. Because the human eye, we are about 50mm focal length .
Very focal length (70 or more) will be called Tele lens. Very simply. Zoom far sure enough.

If the share is to be divided into various .

Wide.
Normal.
Tele.
Wide Zoom.
Normal zoom.
Tele Zoom.
Zoom has universal support from Wide Tele.

Lens not only the focal length f will tell … it is told with Aperture wide end of lens .

f very narrow hole.
f Less True width.

Lens with f ends (True Width) price will be expensive . Because the lens elements are larger. And allow more light. Look at the box visibility. To see clear images and bright. And the camera will focus better .

*** More ***.

Lens will be at the f 2 is
- F constant over the wide end zoom.
- F wide change to the maximum zoom.

The lens is often a good f constant over the wide end zoom . Because it makes up light does not change when used for the component images such as zoom 70-200 f/2.8.

The lens is f changed over the wide end zoom. Is the best zoom lens True more narrow as 18-200 f/3.5-6.3 means starting at the 18mm wide end to f/3.5 to f and when to zoom becoming increasingly value f (the narrow hole. down) until the maximum width 200mm f to f/6.3 … just a flaw of this lens is. See in the picture box image will look dim when ever zoom and shutter speed will decrease and it is likely that images will be blurred more.

…

F number value, we can adjust down to write. Some people may think. If the class purchased through the lens f/2.8 constant zoom to. Then want to use f / 8 or f/22 will do this work? … Adjustable write.

Lens of the Nikon camera lens (as well as an independent brand of lens works) will come out today for digital cameras that have multiplied. (All 5D models with non-1Ds) … why because they will have a camera image sensor is smaller than film, so they do lens out to give the image sensor has a good enough.

Image description …
If a lens for film cameras. Must be designed to image. Cover the blue box.
If a camera lens for digital multiplier. Designed to have pictures. Cover only the red box is enough (smaller).

Benefits for the lens for digital cameras are smaller and are ..

However.
We also took the film camera lens for use with digital cameras is the multiplier write.
But to remove lenses for digital cameras to put on camera or film camera, full frame not ครับ. (Camera is full frame camera with large sensor as the 5D is a film 1Ds).

(Why some lenses for digital cameras, film cameras, not to enter because. It will have pictures just a red box around the area … edge image will be black … no call. Be the edge that Black also . If a digital camera’s lens for Canon (ID EF-S) lenses will be filed into ass body ass than usual … which lens is projected to go. The horizontal mirror image. Cause glass to enhance image and not image not).

That every lens. If taken with digital cameras to plug multiplier (the Nikon camera lens).

Focal length is multiplied by 1.6 every

(Some people confuse that lens for digital times … not really need to multiply every write).

To multiply it. It’s smaller sensor size. Image as if it were to zoom into a little bit of concern, such as  become 80, etc. 50 (see illustration).

So, that. It does not actually write zoom. It is only a crop only to own image in the middle.

If the Canon lens is the code is a page 2.
EF … works with film and digital as well as full frame.
EF-S … multiplier only applies to cameras.

If the Sigma lens will write code to end the lens is.
DG … work with film and digital as well as full frame.
DC … multiplier only applies to cameras.

If a Tamron lens to write code to end the lens is the same ครับ.
DI … works with film and digital as well as full frame.
DI II … multiplier only applies to cameras.

Choose lens.

View photo lens Wide .

- EF-S 18-55 f/3.5-5.6 … free contact with cameras.
- EF-S 18-55 f/3.5-5.6 IS … a new kit lens from Canon  adjacent to vibration and a better quality Optic reasonable cost about 3500 .
- EF-S 10-22 f/3.5-4.5 USM … 2 billion for the camera a little wider multiplier .
- Sigma 10-20 f/4-5.6 DC HSM … lens of thousands of independent labels from other general satisfied as well. He said that the sharp and colors come together roughly with EF-S 10-22 … but note that this is a good Sigma lens is narrower than the Canon f write.
- EF 17-40 f/4L USM … 2 billion from a new hole for the light still very sharp, beautiful colors and focus quickly (L lens at the end of the name means this lens is Canon’s pro lenses the quality optic. and structures to better general lens).
- EF 16-35 f/2.8L II USM … Wide Zoom Lens to Canon’s best little 4 billion.

