beatgoeson, za 24 March 2010 - 13:35, kaže:
Dakle, slična situacija, kao kada se na tzv. "fi-fi" forumu pojavi lik sa standardnim uvodom "nemam pojma šta hoću, ali bih voleo..."
Primetio sam da ovamo zalaze i neki ljudi koji se razumeju u foto tehniku, pa evo:
Ukratko - treba mi aparat sa cenom za amatere, a mogućnostima kao za profesionalce.
Da probam ozbiljnije. Malo sam pogledao koji su parametri u igri. Najbolje da kažem za čega mi treba: Snimanje u sobnim uslovima, bez blica, radi izbegavanja odsjaja u oku. Tu se ide, koliko sam shvatio, na povećanje osetljivosti, što povlači veću brzinu okidanja. Zanima me koje su vrednosti u pitanju (osetljivosti i brzine), jer aparati u rangu 300-400 Eur imaju max 1/2500sec. dok oni koji imaju 1/8000sec. koštaju preko 1000Eur.
Može i neki predlog konkretnog aparata. Kvalitet objektiva isto nije nebitan. Dakle, ako ima nešto vredno pažnje do 500-600Eur, molim za predlog.
U nekom maglovitom planu imam i neki dodatni, kvalitetniji ojektiv, za eventualno snimanje u prirodi, dakle - sa nekim značajnijim uvećanjem. Mrzelo me da tražim objašnjenje, na koji način se to uvećanje iskazuje, naišao sam na neke nejasne decimalne iznose...
Toliko za sada, hvala unapred.
600 EUR = 805.43939 USD
kad bih vec stigao do te cifre skupio bih jos malo para i
kupio bih ovo :
Canon Rebel T2i 550D Overview
Previewed by Mike Tomkins and Shawn Barnett
The Canon EOS Rebel T2i takes the reins from the company's existing T1i model as the flagship of its consumer-oriented EOS Rebel camera series. Externally, the Canon T2i looks very much like its predecessor, being almost identical in overall size but with softer, more gently rounded shoulders. Under the skin, the Canon T2i brings a few features from Canon's prosumer EOS 7D model into a Rebel-class body, creating a baby brother to the 7D.
Sporting an 18-megapixel sensor similar to the 7D, the Canon Rebel T2i doesn't shoot quite as fast as its big brother, but its frame rate is slightly increased over the T1i, from 3.4 to 3.7 frames per second despite the resolution increase. A new 3:2 ratio LCD also changes the dimensions of the new camera, which now has 1.04 million dots of resolution.
Card compatibility on the Canon T2i includes SD, SDHD, and SDXC, and a new Eye-fi status screen improves user awareness of these special wireless SD cards.
The Canon T2i's ISO ranges from 100 to 6,400, with a special high ISO option of 12,800. Movie mode also has expanded ability, covering 1080p recording at 24, 25, and 30 fps, rather than the T1i's more limited 20 fps. Manual video exposure is also available, as is an external mic input jack.
There's a lot more to cover on the Canon T2i, so be sure to read our preview below.
Availability for the Canon EOS Rebel T2i had not been announced at press time. Pricing is expected to be in the region of $899, with the same EF-S 18-55mm f/3.5-5.6 IS kit lens that ships with the T1i. The Canon EOS Rebel XSi has now officially been discontinued, leaving the flagship T2i with two Rebel-class siblings: the Rebel XS being the entry-level, and the T1i remaining available as the mid-level model.
Canon Rebel T2i 550D Preview
by Shawn Barnett and Mike Tomkins
Preview Date: February 8, 2010
Calling it a "Mini 7D," Canon introduced the Rebel T2i, the highest resolution consumer SLR, and the highest resolution SLR under $900, period. The 7D association comes primarily from Canon's use of an 18-megapixel sensor that they say is essentially the same spec as the sensor in the 7D, the only difference being that the readout speed has been cut in half. From there, the Canon T2i shares more with the Rebel T1i than with the 7D. The major exception to that is the movie mode, which now supports 1080p at 24, 25, and 30 frames per second, while the T1i only did 1080p at 20 fps.
