TS-Optics Photon 150 f/5 OTA This PHOTON Newtonian combines a 150 mm (6") aperture with a 750 mm focal length at f/5. Its parabolic primary mirror and fast optical geometry support deep-sky imaging and visual astronomy.
Manufacturer model: TS-Optics Photon 150 f/5 OTA · Specifications checked against manufacturer data on 2026-11-04
This PHOTON Newtonian combines a 150 mm (6") aperture with a 750 mm focal length at f/5. Its parabolic primary mirror and fast optical geometry support deep-sky imaging and visual astronomy.
Optics and illumination
The manufacturer specifies 94% enhanced mirror reflectivity with a protective quartz layer. Secondary-mirror size and illuminated-field figures are specific to this aperture; the table distinguishes fully illuminated field from partial illumination where TS publishes both.
Focusing and tube
The metal tube is fitted with a 2" Crayford focuser with adapter to 1.25" and compression ring. Use the published dimensions and assembled-weight configuration when selecting a mount; cameras and other added equipment contribute further load.
Imaging configuration
A suitable coma corrector is optional for wide-field imaging. Native focuser backfocus is available mechanical travel/spacing, not automatically the sensor-spacing requirement of a chosen corrector. Keep primary and secondary collimation aligned for the installed camera train.
Additional specifications
Field of view
roughly 38 mm illumination (90%) - suitable for full format cameras and large 2" eyepieces
64564
Data sheet
Aperture
150 mm (6")
Backfocus
roughly 78 mm
Focal length
750 mm
Focal ratio
f/5
Focuser
2" Crayford focuser with adapter to 1.25" and compression ring
Manufacturer listed equipment
TS 150 mm f/5 Newtonian with tube rings 6x30 optical finder scope with quick coupling Dust protection cap Reduction from 2" to 1.25"
Manufacturer part number
TPM6F5
Model
TS-Optics Photon 150 f/5 OTA
Primary mirror
Parabolic primary mirror with 94% reflectivity and protective quartz coating
Secondary mirror
63 mm - ideal for APS-C format sensors with suitable coma correctors
Support surface on the bottom of the tube rings
Flat support surface with an M6 thread
Support surface on the top of the tube rings
Flat support surface with a 1/4? internal thread (tripod socket)
Tube diameter
179 mm
Tube length
690 mm
Tube weight
5.9 kg
Specific References
MPN
TPM6F5
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TS-Optics Photon 150 f/5 OTA This PHOTON Newtonian combines a 150 mm (6") aperture with a 750 mm focal length at f/5. Its parabolic primary mirror and fast optical geometry support deep-sky imaging and visual astronomy.
Manufacturer model: TS-Optics Photon 150 f/5 OTA · Specifications checked against manufacturer data on 2026-11-04
