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Frequently Asked Questions

What is the difference between cameras with 1/4" CCD and 1/3" CCD?

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This is the size of a camera sensor's active area. The smaller the dimension, the more "work" the camera will have to do to present a monitor sized picture. A 1/4" CCD will have to magnify the image more to show the image on the monitor. A 1/3" CCD will need less magnification to show the image on the monitor. A 1/3" CCD will cost more and have a better image. Both types are adequate for reaview systems.

How does the Pixera Camera achieve a one-million-pixel resolution from a 1/3" CCD?

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Pixera camera achieves the one million pixel resolution through its innovative, patented optical image capture mechanism. The Pixera camera captures four frames of the image and overlays them, increasing the resolution of the image to four times the resolution of the CCD chip (250,000 pixels).

What is the difference between 1k x 1k and 2k x 2k CCD cameras?

Gatan, Inc: FAQ Imaging
The 2k x 2k CCD camera has an area more than 6 times that of the 1k x 1k MultiScan camera. The pixel size is 25% larger for the 2k x 2k camera, which results in better image resolution.

Camera) What is the difference between CCD and CMOS?

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The image sensor used by most digital cameras is a charge-coupled device (CCD). Some cameras use complementary metal oxide semiconductor (CMOS) technology instead. Both CCD and CMOS image sensors convert light into electrons. CCD sensors create high-quality, low-noise images. CMOS sensors are generally more susceptible to noise. Because each pixel on a CMOS sensor has several transistors located next to it, the light sensitivity of a CMOS chip is lower.

CCD? CIS? What's the difference?

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CCD is now the standard device used in today's scanners. It stands for Charge Coupled Device and it works like this: The device accepts light, converts it to electrical chargers that are then stored and manipulated into digital images. CIS on the other hand used to be the standard, but it has been mostly replaced by CCD. CIS based scanners are heavier and slower than their CCD brethren.

Do The Imaging Source CCD cameras run on Mac OS?

Astronomy Cameras and Telescope Cameras FAQs
The Imaging Source manufacturers FireWire cameras. We do not offer any individual consulting at system level. The following recommendations are only general in nature. The responsibility for the correct usage of the camera lies in the hands of the on-site engineer. The Imaging Source does not take any responsibility for errors, loss of data or other damages that are the result of these recommendations.

Do I need a power supply for The Imaging Source FireWire CCD cameras?

Astronomy Cameras and Telescope Cameras FAQs
No. All FireWire CCD cameras, manufactured by The Imaging Source get their power via the FireWire interface.

How can The Imaging Source FireWire astro CCD cameras be mounted on telescopes?

Astronomy Cameras and Telescope Cameras FAQs
All The Imaging Source FireWire astro CCD cameras have standard a C-Mount. You can purchase adapters for various telescope mounts at your local telescope accessory store.

Do The Imaging Source color CCD cameras output raw image data?

Astronomy Cameras and Telescope Cameras FAQs
Y800: Camera based color interpolation is turned off and the raw color data stream from the CCD is outputted in the monochrome format Y800. The camera control software IC Capture.AS displays color images in their raw form. Therefore, they appear to be monochrome at first sight. This mode is not suited to visualization applications. However, should you wish to capture an uncompressed AVI file, you should use this mode. BY8: the structure of this format is equivalent to that of the format Y800.

What are the common sizes of CCD imager in CCTV cameras?

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It is 1/3", 1/2" There is also new format coming up and that is 1/4" while 2/3" and 1" are disappearing. Yes, but you can also take bigger lenses for smaller camera imager. Example: 1/3" camera will take 1/2" and 2/3" lenses. 1/2" camera will also take 2/3" size lens.

Why is there mismatch in the montage image acquired from wide-angle MultiScan CCD cameras?

Gatan, Inc: FAQ Imaging
It is common to observe mismatch in montage images acquired from a wide-angle CCD camera. The mismatch comes from the common distortions in a TEM column when large-field-of-view images are acquired. Such distortions increase rapidly as the third power to the radial distance. Typically the distortion is less than 1% at the edge of the film. Since the Gatan wide-angle CCD camera has a field of view much larger than film (6 times more), it is inevitable to observe distortions from the TEM.

What are the main differences between the wide-angle and bottom mount MultiScan CCD cameras?

Gatan, Inc: FAQ Imaging
Field of view and effective magnifications. Wide-angle cameras have a large field of view (about 6 times larger than that of film), but have an effective magnification of 20-30% of that of film. On the other hand, a bottom mount camera has a field of view of only 10%, but effective magnification of about 130-150% of that of film.

Can I do TEM Tuning and DigitalMontage with MultiScan CCD cameras?

Gatan, Inc: FAQ Imaging
Yes, absolutely. However, mismatch may be observed in montage images acquired from wide-angle cameras, i.e. MS600W and MS600CW. No. Gatan does not offer any sort of upgrade. The hardware components have changed so much in the past, it is almost impossible to upgrade them to the current platform. Gatan recommends a trade-in option for the SSC cameras.

What difference between Square Pixels CCD and non-Square Pixels CCD?

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If the application is use for Alignment; Measurement; Analyze; the object, it is better to use Square Pixels because the image size (Height & Width) which you capture is same as the actual object size. If you use non-Square Pixels CCD camera, the Width of the image will be wider than the actual object size.

What is the difference between CCD and CMOS Image Sensors?

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The image sensor for IP Cameras is responsible for transforming light into electrical signals. This process is otherwise known as the capturing of images digitally. The CCD (Charge Coupled Device) image sensor offers superior image performance and flexibility at the expense of system size. CCD image sensors feature better light sensitivity when directly compared to CMOS image sensors. As a result, the higher light sensitivity translates into better images in low light conditions.

What is the difference between a grade A and a grade B CCD?

Gatan, Inc: FAQ Imaging
The difference is the number of column defect allowed in the CCD sensor. For a grade A CCD, there is no column defect in the central 750 x 750 CCD area. For a grade B CCD, the maximum number of column defects should not exceed 10 in the whole image.

What is CCD?

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CCD is used in professional cameras because of its high resolution quality and its ability to record in low-light situations. CCD is basically a small silicon chip that receives light and turns it into voltage variations which makes up an image. Its usually measured in inches with 1/3" CCD being the standard. They are higher priced but are great for cameras that may require vision in near darkness.
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