Source: http://imaging.nikon.com/products/imaging/lineup/digitalcamera/slr/d5000/compatibility.htm

Nikon D5000 Main Features:

We’ve seen the leaked photos of the D5000′s in the wild, but the official announcement came through from Nikon about the D5000. The D5000 features a 2.7-inch vari-angle LCD monitor that allows you to shoot easily from any angle you can work your way into.

Also making an appearance is the D90′s groundbreaking HD movie capability, Nikon’s proprietary D-Movie function. The D9000 features a12.3MP sensor and high-sensitivity between ISO 200 and 3200, which can be extended to ISO 100 and ISO 6400 equivalent. The new D5000 also gives the user a wide variety of photo editing options within the camera for the quick adjustments post-shot.

The D5000 will be available later this month, and will cost $730 for body only, or $850 for body and the f3.5-5.6G 18-55mm VR lens. The D5000 is positioned as more of a consumer level camera that will fill the gap between entry level and professional grade cameras. The D5000 is sure to be a popular choice for photography enthusiasts.

source: http://www.slashgear.com/nikon-announces-d5000-1741189/

source:http://ezinearticles.com/?id=2205422

Do you ever feel indecisive when selecting a lens for your DSLR? I know it is very annoyance, because cost of lens is one of the consideration.

So, before choosing a lens, ask yourself what you need, what is the object you want to captured using the lens? So, below is the three main factor that need to be considered before you buy your lens to suit your DSLR camera.

1.Focal Length
2.Prime or Zoom
3.Maximum Aperture

Focal Length
Distance of the objects is the impact to decide the focal length. Nearer object using shorter focal length, and further object using longer focal length. So, how to decide the number of focal length? Here is some example.

below 35mm: Landscapes and Interiors
35mm to 70mm: Portraits
70mm to 300mm: Portraits and Sports
300mm and higher: Wildlife and Sports

Prime or Zoom
Prime lens is the lens that cannot zoom in or zoom out, but Zoom lens can do so. Zoom actually is controlling the focal length. Probably people will ask, why still have to choose for prime lens if I got better choice that can be zoom as I like? Here is some simple comparison.

Cost: For same specification, prime lens is cheaper than zoom lens.
Quality: Most people are agree this, the picture taken by prime lens is better than zoom lens.
Weight: Prime lens is lighter, zoom lens is heavier.
Speed: In term of aperture, prime lens is faster than zoom lens.

Flexibility: If you want to capture photo for all focal length such as landscape, interior, portrait, sport. You just need one zoom lens to zoom in and zoom out. If you prefer prime lens, may be you need three.
Price: Do you think total cost for three prime lenses will cheaper than one zoom lens?
Portability: Do you think carry three prime lenses will easier than one zoom lens?

Maximum Aperture
Now what is the reason we have to decide the maximum aperture for a lens? Because the lenses have the wider maximum aperture normally are costly. Wider aperture allow more light in, narrower aperture allow less light in. If you taking indoor picture, the light condition indoor is not as good as outdoor, so you need wider aperture to let more light in, if not, the picture you taken will look dark.

Another reason is to suit shutter speed. We need faster shutter speed to take picture for fast object. When your shutter speed is set to very short period, example 1/2000 second (just 0.005 second), and you do not set your aperture wider, then the picture you taken will become underexposure, it look dark.

Last, is about the depth of field, the blurry background is caused by this impact. Wider aperture is decrease the depth of field, background blurry; narrower aperture is increase the depth of field, background clearly.

As conclusion of this topic, it is all about the monetary problem. If I do not consider about my economy status, I will choose focal length with 18mm – 300mm, zoom lens, maximum aperture by 1. But reality is cruel, I have to be more intellect, so I choose focal length 50mm, prime lens, with maximum aperture by 3.5.

DSLR Lens Study

Article Source: http://EzineArticles.com/?expert=Chuan_Wen_Ng

source: http://en.wikipedia.org/wiki/Canon_L_lens

An L lens is a line of SLR photography lenses made by Canon. L lenses are Canon’s top-of-the-line lenses. The “L” officially stands for “Luxury“, a reference to the lenses’ high price and build. Some have rumoured that “L” originally stood for “asphericaL” but this is patently false and has never been substantiated. The use of “ASPH” was common to notate aspherical elements throughout Canon’s and other manufacturers’ histories. Canon produces both L-series zoom and prime lenses for their obsolete FD lens mount and for their current EF lens mount used on all Canon EOS cameras (digital and film).

As of 2007, Canon has not produced any L-series EF-S mount lenses, though the EF-S 17-55mm and EF-S 10-22mm both contain the same high-quality glass elements used in L-series lenses and have comparable image quality to some L-series lenses.Some regard the decision to not designate these lenses as L-series and build the body to L standards a marketing decision.

The lens on the Canon PowerShot Pro1 was designated L-series, and was the first fixed (non-interchangeable) lens so designated.

L-lenses have superior optical performance and are typically built with a solid construction to withstand constant use and harsh conditions. They can be recognized by a red ring around the front part of the lens. Most recent L lenses have sealing to help resist dust and water. L-lenses are typically used by professionals and serious amateurs due to their high price and large mass.

Most L series lenses share a number of common characteristics:

- Tough build, made to withstand the trials on the fields (some incorporating dust and moisture resistant rubber seals).
- At least one fluorite or ultra-low dispersion glass element, combined with super-low dispersion glass and ground aspherical elements.
- Non-rotating front elements, which are optimal for some filters (e.g. circular polarizers).
- Relatively large apertures compared to other Canon lenses in the same focal lengths.
- Where included, true ring-type USM (ultrasonic motor) and full-time manual focusing.
- Three additional data communication pins on Canon Extender EF compatible lenses, compared to the standard EF mount.

There are some lenses which include one or more of these technologies but which are not designated L-lenses. L-lenses are often equipped with USM and/or IS, but the optical performance is the key criterion.

Larger sized L-lenses, such as the 70-200 mm and 100-400 mm zooms and longer focal length primes (300 mm+), usually have an off-white barrel (sometimes referred to as the color “putty”) to reduce heat absorption under the sun that may otherwise affect the performance of the lens, as well as to identify Canon’s lenses (for example at sporting events). However, shorter focal length L-lenses can be black (such as the Canon EF 24-70 mm f/2.8L and all L-lens primes under 300 mm, with the exception of the discontinued 200 mm f/1.8L and newly announced 200 mm f/2.0L IS.). Therefore L-lenses can be identified by either a lens barrel’s off-white colour or, as on all L-lenses, the distinctive red ring on the lens barrel.

Wide angle L-lenses typically have a gelatin filter holder on the mounting point of the lens, which allows the photographer to cut a small, square piece of gelatin out of a larger filter sheet and place it on the lens. On film cameras, these are typically used to correct the color temperature, but on digital cameras this is largely unnecessary, as the color temperature can be corrected in software. The mount is still commonly used for neutral density gelatin sheets though, especially on certain wide-angle lenses where the protruding front element precludes the use of any screw-in filters. Telephoto L-lenses typically do not have gelatin filter holders, to maintain compatibility with the Canon Extender EFs.

I would like to share some black and white picture grab from Black&White Photography. Thanks once again to Ron, the photographer of these cool and nice picture, allow me to share his arts at my blog.

Looking for more? Kindly visit Black&White Photography.