Pages

Sunday, January 30, 2011

Digital Cameras - Fixed Lenses Vs Zoom Lenses



Digital Photography Secretsby David Peterson Click Here!

Most Cameras come with a zoom Lens as standard. However, you might want to think the alternative to these - the fixed Lens Camera. Here we will interpret which is the best for you.

First, in brief a zoom Lens is the key highlight on a Digital Camera as it adds gargantuan flexibility to your Photography. Most contract Digital cameras have optical zoom lenses; that's a lens that can vary its field of view in order to magnify ('zoom in') or broaden ('Zoom out') a scene. These are ideal for when you cannot get close to your field or want to consist of more of it in the shot, making the camera very versatile.

Zoom Lens

We have seen the flexibility a zoom lens has to offer, but there are a merge of benefits offered by a fixed lens Digital camera which are not ready to most zoom optics. These are a higher optical capability and a contract size. A good example of a fixed lens digital camera is a Canon's Ix Us i5; it has a high capability build, contract and beloved design, and a curious 39mm lens.

Digital Cameras - Fixed Lenses Vs Zoom Lenses

Advantages

Better optical capability results from the lens not being the optical equivalent of a jack-of-all-trades. A zoom must do a multitude of optical tasks and, in order to achieve them, compromises are made in the lens designs which affect optical quality. No such compromises are made in a fixed lens. Having one focal length, regularly a wide view between 28mm and 35mm, means that the lens is made specifically for that length, making it sharper (for more detail) and brighter (to let in more light) than the zoom lens equivalent. They often have a wider field of view too. contract sizes are possible because the build does not cater to the mechanisms needed to zoom the optical train back and forth. Battery power lasts longer too for the same reason.

Disadvantages

Fixed lens digital cameras can seem expensive, largely due to the cost of their optics and the fact that fixed lens digital cameras are often prime models. Other notice is that there are fewer fixed lens digital cameras on the market. In addition, as already discussed, a fixed lens camera does not have the convenient flexibility of a zoom. Because of this, most population are willing to live with the compromises involved in a zoom camera.

The economy Option

There are many very cheap non-zoom digital cameras on the market. They tend to use digital zoom to make up for the lack of an optical zoom. We've discussed the problem with digital zoom already, and with very cheap fixed lens digital cameras you of course get worse optics, poor image processing and even poorer results. These are best avoided.

So, why purchase a fixed focal distance lens when you could get over fifty separate focal lengths with a zoom lens? There are in fact several good reasons to opt for fixed lenses over zoom lenses. The first good presume to go for a fixed wide-angle lens instead of a zoom wide angle is because fixed lens are faster and they show more depth. The differences between the two kinds are regularly very subtle, but it does make quite a difference. Since the zoom lenses turn focal lengths as they shift they tend to flatten the depth of field and turn the perspective. With a fixed lens, there are not any curious parts and therefore better operation on their one focal length.

Thanks for reviewing this article, I hope you found the facts beneficial and of great use.

Digital Cameras - Fixed Lenses Vs Zoom Lenses



Digital Photography Secretsby David Peterson Click Here!

Visit : Compare Digital Camera Best Buy Panasonic Lumix DMC-GH2 Acropolis Definition Extension Tube

Tuesday, January 25, 2011

Tamron 28-300mm Vc - excellent Super Zoom Lens For Full Frame Dslr



Digital Photography Secretsby David Peterson Click Here!

Today I tried the Tamron 28-300mm Vc Lens on my Nikon D300s Camera. The Vc modernize is only available for Canon and Nikon users. The Vibration compensation (Vc) feature is well worth the money I paid for it.

This description will be a short review on this Lens.

Zoom Lens

I found the optic quality of this Lens to be great so I tested it with both full frame (Nikon D700) and cropped sensor Cameras (Nikon D300s). To my surprise, the images came out very sharp on both Cameras. To a normal viewer, the image quality of the Lens is comparable to a expert lens. The super zoom range was just perfect on my full frame camera.

