Posts Tagged ‘Photography’

Chinavasion’s Zoom Video Camera Gets in Close

Thursday, January 1st, 2009

Just before the Christmas, Chiinavasion, an electronics wholesaler, sent me a unique little video camera to review. It’s their MPEG4 digital video camcorder with “telescope style 8x optical zoom lens”, and it turned out to be more than I anticipated at first glance.

video camera - with zoom lens
(You can see all the images here)

The box everything came in was nondescript, small, and was packed with everything needed to get started. Included was the camera, the 8x optical zoom lens with a lens cap, a US plug converter, an AC power cable, battery, USB cable, TV out cable, remote control, headphones, software, manual (in Chinese and English) and a carrying case. The camera includes a built in microphone and speaker, a 3 inch TFT LCD screen that folds out to view and can be flipped 180 degrees for self-protraits, a 5 Megapixel CMOS image censor and a 12 Megapixel max resolution (interpolated).

zoom lens

The big marketing draw for this camera is, of course, the 8x optical zoom lens, so I started playing with that right away. I quickly reminded myself how useless that level of zoom is in my house, so I headed to the top of a building. The camera’s built-in lens is threaded, allowing the zoom lens to simply screwed in. Once attached, the lens focus is adjusted to get a clear picture. In the video below, I pointed the camera at a nearby neighborhood, attached the zoom lens, and pointed it back at the neighborhood, revealing a lot more detail than before. I tried to edit the video, but Windows Movie Maker hates me today. You can also take a look at the unaltered video file right here (22MB). This camera also has built-in 4x digital zoom controls on the back. Unlike the attachable zoom lens, which is 8x or nothing, the digital zoom is adjustable, but I generally dislike using digital zoom as it tends to pixelate the image.

The camera does more than just video. When you turn it on, you can switch it from “Video Camera” mode to “Camera” mode for some pretty decent still images. I took a few to show the color and clarity with and without the optical zoom lens attached, but I also wanted to know how this camera measures up against my Sony DSC-P41 point-and-shoot camera and my new Canon Rebel XTi DSLR camera. None of the pictures below will win any awards, but they offer an interesting comparison. The LED flash from the Chinavasion camera puts out a pretty bright, whiter, light, leaving me with a whiter photo.

Sony DSC-P41 Chinavasion Canon DSLR
Image taken from my Sony point-and-shoot camera Image taken from the Chinavasion camera Image taken from a DSLR camera

One thing I found unique with this camera is the included remote control. With it, I can take a group photo and be in it without trying to sync up to a timer. Better still, I can take 4 or five in a row without moving, just to make sure I get it right.

Beyond video and still image capturing, this camera includes four additional functions. You can play back videos and images, record just audio, and play MP3 audio files, essentially making it a full personal media player as well as a video and still camera. The MP3 player doesn’t offer any special features beyond choosing a track and playing it back, but it IS a video camera, so just playing the MP3s seems like it should be enough. The audio recording is simple enough, as well. You enter the “Record” mode and hit the shutter release button to begin recording. Then hit it again to stop. Since the audio files are stored in the same folder as still images and video, you have to head to “JPEG” mode to review what you’ve recorded.

A final mode is “Setup”, which allows a lot more custom settings than many cameras. In the Setup mode, you can change the flicker frequency, beep alerts, time, media selection, language, power settings, TV mode (NTSC/PAL), logo display, brightness and format the storage. Additionally, you can hit the menu button to reveal even more settings for resolution, frame rate, audio and white balance when dealing with video capture. The still image capture menu allows you to modify capture mode (with timer option), date stamp, flash mode, scenery, EV (for a darker or lighter image), quality, resolution, white balance, color (normal/sepia/B&W), and quick preview. In JPEG mode, you can rotate, lock or delete images from the menu, and the menu button changes the playback mode for MP3s.

The camera itself has a good weight to it but it’s still comfortable enough to carry around. Because of the weight, I’d hate to drop it as I’m guessing the plastic casing would crack if dropped from standing eye level. Although the zoom lens comes with one cap, I’d love to have one for each side, or maybe just an extra space in the carrying case for the zoom lens to keep it protected. After two weeks, I still haven’t tried every feature and function, but I’ve seen enough to consider it a pretty good deal for the price (about $110 wholesale from the site).

Experiments With Bokeh Mask Photography and Other Techniques

Wednesday, November 5th, 2008

What is Bokeh photography?
DIYPhotography.net did a great job of describing bokeh as

…an adaptation from a a Japanese word meaning blur. In photography this term is used to describe the quality of the areas in the picture which are not in focus.

How to make a bokeh photo
To describe it is easy. To pull it off might take a little practice. There’s much more detail in the article I linked to above, but here are some basics.

What you need:
1. A camera with a manually adjustable aperture setting (most DSLRs will do)
2. Black construction paper
3. Uniquely shaped hole punch
4. Pencil or pen
5. Scissors
6. Tape

Here’s the heart shape hole punch I found at a craft store. It was about $6, I think, and a manly shade of pink. The website has a few other choices, as well.

DSC06021

What to do:
1. Place your camera lens on the construction paper and trace it with your pen or pencil.
2. Cut out the circle (A), but cut it so that it has three or four little tabs (B) on it.
3. Cut a strip of construction paper (C) that is just longer than the circumference of the circle. If you’re unsure, just cut it long enough that it can wrap all the way around your lens and the ends overlap.
4. Wrap the strip (C) around the outer end of your lens and tape the end of the paper to the piece it’s overlapping.
5. Using your hole punch, punch a hole in the center of the circle of paper (A).
6. Hold the circle (A) to the strip (C) and fold over and tape the tabs (B) to the strip (A). to complete a DIY Bokeh lens hood.
7. Adjust the aperture to its lowest setting.

You should now be ready to make some pretty cool photos. It seems to work best with lots of smaller lights. Bust out that strand of Christmas lights and start shooting.

My semi-successful attempt
Using a borrowed camera (I still haven’t bought a DSLR for myself), I attempted to create my own Bokeh mask with an Exacto knife and ever-waning patience. The outcome, I’m sure, would have been more favorable if I had used the hole punch.

Bokeh Hearts

Other fun things to try
Contre-jour
French for ‘against daylight’, refers to photographs taken when the camera is pointing directly toward the source of light. An alternative term is backlighting.
DSC05163

Digiscoping
A method of obtaining photos using a digital camera through a spotting scope, telescope or, less often, binoculars.
CIMG0633

Try your own techniques and post links to your results in the comments. I’d love to see them.

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