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General imaging lens Normal .

- EF-S 18-55 f/3.5-5.6 … Normal is the same.
- EF-S 18-55 f/3.5-5.6 IS … like a top. But adjacent to shake. Considered to make walking more comfortable in the light ends .
- EF 17-40 f/4L USM … is generally taken to be. For many other people do not want to zoom. But want to have any color pretty sharp.
- Tamron 17-50 f/2.8 DI II … thousand little Aperture constant. This very sharp . Be little concern that the slow focus. And the yellow color quite well (well orange).
- Tamron 28-75 f/2.8 DI … thousand little in common with the above. Production for use with film cameras . (But digital is fine. Please note that 1.6 x 17-50 to 28-80 was approximately the same period).
- EF 50 f/1.8 … no more than 4 billion is a lens that everyone used to play SLR and most will be his own. With the price but the quality is excessive. Because a hotfix lens makes images sharp (very) and f up to 1.8 can be made to shoot in low light any better.
- EF-S 17-85 f/4-5.6 IS USM … billion from other focal zoom much faster and is the same IS system helps shake hands free camera phones at low shutter speeds than normal . Taken steps to remove the light ends.
- Sigma 18-200 f/3.5-6.3 DC OS … thousand other end. Universal lens from Sigma that concomitant vibration (OS is that it IS, but is Sigma) for lazybones change lenses .
- EF-S 18-200 f/3.5-5.6 IS … Nikon camera lens of universal  quality available. Certainly more than either the Sigma certainly  least f other is little more general concern about price per 2 billion.

(Add a little concern … who recently changed from playing a compact SLR typically want a zoom lens of this type is the same in the near and far. But I do not recommend it .
- The quality is not good … Wide bloated image. Normal images are not sharp, Tele Image software list.
- Zoom Aperture narrow but long. Make speed drop … image blur. To be together would help shake not possible.
- … To buy expensive lenses separate the good quality of almost 2.
But concluded that convenience . That what we buy any camera lens has changed then it should buy some lenses to change write).

- EF 24-105 f/4L IS USM … 3 billion little.
- EF 24-70 f/2.8L USM … 4 billion.
- EF-S 17-55 f/2.8 IS USM … 3 billion little.

This is the third lens deity Normal range of Nikon lens free to add any details write.

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The use of remote imaging lens Tele .

- EF 75-300 f/4-5.6 USM … 6-7 billion focus better soon.
- Sigma 70-300 f/4-5.6 DG macro … 6-7 billion as they see each other that well. But I have not used macro focus mainly bit later than the first .
- EF 70-300 f/4-5.6 IS USM … two thousand little. Quality close to the 70-200 f/4L lose the beautiful sharp colors on the structure and focus a little. But either than the 75-300 with Sigma 70-300 is very pretty. Plus, each vibration is also .
- EF-S 55-250 f/4-5.6 IS … nine thousand good lens cost is another important use sharp vibration . For the low budget but want to have another shake.
- EF 70-200 f/4L USM … 2 billion over other popular Lens Pro . Cheapest L lens in the beautiful color images sharp focus is fast and cool. Zoom not filed.
- EF 70-200 f/4L IS USM … 3 billion over gay middle sharp and the 70-200 f4L above . Shake well again a separate deity.
- EF 70-200 f/2.8L USM … 3 billion middle Aperture a great deity.
- EF 70-200 f/2.8L IS USM … 6 billion because of another deity than vibration.

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Taken at f least one lens or lens Tele (about 85-135).

It will post beautiful blur. Model to help drive out to the .

- EF 50 f/1.8 …, although the focus will not so long … but at least after the blur distribution f . Importantly, be nice.
- EF 50 f/1.4 USM … f more general than the antibody sharp focus faster than the above little billion.
- Sigma 70-300 f/4-5.6 DG macro … great zoom lens Tele more blurred.
- EF-S 55-250 f/4-5.6 IS … Tele Lens Blur easily available after that.
- EF 70-300 f/4-5.6 IS USM … This would be using it pretty sharp, good color .
- EF 70-200 f/4L USM … Tele Lens f4 is considered just less then . Also, this is the lens L has a color picture is pretty special, especially skin tone to see other soft velvety eyes .
- EF 70-200 f/4L IS USM … a deity.
- EF 70-200 f/2.8L USM … a deity.
- EF 70-200 f/2.8L IS USM … more heavenly.
- EF 85 f/1.8 USM … thousand little. Lens focal length is 85mm Portrait Lens popular nickname is taken place because people, especially small and f with Tele. Beautiful soft skin color photo and an additional concern is it is a little lens focal length Tele a constant plus 1.6 multiplied into 136 became a walking time taken to wash a corner together aches ล่ะ. *** If Shin will love sharp beautiful light.
- EF 85 f/1.2L USM … noticed some … f number is f widest lens is Nikon’s (as they also produce sales) is extremely cost 6 billion more than most other deity.

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Transfer macro lens macro .

(Most macro lens is the lens focal length much. Instead, the near-term focus, very near the top of . Is estimated at only 20-30cm own picture taken, it has enormous growth … added a little bit … the meaning of real lens. Macro lens is a growing high . Is enough lens features like a magnifying glass … to say this because it is. Some Macro lens focal length is only 35mm: Yea (of Olympus).

Special features of the macro lens is very sharp, and any other new store has much more detail .

Macro lens to take to shoot one time. But some people may not like. Because it very sharp. And can store details of acne or wrinkles very sharp, very .
But some people would prefer to write. It work? taken it take to get any resolution Photoshop friendly than later taken not sharp here ).

- EF 100 f/2.8 macro USM … billion end macro lenses are quite to 1 times the growth rate (1:1) as the lens as to only about 0.28 times (approximately 1:3 to 1:4) sharp. very beautiful color (someone had said that this lens quality roughly equivalent to the German Carl Zeiss lens ever.
- EF-S 60 f/2.8 macro USM … thousand middle. Made for the camera multiplier . Term will not fall far 100 macro definition, but equally and growing same as 1.

(Macro lens with high focal length will have an advantage is the phase shift is far better than making transfusion insects. Because insects do not fly away to where . But the disadvantage is the need to speed up the shutter speed rule = 1 / Focal Length.

The macro lens with focal length will be less advantageous term recession is not far taken place around the house easy to play good photo shoot flowers, toys, comfortable speed without services. Because the focal length and less than a similar perspective on the eyes to see. Ratio is realistic if the flaw is to remove the insects are difficult to shoot a little concern. It must be very close to the bit. Insects may fly away at ).

- Tamron 90 f/2.8 DI macro … thousand little. For lovers Macro Tab Author not available, but the Canon sharp focus and then filed cylinders. (More ซะ filed with), but it is more than write another growth rate of nearly 1 billion times as .
- Sigma 70-300 f/4-5.6 DG macro … macro expansion equal 0.5 times (1:2) .

If that is recommended for people generally.

View photo … EF-S 10-22 or Sigma 10-20.
Generally taken … EF-S 18-55 IS or EF-S 17-85 IS or Tamron 17-50 f/2.8.
… Statements taken far more EF 70-200 f/4L low budget EF-S 55-250 IS.
Statements taken many people … EF 70-200 f/4L statement EF 50 f/1.8 or less like it very EF 85 f/1.8.
Taken out in a single macro … EF 100 f/2.8 macro.

(Case statements are very little options as hospitable friendly write).

But.

Is really recommended to use the kit lens taken months to two months before washing . Then purchase additional lenses. Then we will know yourself that what we love transfusion. Easier to choose. And not waste glue beyond reason (during this Kit IS good ).

Such as Normal, Tracy want to use only port 50 f1.8 was a little difficult to zoom not. But images taken out pretty sharp people behind Blur .

Wide use is taken out before any kit. Is much wider than the compact camera .

Tele should have but do not push any . People we do not want to zoom all the time what the size (70-300 think if a compact camera will be approximately 12x much is ..).

If this macro and love it should not take it last because no expensive.

Finally … a camera. How devices. If not taken. To use expensive lens is not image how beautiful. If taken as a kit with the 50 f1.8 is just surfing world .

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