Tamron 28-300mm Vc - excellent Super Zoom Lens For Full Frame Dslr

However, I found the zoom distance to be a bit awkward for a cropped sensor camera. If you want a good range, look at the Tamron 18-270mm Vc lens instead. This lens will give you a good zoom range for a cropped sensor Dslr. Although the 18-270mm Vc has a good range, I've found the lens' optic quality to be less sharp than the Tamron 28-300mm Vc.

When doing the review, I'm mildly surprised that this lens has a fast and strict autofocus mechanism. Here's one tip on autofocus: In low light, switch to by hand focus. This will preclude autofocus hunting (due to the lens' small aperture).

In terms of sharpness, I found the town and border sharpness to be excellent. The distortion is also minimal.

Another very handy feature is the zoom lock mechanism. I'm not afraid of zoom creep, especially when transporting the lens. The lens is also very light weight, making it very easy to handle.

As a final opinion for this review, I rate this lens as a great value proposition, ideal for non-professional use and Travel.

I don't propose this for expert use because the slow cleft speed makes it impractical for use in most expert Photography situations. Nor does it make sense to use this lens in greatest weather.

Tamron 28-300mm Vc - excellent Super Zoom Lens For Full Frame Dslr



Digital Photography Secrets by David Peterson Click Here!

Related : Compare Digital Camera Best Buy Panasonic Lumix DMC-ZS7

Wednesday, January 19, 2011

The Best & Worst Digital Camera Telephoto Lenses of 2009



Digital Photography Secretsby David Peterson Click Here!

Before showering praise or annotation on any exact telePhoto Lens, it may be worthwhile to expel a few words on exactly what a Camera telePhoto Lens is, and what it does.

In a nutshell, a telephoto lens brings the branch targeted by the photographer, closer to that said photographer. And as a result, produces a still picture or video for any subsequent viewers that is larger, more detailed and exhibits greater clarity then could have been achieved without the benefit of an supplementary lens. A somewhat more technical definition would be a lens that is built from a rather long focal distance lens, but where the actual tangible distance of this lens is less than the desired focal length. That is not to suggest, that every lens with a longer focal distance than normal is a true telephoto lens. A true telephoto lens will include a blend of rear lenses ofter referred to as the telephoto group.

Zoom Lens

There are a few points to consider when buying a Digital Camera telephoto lens.

The Best & Worst Digital Camera Telephoto Lenses of 2009

It's prominent to know what Camera or Cameras, you intend to use the lens with. Distinct makes, models, and manufacturers often have their own lens mounting systems. Some maybe uncomplicated screw lenses, while others may have more explain mounting mechanisms.

Consider the branch environment you will be shooting in. While telephoto lens lend themselves to exact types of subjects, such as sporting events, wildlife photography, watch work and scenery vistas, that's not to suggest that they aren't also used for fashion or wedding photography.

If you never used a zoom lens much in the past, then sales staff can be an invaluable resource. They cope this type of tool on a daily basis, are often more than will to share their opinions. They may be somewhat biased, especially if their working on commission, so be sure to take what they say with a grain of salt. A good source of unbiased facts can be found online. The more reputable online sites like Amazon, include tons of real users who often share their product experience in online reviews.

Reading manuals for the exact models can be helpful as well. Most manufacturers these days, place their product manuals online in Pdf form. If you Google colse to a bit online, you should be able to find the manual of the product your finding for.

Now speaking of the best lens I and a estimate of happy customers would suggest are:

Canon Ef 70-200mm f/4L Usm Telephoto Zoom Lens for Canon Slr Cameras
This lens is great for whatever who wants to try out a L-series lens in the 10-200 mm focal distance range, and not spend a whole ton of money. At the time of writing this, I'm finding this lens for under 0. Additionally, if your tired of hauling colse to the much heavier 70-200mm f/2.8L Is, this may be a best lens for you. Remember, this lens doesn't include Is, so that may or may not be a deal breaker for you.

Canon Ef 70-200mm f/2.8L Is Usm Telephoto Zoom Lens for Canon Slr Cameras

If money is less prominent than the quality of your photographs, then it may be time to step up to this lens. It goes for colse to 00 new, or a combine hundred less used. It does any way include image stabilization, which is prominent if a Tripod is not an choice for your photo shoots.