Walkaround. From the front the silhouette of the Canon T2i is very similar to the T1i, but there are a few unusual differences. CIPA standard weight is 18.7 ounces (1.2 pounds; 530g), which means with the battery and a memory card, but without the lens. With the lens, battery, and card the Rebel T2i weighs 25.7 ounces (1.6 pounds; 730g). The Canon T2i's dimensions are 5.1 x 3.8 x 3.0 inches (130 x 97 x 76mm), perhaps a little shorter and a little thicker than the T1i.
Immediate differences from the front include a new knurl on the Canon T2i's Mode dial, even more rubber grip area, slight nudges of the IR remote window and Self-timer lamp, and the combining of the nameplates into one, rather than two separate badges on the right side. New is the strangely contoured panel on the lower right in the above image, perhaps to reinforce and soften the area where your palm rests when you're controlling the Canon T2i's lens. Nikon has for several years deliberately cut out this area to provide palm relief, so perhaps Canon is doing the same.
Very few differences appear on the top of the Canon T2i, except for a few contour changes to the body shell. The mode dial has a black background rather than a silver one. The Canon T2i's 18-55mm IS lens is unchanged, though I have to wonder whether it will hold up under the scrutiny of the 18-megapixel sensor.
Most of the retooling and rethinking can be found on the back of the Canon T2i. Though its subtle, Canon's switch from a 4:3 screen to a 3:2 screen has a dramatic effect on where some of the controls land, and may contribute to the one millimeter reduction in the Canon T2i's height.
Button design has changed quite a bit on the Canon T2i, moving from primarily circular buttons with nothing printed on them to larger shaped buttons, some with words and icons printed on them. It does make the labels clearer, especially with reduced real estate for labels next to buttons because of the wide-aspect LCD. Live View/Record start has a new button in prime position for easy thumb activation, just right of the optical viewfinder. In its old place is the new Quick Menu button, an innovation added on the Canon 7D. This allows easy adjustment to the Canon T2i's settings via the Status display, which transforms into a Quick Menu screen with a press of this button. All other buttons are in the same positions relative to the T1i. The speaker holes on the rear, though, go from four holes to nine holes, presumably for better sound transmission.
Sensor and processor. The Canon EOS T2i's design is based around a DIGIC 4 image processor and a newly developed CMOS image sensor that's very closely related to the chip previously seen in the EOS 7D. As with that camera, effective resolution is 18.0 megapixels -- a modest upgrade from the 15-megapixel imager of the T1i. Maximum image size in pixels is 5,184 x 3,456. Pixel pitch is 4.3µm, and gapless microlenses help boost light gathering capability.
Where the two imagers differ is in their readout method, and hence their speed. The EOS 7D's sensor has eight channel readout, key to that camera's eight frames per second burst shooting. The Canon Rebel T2i's sensor has four channel readout, which means a more modest 3.7 frames per second burst shooting -- but it's still a slight upgrade in speed from the 3.4 frames per second of the T1i. Unfortunately, the increased throughput caused by the faster burst speed and higher sensor resolution together conspire to greatly reduce the burst shooting depth as compared to the T1i. The Canon T2i can capture six RAW or 34 large/fine JPEG frames in a burst, where the T1i was capable of nine RAW or 170 large/fine JPEG frames before shooting slowed.
14-bit A/D conversion. Just like the XSi and T1i, the Canon T2i uses 14-bit Analog-to-Digital conversion when creating JPEGs, for smoother color transitions, and RAW files are saved as 14-bit files. Converting from 14-bits worth of data means that the saved images are theoretically formed from four times the color information than was available to the Canon XTi, which was only able to generate 4,096 colors per channel. The Canon Rebel T2i can recognize 16,384 colors per channel, which should mean smoother tones and more accurate color overall. Though JPEGs will still be saved as 8-bit color, RAW images will benefit more fully from the 14-bit depth, making for more accurate 16-bit images in programs like Photoshop.
