Rich-field (or wide-field) reflectors are a type of Newtonian reflector with short focal ratios and low magnification. The focal ratio, or f/number, is the focal length divided by the aperture, and relates to the brightness of the image. They offer wider fields of view than longer focal...
Rich-field (or wide-field) reflectors are a type of Newtonian reflector with short focal ratios and low magnification. The focal ratio, or f/number, is the focal length divided by the aperture, and relates to the brightness of the image. They offer wider fields of view than longer focal...
If you are trying to figure out the exact magnification you can expect with your camera and telescope, remember to include the 1.6X crop factor that comes into play when using an APS-C-sized sensor.Full-frame DSLR cameraswill utilize the full focal length of your telescope. When you are r...
Make sure to offer reasonable accommodations to people with disabilities. This can include providing wheelchair-accessible rooms for interviews and making sure your advertisements and emails are compatible with screen-magnification readers for the visually impaired. Try out potential employees as contractors...
The clarity of a diamond refers to the amount/type of inclusions present in it. A diamond with lesser flaws inspected under 10X magnification receives a higher grade. Learn More… Color The color of a diamond is rated on a scale of D – Z, with D being totally colorless and Z being a...
That is indeed what he means; he says so explicitly. But even so, the 24.25 figure seems too dark. All I can say is ... whatever. Roger Clark's book was immensely important historically, encouraging deep-sky observers to use much higher magnifications than most had previously. And ...
A model of the zigzag carbon nanobelt (with a magnification of 50 million) produced by a 3D printer at the Equipment Development Center, Institute for Molecular Science. Image Credit: NINS/IMS. Recently, this issue has been resolved for two of the three different kinds of nanotubes. However...
The clarity of a diamond refers to the amount/type of inclusions present in it. A diamond with lesser flaws inspected under 10X magnification receives a higher grade. Learn More… Color The color of a diamond is rated on a scale of D – Z, with D being totally colorless and Z being a...
Set the oscilloscope to display channel 1. Set the vertical volts/division scale and position controls to mid–range positions. Turn off the variable volts/division. Turn off all magnification settings. Set the channel 1 input coupling to DC. ...
Some skywatchers prefer strong magnification to resolve the thousands of light-points within dense star clusters, and to pick out fine structure within galaxies. Others opt for a wide-field, immersive "space-walking" experience, preferring low-mass portability to power. [Full disclosure: I play...