TS CF-APO 90/600 mm FPL55 triplet apochromatic
The fast, colorless 90mm Apo is equally suited to visual observing and astrophotography. Thanks to the FPL55 APO element (comparable to FPL53), the image is first class and in practice can no longer be distinguished from the world famous Russian LZOS lenses.
The compact Apo is only slightly larger than the Apos with an 80mm aperture, but offers significantly better performance in the sky. This refractor is an ideal travel telescope thanks to the retractable dew cap and a transport length of a good 400mm.
The 90mm Apos lens:
The triple lens with 90mm aperture and 540mm focal length meets the criteria for a full apophoto. Even when enlarged by a factor of 300, the image is free from annoying color errors. Even bright stars show up in astrophotos without disturbing blue fringes.
The APO element consists of FPL55. Another special glass supports color correction. The air-gapped triple lens is fully adjustable. Each glass-air optical surface is multi-coated. The lens has an adjustable mount with temperature compensation.
The 2.5" rack and pinion photographic focuser:
The 2.5" CNC focuser is optimized for photography and can handle a load of up to 6kg. The focuser tube is adjusted via a pinion gear. We also offer motorized focus for the focuser. An internal M63x1 thread is available for adaptations. The excerpt also offers 360° rotation to choose the correct image section.
Astrophotography with the apo
A corrector is required to achieve an optimal image in the field. The corrector is screwed directly into the M63 thread of the apos. We recommend two correctors, both of which are suitable for cameras up to full frame.
♦ TSCFRED90 - Corrector 0.8x
The corrector is calculated extra for this apo. It reduces the focal length to 432mm and improves the aperture ratio to f/4.8.
♦ TSFLAT25del - Checker 1.0x
The concealer provides maximum illumination. Does not change the focal length and aperture ratio.
||Multicoated APO triplet lens - FPL55
||CNC metal tube
|Weight tube alone:
|Weight with tube rings, dovetail bar and handle:
||retractable - can be fixed with one screw
||2.5" CNC focuser, 95 mm travel
|Connections on the eyepiece side:
||2", 1.25" and M63x1 female thread
||148 mm from the 2" connection when the focuser tube is retracted
|Tube length (dew cap retracted):
|Dew cap diameter: