In short:
- Focal length 135 mm / focal ratio F / 4.5
- ED triplet lens with 30mm aperture
- 3-element corrector for field flattener
- 55mm Working Distance of T2 Threaded Mount
- Photographic field of view is designed for APS-C format
- Precise helical operation on the lens for precise focusing - with lock
- Can be easily attached to a telescope on a finder stand
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Askair FMA135 - one lens, four different uses!
Askar's FMA135 is a triplet APO refractor with a single ED glass for perfect correction.
High quality optics produce an image with pure and contrasting colors and meet the highest needs in astrophotography and observation.
With the special APS-C F4.5 corrector, the Askair FMA135 with 30mm aperture and 135mm (F/4.5) focal length becomes a professional APO telephoto lens with 135mm focal length both for the landscape and for Astrophotography.
Internal blackening and multi-coating processor ensure high contrast and brilliant glare-free images, even in difficult lighting conditions.
It is also possible to use 1.25 nebula filters thanks to the thread in front of the lens.
FMA 135 as a photo lens
The manual APO telephoto lens is designed for APS-C formats. From the T2 thread there is a working distance of 55 mm.
Ideal for APN or Mirrorless type cameras but, of course, also for dedicated Astro cameras.
The telephoto lens is so compact that it can also be used handheld. The high speed of an F/4.5 enables short exposure times, even in difficult lighting conditions.
FMA 135 as an astrograph
Astrophotographers will be delighted with this lens. The stars to the edge of the image will be thin. With a working distance of 55 mm, it is possible to connect all common parts (DSLR, CMOS, CCD or mirrorless).
The multi-functional mount allows for easy adaptation to a telescope or tripod mount that can be connected via the 1/4" female thread.
FMA 135 APO mini telescope
The objective provides sufficient working distance for 1.25" diagonal and standard 1.25" eyepieces. You can make wonderful observations with a scope or simply connect a guiding camera and have perfect stars during your guiding.