Canon Ef 100-400mm f4.5-5.6L Is Usm Telephoto Zoom Lens for Canon Slr Cameras

Some of the things to certainly like about this lens, include the remarkable sharpness and clarity. An auto focus that is both darn near silent, and fast. Also included is a dual image stabilization system. It is on the downside of policy a heavy lens, which I'm sure your well aware of, if you've been doing your investigate with other telephoto lenses in this category.

The Best & Worst Digital Camera Telephoto Lenses of 2009



Digital Photography Secrets by David Peterson Click Here!

Tags : Compare Digital Camera Best Buy Acropolis Definition

Thursday, January 13, 2011

Zoom Lens With Dslrs May Offer a Surprise



Digital Photography Secretsby David Peterson Click Here!

If you are shopping colse to for your first ever Dslr Camera, then there is one factor that you might want to learn about and that is the "crop factor." The hypothesize that this feature is leading is that it might give you a dissimilar Lens performance than you expect. When it comes to covenant Digital Cameras, what you see is that you get and if the covenant Camera comes with a 35mm equivaLent Lens, then you would get the same performance as a 35mm Lens. However, this is not necessarily true in the case of Dslr Cameras.

The sensors of most Dslr cameras is smaller than a 35mm film and a camera with 1.5, 1.6, or 2.0 crop factor will capture smaller area and "crop" the view. If you use a lens with 100mm focal length and the camera has a 1.5 crop factor, then the final, adjusted focal length would be 150mm. The Photographers that are likely to take more indoor or landscape Photos are the ones that should be typically involved with the crop factor or at least take it into inventory when buying lenses for their Dslrs. However, if you take more wildlife, portrait, or macro shots, then you might not have to worry about this issue at all. One way to work colse to it though, is to buy a Dslr that has a zero crop factor, or a full-frame Dlsr. These cameras typically cost more and depending on your needs, purchasing one might not be justified at all.

Zoom Lens

Another fact that is good to know is that all camera manufacturers use a consistent crop factor for their cameras and therefore the whole does not vary from one camera model to another within the same brand. The terms focal length multiplier and focal length conversion factor are often used instead of "crop factor" and the most common numbers are 1.5x, used by Nikon and Sony, 1.6x, used by Canon, and 2.0x, used by Olympus.

Zoom Lens With Dslrs May Offer a Surprise
Zoom Lens With Dslrs May Offer a Surprise



Digital Photography Secretsby David Peterson Click Here!

See Also : Compare Digital Camera Best Buy Panasonic Lumix DMC-GH2 Sigma 70-300mm f/4-5.6 SLD DG Macro Lens

Friday, January 7, 2011

Zoom Digital Cameras - What You Need to Know About the Zoom Lens



Digital Photography Secretsby David Peterson Click Here!

A zoom Lens is a mechanical assembly of Lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed focal length (Ffl) lens. A true zoom lens, also called a parfocal lens, is one that maintains focus when its focal length changes. A lens that loses focus during zooming is more properly called a varifocal lens.

A zoom lens is a key highlight on a Digital Camera as it adds mountainous flexibility to your Photography. Here is what you need to know about them.

Zoom Lens

Most compact Digital Camera have optic zoom lenses; that's lens that can vary its field of view in order to magnify ('zoom in') or broaden ('zoom out') a scene. These are ideal for when you cannot get close to your subject or want to comprise more of it in the shot, making the Camera very versatile.

Zoom Digital Cameras - What You Need to Know About the Zoom Lens

Focal Lengths:

Zoom Digital Cameras have their focal lengths (the range through which the optics in a lens can move) specified by comparison with the focal length of the well-known ('35mm') film camera. They are indicated on the camera lens in millimetres. Whilst this may sound confusingly technical, helpfully all you need to know is simplified in the descriptions of Digital cameras by using terms such as 'two times' (abbreviated to '2x') or four times ('4x') and so on and so forth. The wider the focal range, the greater the 'x' factor (or 'times' factor) becomes and the greater the apparent magnification.