Peripheral illumination correction. Brought over from the 50D, the Canon T2i's Peripheral illumination correction compensates for vignetting in the corners of a lens. The amount of correction changes depending on which lens is mounted; selecting this menu item brings up a screen where you can see which lens the camera has detected and either enable or disable this function.
Autofocus and metering. Another feature inherited from the EOS 7D is the Canon T2i's new metering sensor. Where the T1i used a 35-zone metering sensor, the Canon T2i now includes a 63-zone iFCL sensor, which stands for Intelligent Focus Color Luminosity metering. The name hints at how the sensor works: the iFCL chip has a dual-layer design with each layer sensitive to different wavelengths of light, allowing subject color to be taken into account when determining exposure. Information on focusing points is also taken into account in metering calculations, and it is in this area that the Canon T2i's iFCL chip differs from that of the EOS 7D, accounting for fewer focus points in the consumer Rebel camera than its prosumer sibling. Like the T1i before it, the Canon T2i offers nine-point focusing with a central cross-type f/2.8 focus point, rather than the 19-point AF of the 7D. The focusing screen, likewise, is of the etched variety, and not the fancy LCD overlay on the Canon 7D.
ISO Expansion. The Canon T2i has the same expanded sensitivity range as that of the T1i and 7D, from a minimum of ISO 100 to a maximum of ISO 12,800. A very useful change inherited from the EOS 7D - particularly for fans of HDR shooting -- is the T2i's expanded exposure compensation range. Where the T1i offered compensation from -2.0 to +2.0 EV, the T2i has a much wider +/-5.0EV exposure compensation range.
Creative Auto mode. First introduced on the Canon 50D, Canon's Creative Auto mode is also included in the Rebel T2i. Marked with a "CA" on the Mode dial, this mode is a cross between the Auto and Program modes. When set to CA mode, the Canon T2i allows the user to adjust the Flash, resolution, drive mode, and Picture Style. Setting aperture and exposure are converted to easier concepts of background blur (blurred or sharp), and exposure level (darker or brighter) with a slider that's adjusted with the Quick Control dial. The more complex exposure decisions remain under the Canon T2i's control in CA mode. The exposure slider is the more useful, standing in as a more comprehensible EV adjustment.
Copyright info. Like the Canon 7D, you can input Copyright information right on the Canon T2i, as well as delete it at will; it was a first for Canon's prosumer line, and now it's on the consumer line as well.
LCD. The Canon T2i also features a new LCD panel, which now offers a 3:2 aspect ratio which matches that of the image sensor, rather than the 4:3 aspect ratio panel which was used on the T1i. The new panel still has a 3.0-inch diagonal, but increases the total pixel count slightly from somewhere in the region of 640 x 480 pixels to a ~720 x 480 pixel array. Each pixel still consists of three separate colored dots (red, green and blue), for a total count of just under 1.04 million dots. The Canon T2i's 160-degree LCD viewing angle isn't quite as wide as that of the 170 angle possible on the T1i, although the reduction likely won't be terribly noticeable in use.
Improved Movie mode. Another area where the Canon EOS Rebel T2i has received significant upgrades from the 7D is in its high definition video capabilities. The previous T1i model offered a maximum resolution of 1080p (1,920 x 1,080 pixels), but with a non-standard (and rather low) rate of 20 frames per second, making this mode perhaps of limited use. Lower-resolution options of 720p (1,280 x 720 pixels) and VGA (640 x 480) pixels had a more useful 30 frames per second rate, but all video modes were also hindered somewhat by offering only automatic exposure, and monaural audio from a built-in microphone. The Canon T2i corrects every one of these issues, with a new stereo microphone input jack, manual control of video exposure available, and a wide range of standard video frame rates on offer. At 1080p resolution, the user can select between 24, 25, and 30 frames per second. For 720p and VGA shooting, both 50 and 60 fields per second modes are available. Users can also edit movies in camera, including the ability to chop off beginning or ends of movies, but only in one-second increments.
