Home :: ASTRONOMICAL TELESCOPES :: Apochromatic Refractors :: Teleskop-Service APO Refractors :: TS-Optics Photoline 90mm f6.6 FPL-53 Triplet Super APO - 2.5" focuser - 3 focus positions

TS-Optics Photoline 90mm f6.6 FPL-53 Triplet Super APO - 2.5" focuser - 3 focus positions

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in In stock (2)
8.00 kg
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including VAT 20.00 % ( £176.50 )

TS Triplet FPL-53 Apo 90/600 telescope - 2.5" photographic focuser
... High quality APO, colour free and with a very good mechanics - for highest demands - no vignetting at the edges
... 3 focus positions behind the focuser - ready for Riccardi Reducer, Bino viewing, classical flattener or observing
... every single unit is being tested on our optical bench before shipping.

TS FPL53 Triplet Super Apo 90mm Öffnung mit teilbarem Tubus
Developed under the control of TS, this Triplet Apo with FPL53 is an optimal telescope for traveling and astro photography.
Even at highest magnifications, the image rests free of colour while at the same time keeping the perfect field correction.
This is one of the best 90mm Apos we know. The fast f/6.7 system is not just very transportable and compact, it also stands for short exposure times for astro photography.

The advantages of the TS Triplet Apo 90/600mm:

-- Triplet APO 90/600mm with air gap
-- O'Hara FPL-53 for perfect colour correction
-- Retractable dew cap - decreases the tubes length to only 450mm
-- very stable CNC rings
-- splitable tube - you have three different focus positions from the focuser
-- High precission made 2.5 "focuser with 1:10 dual speed - with M63 connection thread
-- Huge field of view of up to 4.5° with a suitable 2" eyepiece
-- Fantastic and fast photographic APO with superb field corretion in combination with the TS 2.5" flattener
or the Riccardi reducer
-- no reflections due to the very good coating
-- comes in a rigid case
-- High-quality aluminium tube for fast cooling - better than a carbon tube

The TS 90/600 Triplet Apo lens:

TS 90mm Triplet APO FPL-53 Objektiv - farbrein
The triplet lens delivers an image free of color fringes - it is a true Apo. It also has the best spherical correction possible on level with Russian APO lenses. The air spaced triplet is installed in a temperature compensated cell.

Even high resolving astro images show no disturbing color fringes around stars.

Photographic use: two focal lengths with one telescope!
Der optionale Grossformat Flattener von TS

Above image: depicted with optional TS 2.5" flattener

Aperture 90mm / focal length 600mm / f6.7: The TS 2.5" Flattener provides a fully illuminated and corrected field, even for full frame cameras. The flattener is being screwed directly to the M63x1 inside thread of the focuser. You need 2 tube segments (remove 1 part)

Aperture 90mm / focal length 450mm / f4.9: The reducer, calculated by Massimo Riccardi reduces the focal length and increases the aperture- focal ratio to f/4.9 while at the same time correcting the entire field for APS-C format sensors or KAF8300. Due to the very fast system, You can take photos of faint objects within one night. Even time-consuming LRGB images or narrow band imaging is no problem anymore. You need 1 tube segment (remove 2 parts)

Observing with Bino Viewer without Glass Path Corrector: Incredible rich field observation with both eyes without glass path corrector which increases the magnification - this offers this TS 90mm Apo. You will be able large deep sky objects and because of the very low magnification, you will have much light and a big field. Remove all 3 parts for long bino viewers or if you want to use a 2" diagonal or remove 2 parts, if you use a 1,25" diagonal.

The 2.5" focuser:

TS Refraktor Zahntrieb 2,5
The large 2.5" focuser guarantees a maximum illuminated field. The focuser comes with an M63x1 thread, ready for the 0.73x Riccardi reducer / corrector or the 2.5" TS flattener.
The focuser is superior to most of the Crayford focusers and even with highest payloads You won't get any flexion problems.

The focuser also provides a 360° rotation and also a 1:10 dual speed.

The modular tube sections of the TS 90/600 Triplet APO:

Der Modulare Tubus des TS 90mm Triplet Apo

It offers optimal focus position for all fields of use:

-- Shortest position: Transport, M63 Riccardi Reducer, Bino viewing with 2" diagonal, no glass path corrector needed.
-- Medium position: Suitable for TS 2.5" flattener for full size sensors
-- Longest position: Suitable for TS 2" flattener and standard visual use

Scope of delivery:

-- 90/600mm Triplet APO
-- 2.5" PHOTO focuser with reduction to 1.25" and M63x1
-- solid case
-- 2 CNC manufatured tube rings (dovetail bar optional)
-- Splitable Tube (3 different focus positions)

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