Manufacturer: -TS Zubehör
Product number: TSWynne68

EUR 917,00


incl. 19 % VAT (DE)  
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rating: 5.0 of 5
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TS-Optics Wynne Newtonian coma corrector for large sensors
For the correction of coma of Newtonian telescopes Massimo Riccardi has designed this outstanding 3-element coma corrector for Teleskop-Service. The corrector provides 66-71 mm backfocus for all customary CCD and DSLR cameras and also off-axis guiders, filter wheels, ... This makes the TS 2.5" Wynne corrector an interesting alternative to the ASA Wynne corrector, which offers less backfocus. On top of that, our corrector provides better illumination, achieved by its short design of only 100 mm.

Simple adaptation to the focuser via the M68x1 thread:
The TS 2.5" Wynne corrector has a M68x1 Zeiss style thread on its top. This thread permits the trouble-free screw-connection to many focusers, for example the Moonlite 2.5" or Starlight Feather Touch. The focusers only requires a camera-sided M68x1 female thread. This specific thread is very common amongst high-quality focusers.

Camera-connection and required backfocus distances:


The TS 2.5" Wynne corrector has a camera-sided M68x1 female thread. This allows for a convenient attachment of exciting accessories, such as our TS-Optics M68 off-axis guider. Most cameras with large sensors offer a M68x1 connection or can at least be adapted to this thread.

The backfocus is calculated from the base of the M68x1 thread:
Focal length 600 mm - Backfocus 66 mm
Focal length 800 mm - Backfocus 68 mm
Focal length 1000 mm - Backfocus 69.5 mm
Focal length 1200 mm - Backfocus 69.75 mm
Focal length 1500 mm - Backfocus 70.5 mm
Focal length 1800 mm - Backfocus 71 mm


Image: TS 2.5" Wynne corrector with TSOAGM68 Off Axis Guider:
Camera-sided connection:M68x1 male thread
Focuser-sided connection:M68x1 male thread
Length of the corrector:100 mm (93 mm w/o male thread)
Outer diameter body:62 mm
Backfocus:66-71 mm from the M68x1 connection thread on the camera side (the thread is not taken into account)
Lenses:Three lenses - Wynne principle - fully multi-coated
Body:CNC-crafted body with anti-reflex coating.
Focus position:The original focus position of Newtons is not affected.
Focal length:The corrector shortens the original focal length by a factor of 0.97x
Suitable for:Newtonian telescopes starting from 8" aperture and an f-ratio of f/3
TS 2.5" Wynne corrector with 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):




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EUR 45,90RRP EUR 49,00you save 6.3% (EUR 3,10)

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Reviews

Written by Dave Curtis
on 2023-07-22

"Excellent performance on my 300mm f4 Newtonian using APS-C ZWO ASI 2600MM camera. Fits nicely into my Moonlite Nitecrawler 2.5"" focuser. Tight stars into the corners and very low vignetting at APS-C also the 70mm back focus is welcome for extra accessories."

Written by Dave Curtis
on 2023-07-19

I am very impressed with coma corrector. My equipment is 300mm f4 GSO truss newtonian, Moonlite 2.5" nightcrawler and a APC-S ZWO ASI2600.

Almost no vignetting and tight round stars into the corners. My 4 element GPU produces nice stars but this is another step up due to the larger diameter and less vignetting.

Written by David Greset
on 2022-09-30

"Impressive optical quality. But be careful, a previous one bought had the lens mounted wrongly."