One feature of the Canon T2i's video mode isn't available in the 7D, or for that matter any other Canon digital SLR to date. Dubbed "Movie Crop" mode, this is available only when shooting at standard-definition VGA resolution, and works by simply cropping and recording the center-most 640 x 480 pixels from the sensor. This yields an effective 7x fixed zoom without interpolating the video. Of course, simply cropping the center of the image means that everything (including image noise) will be recorded at 1:1, so video will likely have noticeably higher quality with the crop disabled. Still, for consumers who may well not be able to afford expensive telephoto lenses and only need standard-def output, it could be an interesting feature.
HDMI output. The Canon T2i also upgrades the HDMI high-definition video output connectivity of the T1i, adding Consumer Electronics Control (HDMI-CEC) compatibility. In layman's terms, this allows you to use your compatible high-def display's remote control to operate certain camera functions via the same cable through which the video signal is passed. Functions that can be controlled from the TV remote include single image playback, index display, shooting info display, image rotation, slide show, and movie playback.
Lens. The Canon T2i comes with the same kit lens that shipped with the XSi and T1i: the image-stabilized 18-55mm EF-S lens that so impressed us at its debut. Equivalent to a 29-88mm lens on a full-frame 35mm camera, this is a good mid-range zoom lens that is quite light. Optical image stabilization technology delivers sharper shots even in low light. Canon claims you can shoot at up to four stops slower than normal and still get a stable shot. That means that if you can normally get a stable shot at 1/60 second, you should be able to squeeze off a 1/4 second shot and have it come out sharp. If you're a fairly steady shooter, it seems to be true. Your results may vary, and remember that image stabilization compensates for camera movement, not for subject movement, so when shooting in low light tell your subject to hold very still, or shoot with a faster shutter speed at a higher ISO.
Storage and battery. The Canon Rebel T2i uses SD, SDHC, and SDXC memory cards. This latter standard should allow card sizes up to 2 terabytes, while SDHC is limited to 32GB.
Direct support for Eye-fi wireless cards has found its way into the Canon T2i, complete with a dedicated status display that only appears if the card is installed. The new display shows when a card is connecting, is connected, is transmitting, and when a card has a problem connecting.
The Canon T2i uses a new battery, the LP-E8, a 7.2V, 1120 mAh lithium-ion battery with concealed electrical contacts. Expected battery life is 550 shots at 72F, and 470 shots at 32F. The Canon T2i's new battery means that the camera requires a new grip, the BG-E8. It duplicates the
shutter release and control wheel, as well as AE lock and focus point buttons for vertical-format shooting. Those who have trouble with the smaller grip on the Canon Rebel series will find that the battery grip makes the camera more satisfying to use; and those who shoot vertical frequently will enjoy the vertical shutter release, which allows you to shoot with less strain. A new optional infrared remote, the RC-6 is also available for the Canon Rebel T2i, said to combine the features of the older RC-1 and RC-5 wireless remotes.
In the Box
The Canon T2i retail package contains the following items:
- Canon Rebel T2i digital SLR camera body
- EF-S 18-55mm f/3.5-5.6 IS lens
- Body cap
- Lens caps (front and back)
- Neck strap
- Eye cup
- LP-E8 battery pack and charger (International charger shown at right)
- Video cable
- USB cable
- Software CDs
- Instruction manuals and registration information
Analysis. Once again, Canon raises the bar at the consumer level, in both still-image resolution and video resolution and frame rate. Though it comes at a noticeably lower price, the Canon T2i now handily trumps the competition from Nikon and others, and offers some timely features worth noticing. The Eye-fi status display stands out as a great idea that seems rather obvious in hindsight, but technical achievements like the iFCL metering, which helps autofocus accuracy by detecting the type of light, is where the Canon T2i should really impress. If the image quality comes as close to the 7D's as the T1i's did to the 50D's, the Canon T2i should turn out some excellent quality pictures.
http://www.imaging-r...DS/T2I/T2IA.HTM
P.S
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