To the photographic enthusiasts for detailed analysis to share the Canon IXUS155 performance and Nikon D7100 performance comparison.
Analytical sharing:
Canon IXUS155 camera is equipped with 10 times optical zoom, in addition to support up to 4 times times the digital zoom function can allow the Canon IXUS155 shooting subject further expansion.
While the Nikon D7100 Central focus (cross type)
Give your photographers a detailed analysis to share the performance comparisons of Canon D30 and Nikon D7100.
Analytical sharing:
Canon D30 is equipped with a 28mm wide-angle lens and has 5 times optical zoom, which makes it possible to shoot high quality clips from a full HD video. Canon D30 supports the highest 1920x1080/30p format video, and also supports 120fps, 240fps slow motion video shooting, and short film summary functions.
Wh
resolution.
Comparison of official MTF curves of Nikon 18-70 and Sigma 17-70HSM lenses
101 about MTF:
I have never insisted that movie friends go to the "lens" MTF Curve, because it is easy to "get angry" and regard it as the "final test standard of the camera", ignoring the comprehensive evaluation of the camera. In fact, the MTF Curve can only be used as a reference for the imaging effect of the lens. It does not reflect distortion, glare, color
20. The head was unable to stand the deformation of 14mm/2.8D, and then finally sold. 14-24/2. 8g is too big and too heavy to carry and finally sold,Let me buy 20mmF2. 8D. I wanted to buy 20mm for the AIS version. I found a brand new one, so I finally bought it at a price of around yen.This 20 sets, has a good color performance, good portability, anti-glare ability can be said to be quite good!
But the biggest problem with this header is that the resolution of the corners under the large apertu
11 Point FocusTime to Market 2008Type SLR Digital cameraFocus mode single Area AF: Focus only on the target in the selection area can be selected from any of the 11 AF point SensorsDynamic Area AF: Focus on the target of the selection area, and automatically transfer the focus area to the target if the target leaves the original position for trackingAutomatic Area AF: Measures all 11 focus areas, automatically determines the area of the master target and activates only those areasGeneral Focus r
The sea crystal, a rare sight, sat by the sea blowing the sea breeze, looking at the distant fog of the dock, it feels very comfortable. The attitude towards North Jiangsu has been very complicated, and those companies have gone deep into it to see
In the spring of March, I walked around in school with my camera and kept searching for my perspective. Knowing that you are not doing well, I always feel that my films have all kinds of defects. Maybe this is the difference
This week, the school organized an internship in Suzhou to visit the factory. As I learned about woodworking, the factories we visited are related to the wood industry, such as wood-based panel farm, furniture factory, and Woodworking Machinery farm.
saturation is to retain as much details as possible to avoid the most likely Red overflow of Nikon cameras. This setting is especially suitable for sugar credits. The skin is white and red. You can adjust the curve later.
3. Adjust raw files in nx2. Adjust the exposure and color temperature as much as possible based on the photo style. If you encounter any special problem, you can consider generating TIF
format, please do not forget to use it, this format file records the most original photos, the most authentic information, do not do processing and compression, for post-production left a broad operability. We used to use Lightroom,nikon NX2, Aperture,iphoto, etc., but the advantage of good photos is that it can not only view raw files, adjust parameters, and, in contrast to lightroom these raw file conver
(The Nikon lens with a AF-S and the HSM snap can focus automatically on the d40)
With the price reduction of digital SLR, many friends want to buy digital SLR, but many people do not know how to choose a camera, in addition, many merchants and professional media intentionally say some words as "professional" to raise the threshold for SLR ", many "heroes and birds" also love to move out some of Nikon's ox heads and Canon's magic mirrors to "educat
[Cpp]HBITMAP CopyScreenToBitmap (LPRECT lpRect){// Screen and memory device description tableHDC hSrcDC, hMemDC;// Bitmap handleHBITMAP hBitmap, hOldBitmap;// Coordinates of the selected regionInt nX, nY, nX2, nY2;// Bitmap width and heightInt nWidth, nHeight;// Screen resolutionInt xScrn, yScrn;// Make sure that the selected area is not empty.If (IsRectEmpty (lpRect ))Return NULL;// Create a device description table for the screenHSrcDC = CreateDC ("
top-level head (score more than 4.5, that is, the average value of MTF is more than 0.86 ). All these lenses are fixed focal points. There are 8 standard lenses (two with Macro, 75 ~ There are 4 models in the 85mm focal length head, 90 ~ There are 6 135mm focal lengths (three with microdistances), with the highest score of 200mm/1.8mm/4.8mm (0.89 points, the average value of MTF is ). According to the manufacturer's division, Leica lens accounted for six models (M series: 50/2, 75/1. 4, 90/2.8;
Today boring turn code, turn out a previously written C # screenshot function ... Take it out and share it with everyone.
This code is written in reference to a section of the screen in C + + code rewrite. It's just a statement of the API.
The declared APIs are also appended. For reference. If there are any questions, please note. (Appledotnet@hotmail.com)
///
Intercepting part of the screen
///
Upper left corner
Lower right corner
is full screen
return value bitmap
public static Bitmap G
After a long struggle, I have been searching for information on the Internet and only found the file stored as BMP, but the customer requested to convert it to JPG. However, no ideal solution was found. Too troublesome.Finally, a solution was found at that moment.
The following is a summary:
1. hbitmap copyscreentobitmap (lprect); // Save the specified area of the screen as an imageHbitmap copyscreentobitmap (lprect) // lprect indicates the selected region {HDC hscrdc, hmemdc; // hbitmap, holdbi
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