I have had my Sony DSC-TX7 from Amazon a few days ago. First impression - it is very small and thin. Feels very solid and a dark blue color looks pretty good. A bracelet that is already fixed at the factory, otherwise it can easily slip out of hands. It's pretty good for a party - you can put it in your pocket and do what you want, even dance, and this camera will not annoy you with their presence.
Advantages:
- Very attractive stylish and robust design, especially in dark blue color
- Ultra-slim body fits all small pocket
- Dust free lens when the lens is not preferable
- Big high resolution 920k colorful screen looks like a small TV
- Fairly fast startup time, no shutter layer, up to 10 frames per second in burst mode
- Accepts SD / SDHC memory cards and Sony's proprietary Memory Stick
- Wide 25mm (equivalent) lens - great for indoor and festivities
- High-precision autofocus and effective image stabilization
- Sophisticated noise reduction algorithm improves the high ISO image quality
- Advanced Handheld Twilight mode for low-light images
- Special Lens Correction HDR mode for scenes with high contrast
- Wide auto-stitches panorama mode
- High quality front-side stereo microphones
- Smooth and quiet zoom lens, autofocus and optical image stabilization
- Very nice Full HD 1080 60i video
- Unusually good video quality and high sensitivity in VGA mode
- Intuitive thought out menu with user-friendly touch-screen
Cons:
- New "Exmor R" sensor works much faster, but noisier than CCD them
- Aggressive noise reduction tends to obliterate small picture details
- Relatively short battery life and slow charger
CONSTRUCTION: The build quality is very good and I usually like his design. The only problem is the displacement of the lens cover to turn the camera off and on - this mechanism is pretty tight, but the lens cover does not have any kind of performance you can understand the move, to push the shield up and down.
Program Start: Start time is quite short - about 1 sec. The timing of the recording of a single image to the memory card can vary from 1 to 2 seconds without flash and about 2 seconds with flash. In burst mode, you take 10 shots for only 1 second, but then you wait about 10 seconds while they are writing to memory. The menu offers an interface to manage groups of shots.
DISPLAY:. TX7 has a large 3.5 "bright high resolution screen with 920k pixels and a wide viewing angle, which is easy to see even in direct sunlight with its vivid colors and clarity, it looks like a small TV with a 16:9 wide screen - the screen.
MENU: Most camera functions are accessible via the touch screen. TX7 has a very intuitive menu that is visually divided into three parts - a narrow left and right vertical stripes and a large central area. At the top of the right bar you can see the indicator of remaining battery charge, available number of shots, current shooting format and resolution. In the lower part there are two buttons: shooting modes and playback. If you press the MODE button a list of available functions is displayed in the central part: Intelligent Auto, Program Auto, iSweep Panorama, Movie, Anti Blur Motion, Handheld Twilight, backlight compensation and HDR scenes.
The left navigation bar has a "Menu" button on the top with four predefined icons below. It is touching to "Menu" button on the central area will display icons for the parameters along with the left bar represents them all available shooting characteristics of the selected recording mode.
The most interesting is that if you press the gear icon at the top, so you can drag your finger to any of the four icons from left bar in the middle of the central screen area and drop it there. And then you can move all the available icon from the central area and in the same way, move it to the empty space on the left bar. By doing this you can customize the quick access menu separately for individual recording modes as you need (make sure to move firmly and move slowly). And in the same way that you can choose them quick access icons for playback, too.
Advanced Features: TX7 has a number of advanced features that can be useful in tricky lighting conditions.
THH: "Twilight Hand-held" mode may help to either improve the low light image quality when using a flash is prohibited or get a picture in so challenging lighting conditions, where else can you get any at all. In this mode the camera automatically sets the lowest possible ISO and shutter speed, taking six shots in about 1 sec and then combine them into one image with much less noise. It can be very useful for shooting landscapes at dusk, in the interior, or pieces of museum. Taking pictures of people with this condition may be better to tell them "freeze!" instead of "cheers!" :-)
AMB: "Anti Motion Blur" is another dim light that also takes a number of successive images and then compose their superposition. Unlike THH mode has a set of high ISO and fast shutter speed to capture the issues that can be slightly moved by pets or children. For example, shutter speed 1 / 30, if for some indoors in THH mode the camera can set the ISO 200 and then the AMB can be set to ISO-3200 and 1 / 200 BTW, in some cases I saw images of THH state was a kind of underexposed and oversaturated with a little red or blue tint, so I had to use some exposure compensation when shooting - about 1.0 to 1.3, and also to do some work to adjust the white balance. In fact, both modes use a noise reduction mechanism based on data averages. The cornerstone of this mechanism is that useful data is constant - no change from a series of shots to another, while the sound is varied. So algorithm when making images superposition amplifier constant aspects and reduces random them.
Treatment assignments in THH-mode is quite simple: the algorithm should recognize shifting of each successive shots caused by unstable hands and then compensate for it while holding pictures superposition. But in the AMB-mode in addition to shaking hands instability camera must also identify the issues that move by themselves (like children or pets). For static fields AMB algorithm can be applied, since the average noise reduction in THH-mode, but moving in the AMB algorithm should try to identify their course and keep them separate to reduce their noise. About AMB algorithm can dynamically adjust them, so it takes a picture of this movement from one of these pictures and just present it without noise reduction (the worst case scenario). This can happen if the subject moves too much, or if its form is changing, for example - a jumping dog. I did some testing and found - the smaller the subject moves, the better AMB algorithm can perform their duties, and so less noise is visible in the final image.
HDR: "Backlight Correction HDR" - a more useful way. It is not just a lens, but it can also be very useful in all cases, when the image is composed of fragments with very different brightness. The camera, the two shots in quick succession, each of which is optimized for the lightest and darkest areas and then combining them both in one shot. This mode is only effective when there is a huge difference in the areas of "luminance. The good news is that even in the previous models (like my old DSC-T100), and even ordinary images, Sony has done a pretty good job of expanding the dynamic range. I did not know until about two years ago I bought an advanced Kodak P & S camera, and found that the same issues with the Kodak camera completely washed a little more lit areas, Sony's T100 was made to handle them quite well! The same applies for TX7 also.
Panorama: Another interesting feature is iSweep Panorama mode. You can shoot either a horizontal or vertical panorama, and there are two modes: standard and wide. A standard horizontal panorama can cover up to 180 degrees (or less), while the wide, you can shoot almost the entire circle. Just remember: you must take your horizontal panorama in 10 sec. A standard vertical panorama covers about 130 degrees and the broad one - about 180 degrees, and you must finish it within about 8 seconds. Be aware that zoom does not work in this mode and recording in the most wide-angle (25mm equivalent focal length). The resulting horizontal panorama is not of good quality - it has only 1080 pixels of vertical resolution. If your item does not fit the picture, or if you want better resolution, you can do this trick: 1) to switch to the vertical up-to-the panoramic, 2) Select the general one, 3) turn your camera 90 degrees counterclockwise and shoot your panorama from left to right within 8 sec. In this case you will have 1920 pixels vertically. Another tip: Before you start with a panoramic view point your camera at an object that is on the average distance, and half press the shutter button to capture the right focus. Then hold the button half pressed rotated to the most left position, press the button all the way down and start shooting. This is important because if you start in your direction, there is no object, which is much closer than most of the objects in the panorama you where you want to catch a wrong focus, and most of the panorama would be blurred.
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