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TS-Optics NEWTON Coma Corrector 0.85x Reducer - big Sensors - 3" connection

Name: TS-Optics NEWTON Coma Corrector 0.85x Reducer - big Sensors - 3" connection
Brand: -TS Zubehör
SKU: TSNTRED
Price: 799 EUR

4-element coma corrector and 0.85x focal reducer for Newtonian telescopes with 3" focuser

Full illumination and field correction up to 46 mm diameter (full-frame size)

Suitable for all Newtonian telescopes with 3" focuser

Reduces the focal length to 85% and thus shortens the exposure times to less than 75%

Can be screwed to the focuser via the male M82x1 thread of the corrector

At the camera side, the following threads are available for camera adaption: M76x1 thread (male), M68x1 thread (female) and M54x0.75 thread (female)

Working distance 55 mm from the M54 thread or 61 mm from the M68 thread

The corrector needs a focus position of 190 mm above the tube or 90 mm above the 3" receptacle of the focuser

Manufacturer: -TS Zubehör

Product number: TSNTRED

EUR 799,00

incl. 19 % VAT (DE)

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excl. 6.95 € shipping costs (DE)

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TS-Optics NEWTON Coma Corrector 0.85x Reducer - big Sensors - 3" connection

4-element coma corrector and 0.85x focal reducer for Newtonian telescopes with 3" focuser

Full illumination and field correction up to 46 mm diameter (full-frame size)

Suitable for all Newtonian telescopes with 3" focuser

Reduces the focal length to 85% and thus shortens the exposure times to less than 75%

Can be screwed to the focuser via the male M82x1 thread of the corrector

At the camera side, the following threads are available for camera adaption: M76x1 thread (male), M68x1 thread (female) and M54x0.75 thread (female)

Working distance 55 mm from the M54 thread or 61 mm from the M68 thread

The corrector needs a focus position of 190 mm above the tube or 90 mm above the 3" receptacle of the focuser

Details..
Technical data..
In the box..
FAQ..

TS-Optics 3" Newtonian Coma Corrector and 0.85x Focal Reducer

Teleskop-Service has developed the Newtonian coma corrector and now offers reduction of the focal length and with increasing the speed. The focal ratio of an f/4 Newtonians is improved to f/3.4. At the same time, coma is fully corrected.

The corrector can be used with all Newtonian telescopes with 3" focuser. It can be clamped directly via a 3" receptacle or threaded via the M82x1 thread. We recommend the corrector for all Newtonian telescopes of at least 10" aperture.

The usable field of the TS 0.85x coma corrector:

The corrector illuminates up to 46 mm with 100% with very good correction at the same time. A sufficiently large secondary mirror is required, of course. With this, you can use cameras with sensors up to full-frame size. We recommend to always use a star at the outer third of the field of view for focusing, thus you achieve a very good sharpness over the entire field.

Adaption of the camera to the TS 0.85x coma corrector:

At the camera side, the corrector provides three threads for camera adaption.

M76x1 thread (male): this thread is already in use for the connection adapter for the threaded joint.

M68x1 thread (female): working distance to the optimal sensor position is 61 mm

M54x0.75 thread (female): working distance to the optimal sensor position is 55 mm

Adaption recommendation to M48x0.75 with 55 mm working distance - perfect for DSLR and astro cameras:

The TSM68-M48 adapter is specially designed for this corrector. It builds up 6 mm, so you achieve exactly 55 mm working distance from the M48 thread. In addition, the adapter offers a 2" female thread for the adaptation of 2" filters. The adapter is used instead of the M54 female thread adapter on the corrector.

Connection at telescope side:	3" barrel and M82x1 thread (male)
Connection at camera side:	M68x1 thread (female) and M54x0.75 thread (female)
Working distance:	61 mm from the M68 thread and 55 mm from the M54 thread
Length of corrector:	107 mm without the thread adapters at camera side
Number of elements:	4 elements
Coating:	Antireflective multi-coating

TS 0.85 Newtonian corrector

Metal dust caps

Question:
How do you have to measure the working distance?

Answer from Teleskop-Service:
The working distance is measured from the beginning of the connection thread on the housing of the corrector (see example picture):

Recommended accessories

Adaptors

TSM5475-M48