Περιγραφή
TS Optics apochromatic Barlow Lens 5x – 1.25 inch
For high magnifications, like for observing moon and planets, you need to use short focal length eyepieces. These are often either very expensive or have a very narrow eye relief, making them rather uncomfortable to use.
For astro-imaging with large magnifications you can do eyepiece projection, but this offers only a limited sharpness throughout the photographic field.
The TS Optics APO Barlow lens is the ideal alternative for both applications.
Fields of use
The large magnification factor 5x turns for example a 25 mm Plossl eyepiece into a 5 mm eyepiece, while retaining the comfortable eye relief of the longer eyepiece. This is very comfortable for observing planets.
For high magnification astro-imaging, like for webcam imaging of the planets, you could use eyepiece projection photography. The better alternative is the 5x Barlow lens because it offers a better field sharpness than typical eyepiece projections. Experience shows that for planetary imaging an effective focal ratio of f/25-f/30 is ideal. As a result this Barlow is the perfect match for most Newtonian telescopes.
The Lens Element
The three-element Barlow lens is fully multi-coated for a bright and high contrast image.
Delivery contents
- 5x Apo Barlow Lens, 1.25″
- plastic dustcaps on both sides
