In response to multiple requests from our customers, APM designed together with Dipl. Phys. Philipp Keller, a telecentric 2 "Barlow lens with an extension factor of 1.5x. All modern knowledge of optics calculatoon as well as the wealth of experience of optics designer Philipp Keller went into this design.
This design was also calculated with a large back focus in order to be able to use this Barlow as a coma-correcting glass path corrector on Newtons etc. This means that there is enough space in the light path for additional devices, such as filter wheels or OAGs. The fully illuminated field of view is 30mm. With the help of these optics you can optimize your fast photographic system for smaller objects.
In correspondence with eyepieces, the telecentric optics always offer the optimal distance. The use with binocular viewers is of course possible.
Characteristics:
- Modern 4-lens design
- Visually and photographically usable
- Enlargement factor 1.5x
- Fully illuminated field of 30mm
- Usable with binocular viewers
- Coma correcting system
- Excellent image quality
- High-quality MC coatings
- M54x0,75 and T2 threads
Delivery:
- APM coma-correcting barlow lens 2" 1.5x
- 2" eyepiece adapter
- Protective covers
- Packaging
Products specifications
Coating
|
Fully multicoated |
Filterthread
|
2" |
Fully corrected field
|
44 mm |
Backfocus
|
105 mm (from centre last lense) |
Optical design
|
2 achromatic lenses |
Fully illuminated field
|
30 mm |
Magnification
|
1.5 |
Connectingthread
|
M54 external thread and M48 internal thread |