The f-number or focal ratio is just the focal length of the spotting scope divided by the aperture (diameter of the lens). It’s almost universally given as a quantity like...
The f-number or focal ratio is just the focal length of the spotting scope divided by the aperture (diameter of the lens). It’s almost universally given as a quantity like...
Your Oceana binoculars have a built-in etched reticle in the optical system to allow you to measure angles in the field of view. Once you measure an angle, you can...
Your Oceana binoculars have a built-in etched reticle in the optical system to allow you to measure angles in the field of view. Once you measure an angle, you can...
On the Oceana Monocular (#71212), the vertical and horizontal scales on the reticle are graduated in mils (short for milliradians). One mil is a thousandth of the angular measure known...
On the Oceana Monocular (#71212), the vertical and horizontal scales on the reticle are graduated in mils (short for milliradians). One mil is a thousandth of the angular measure known...
Granite ED and TrailSeeker binoculars include a binocular harness strap similar to a photographer’s Cuban hitch. This harness strap serves a dual purpose. Compared to the conventional neck strap (a...
Granite ED and TrailSeeker binoculars include a binocular harness strap similar to a photographer’s Cuban hitch. This harness strap serves a dual purpose. Compared to the conventional neck strap (a...
If you’re looking for instructions for taking images with your smartphone, click here.To use your point-and-shoot digital camera with a telescope or spotting scope, you will need the Celestron Univ...
If you’re looking for instructions for taking images with your smartphone, click here.To use your point-and-shoot digital camera with a telescope or spotting scope, you will need the Celestron Univ...
The approximate photographic magnification can be determined as follows. Take the focal length of the main optical system in millimeters and divide by 50. For example, a spotting scope used...
The approximate photographic magnification can be determined as follows. Take the focal length of the main optical system in millimeters and divide by 50. For example, a spotting scope used...
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