telephoto lens for astrophotography
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telephoto lens for astrophotography
With the FMA230, Askar has created a powerful triplet APO refractor with unique visual and photographic application possibilities
- In just a few steps, the APO telephoto lens becomes a compact astronomical telescope, a guiding tube or a powerful spotting scope for landscape observation.
- Aperture 50 mm
- Triplet ED lens with two APO elements for a color-pure image
- Photographic focal length 230 mm (with 4-element corrector) - focal ratio f/4.6
- Focal length for observation 275 mm
- The photographic field of view is designed up to full format
- Precise helical focuser on the lens for accurate focusing - with lock
- Weight 1045 grams
- Practical M48 mount with 55 mm working distance (as telephoto lens)
- Suitable for 1.25" and 2" accessories for visual observation
- Vixen / EQ5 style multifunction plate
- Very well suited for mobile astrophotography with photo trackers like the Skywatcher Adventurer
- Also suitable as a powerful guiding telescope
- With a few simple steps the FMA230 becomes a compact spotting scope for observing with 1.25" or 2" accessories
899.00 €
Delivery date : 1-4 days
The ACL200 from Askar is a professional apo with very good correction with all possibilities of a manual telephoto lens for full-frame cameras
- Focal length 200 mm / focal ratio f4 / aperture 50 mm
- Fully-fledged astronomical APO optics with integrated field flattening - illumination and correction up to full frame size
- Image free of chromatic aberrations and reflections
- Fine focus mode (front ring) for exact focus adjustment for astrophotography (0.002 mm accuracy)
- Integrated aperture adjustment from f/4 to f/22 for landscape photography (depth of field)
- Working distance 55 mm from the M48x0.75 thread, so all common cameras can be connected
- Working distance 66.3 mm from the M69x1 female thread for individual adaptations
- Screw-in option for 2" filter
- Focusing range from 3 meters to beyond infinity
- Including dew cap and stray light protection - screwed
- Gen. 2 with universal viewfinder shoe and multi-function adapter plate for photo tripods and EQ5-level quick release.
945.00 €
Delivery date : 1-4 days