Here is an example to make all this clear. A digital camera with a zoom lens which has a 35-105mm focal range is said to be a '3x' optic zoom lens, because the top focal length outline is three times the lower focal length, i.e. 35 x 3 =105. A 28 - 112mm lens would be a '4x', for example, and so on and so forth. The optic zoom range available to digital cameras is growing as lens technology improves and there are now many digital cameras with so called 'ultra-zoom' ranges with up to 12x optic zooms, offering a focal range of round 35mm to 420mm! The most tasteless digital cameras have 2x or 3x zoom lenses, and while they can't zoom as much as an 'ultra', they are less expensive and just as much fun to use.

Optical Zoom or Digital Zoom?

Digital cameras, practically without exception and together with those that already have an optic zoom lens, have a highlight called digital zoom. This can electronically progress a quantum of the sensor's image to yield a zooming effect. optic zoom works by using the lens to magnify the scene and it utilises the whole sensor area for the image, retaining full image quality and resolution. Digital zoom enlarges a small, central quantum of the sensor instead. Therefore, it will yield blocky, grainy images and should be avoided if top quality prints are required.

Remember, buying a digital camera with an optic zoom lens will give you great flexibility in your shot taking, and the larger the zoom range, the greater the flexibility you will have.

Zoom Digital Cameras - What You Need to Know About the Zoom Lens



Digital Photography Secrets by David Peterson Click Here!

Visit : Compare Digital Camera Best Buy Panasonic Lumix DMC-GH2 Panasonic Lumix DMC-G2

Saturday, January 1, 2011

Zoom In With a Canon Lens - 70-300mm Is Produces Surprising Results



Digital Photography Secretsby David Peterson Click Here!

There have been tons of reviews written as reviews for Cameras and Lenses. It is refreshing when person departs from the geeky, techy writing pattern and just gives their conception in plain English.

I am hoping this report, I'm not going to cal it a review, will make sense to the average Camera buff, or person who is even struggling to figure out which Lens is best for their needs.

Zoom Lens

It's about Canon lens - 70-300mm zoom lens for Digital Slr Cameras.

Zoom In With a Canon Lens - 70-300mm Is Produces Surprising Results

To start with the Pros:

The lens has indeed good optic quality. It compares very nicely to Canon's very extremely rated 70-200mm lens lineup, of which there are now 5. Many reviews indicate that the 70-200mm lenses are much better, but just read what the citizen who have bought the Canon 70-300 say, and you should be surprised at how much they all like it.

When comparing price in the middle of these lenses, the 70-300mm is economy than all but the 70-200mm f/4 (without Is).

One more comparison with the 70-200mm lenses, it is less bulky and much easier to cope for long periods of time, especially if you correlate it to the f/2.8 versions of the 70-200. Those are quite heavy.

On the Con side:

The lens is one that extends when it zooms. Many Photographers like zoom lenses that have an interior movement for zoom, meaning the lens never changes size. Also, there is no hood with this one.

Take your time doing your explore before you make your decision about buying any lens. One place I suggest you look is the online Camera market like Amazon and B & H Photo. Look for the user reviews for the goods you are mental about. These citizen do not get paid for their opinions, so there is no guess for them to originate their stories.

The Canon lens 70-300mm is great for person who shoots a wide collection of pictures.

It works indeed well for portraits (super at about 150mm). Excellent for sports, especially outdoor sports like kids soccer or baseball. Not as good for indoor sports unless the lighting is good. Many use it as a nature lens for birds in flight or even pictures at the zoo when you can't get very close to the animals. It works for road Photography when you want to be the "unnoticed" photographer.

Finally, the Canon 70-300mm is excellent for person on a budget that does not have the funds to purchase the Canon "L" lenses that pro photographers value so highly. Until you get to the point that your images are making you a comfortable living, reconsider the Canon lens - 70-300mm f/4-5.6 Is. You won't have any buyer's remorse if you do.

Zoom In With a Canon Lens - 70-300mm Is Produces Surprising Results



Digital Photography Secrets by David Peterson Click Here!

My Links : Compare Digital Camera Best Buy Sigma 70-300mm f/4-5.6 SLD DG Macro Lens Panasonic Lumix DMC-GH2