Astronomy on MSN2mon
How to choose the right focal length for your astrophotosThis figure is commonly given in millimeters (mm). For example, my 8-inch SCT has a focal length of 2,032 mm. Imagine it like ...
SIGMA will develop interchangeable lenses with unprecedented specifications and performance by designs that benefit from the short flange focal length ... With the SIGMA 45mm F2.8 DG DN ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback