Some reflections for Choosing a digital SLR camera

Oct 5, 2009 Author: comparedslr | Filed under: General

There are a wide range of options and features for DSLR (digital single-lens reflex) cameras, and can be confusing when you buy this type of camera for the first time. This guide will help you decide to attend important functions for you and hope you choose your ideal digital SLR camera.

Price
A key factor in your decision is of course the price. Digital SLR cameras start at about $ 400 and can be up to 8,000 dollars for a roof of a camera. A camera between $ 400 to $ 1000 would be a good choice for a newcomer. The lenses are usually expensive and can cost more to make sure that the camera is taken into account the fact that if you make your budget.

Format Size
There are four sizes in time for the equipment reflex 35 mm.

Full Frame –
This format, with a sensor of 36 mm x 24mm format sensor, which is found on most higher-end cameras, and is the same size in 35 mm film cameras.

APS-C
On a Canon camera, this format has a sensor, 22.5 millimeters x 15 millimeters and a Nikon 15.6 millimeters x 23.7 millimeters. This format is used by digital SLR cameras with the exception of some upper and Olympus cameras. Give it a Nikon DX format.

APS-H
This format is only a bit ‘like the Canon EOS 1D Mk III has recognized and has a sensor of 18.7 mm x 28.7 millimeters.

Four Thirds
This is a smaller size was 13.5 mm x 18 mm and is located on the Olympus and Panasonic. The aspect ratio of 3:4 as opposed to other cameras with an aspect ratio of 2:3.

All print sizes are better up to 11 “x 14″, who need the biggest, most amateur photographers will be in general. Most cameras below about $ 1000 using the Four Thirds or APS-C, so the choice is usually dictated by price rather than performance.

Image Stabilization Systems
Systems, image stabilization will vary between manufacturers. Some systems are also on the camera lens is mounted. Nikon and Canon uses a system based on slow and feel the roundabout on the lens, movement and keep the light clusters stable. Gyros mounted on the aircraft are used by Sony, Panasonic and Olympus in a stabilization system that moves as the sensor. The layers of the sensor to compensate for any movement. Although the two systems work as well as the objective mounted systems must be included in each objective, which increases costs. Moreover, not all the objectives of the system have included Prime lenses primarily under 200 mm.

Size and weight
Thirteen cameras are usually smaller and lighter, however, why not slip into a pocket DSLR in any case, is not the size of primary importance.

Number of pixels
Digital SLR cameras start at about 6 megapixel (MP) and can be up to 22 MP for a high-end. The number of pixels that will dictate the size, the pressure may be exaggerated and need to decide how big you want your prints before deciding which model to buy. 240 pixels per inch gives a good print quality, as a 6 MP camera is a high quality 8 “x 10″ print is sufficient.

If you are a big draw a 10 MP camera is to produce a good print result at a height of 11 to win “x 14″. A list of the top camera with a number of print pixels 22 MP superb 11 “x 14″.

ISO settings
ISO 100-1600 are available on most cameras, the lower end. Midrange cameras can adjust the settings of 6400 and a camera can scale up to 25,500 and the lowest 50 Most digital SLR cameras are images with little noise at ISO settings from 100 to 800, but the noise increases dramatically on it. The noise at higher levels can also vary between models, if possible, try to imagine a greater acceptance with the cameras you’re considering knocking.

Noise
All digital images have some ‘noise, which may be more sensitive to higher ISO settings. Noise electronics and sensors, if the digital signal generated by the analog signal. Tutte le fotocamere digitali reflex dispongono di sistemi di filtraggio del rumore, ma funziona meno bene nel 800 uno settaggio ISO di circa il rumore ammorbidisce l’immagine per cercare di vedere le fotografie scattate in condizioni di scarsa luce se si sono con le impostazioni più alti ISO.

Autofocus
Autofocus systems vary between manufacturers. All systems are suitable for autofocus static images, but can vary widely for moving subjects, especially in low light. Check reviews of cameras to see how it works and AF for the model that you are considering.