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ToupTek G3M678C camera (IMX678C color)

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ToupTek G3M678C - Planetary camera & color guidance (STARVIS 2)

Visit ToupTek G3M678C is a camera planetary andself-steering color sensor-based Sony IMX678 1/1.8″ format (technology STARVIS 2). With 8.3 MP (3840 × 2160)and 2.0 µm pixelsa 12-bit ADC and theUSB 3.0 Type-Cit offers high cadencesa very low read noise and excellent sensitivity, especially in the near-infrared, for the Moon, planets, the Sun (suitable filters) and precise guidance via ST-4.

Highlights

Sensor : Sony IMX678 colorBSI, STARVIS 2, 1/1.8″ (≈ 7.7 × 4.3 mm).
Resolution : 3840 × 2160 (≈ 8.3 MP) - pixels 2.0 µm.
12-bit ADC - Hardware ROI - digital binning 1×1 → 8×8.
High speed in full sensor (up to ≈ 50-60 fps) and > 100 fps in typical ROI.
Zero amp-glow - very low read noise - good EQ (peak > 80 %).
Integrated ST-4 for self-steering - frame buffer for stable transmission.
1.25″ mounting (M28.5×0.6) + adapters C/CS - window AR/IR-cut depending on version.

Technical specifications

Sensor	Sony IMX678 color, BSI, STARVIS 2, 1/1.8″
Active zone	≈ 7.7 × 4.3 mm (diag. ≈ 8.47 mm)
Resolution	3840 × 2160 (≈ 8.3 MP)
Pixel size	2.0 µm
ADC	12-bit (8 / 12-bit output)
Playback noise	very low (order of 0.4 → 0.6 e- depending on gain)
Full-well (FWC)	≈ 11-12 ke-
Max. frame rate (full sensor)	≈ 50-60 fps (USB 3.0)
Shutter	Rolling
Laying time	0.1 ms to 1000 s
Interface	USB 3.0 Type-C
Ports	ST-4 (guiding) - USB 3.0 PC
Tampon	Integrated frame buffer
Assembly	1.25″ nose (M28.5×0.6) - C and CS adapters included
Backfocus (bare body)	≈ 12.5 mm (CS) - ≈ 17.5 mm (C)
Dimensions / Weight	Ø ≈ 37 mm × ≈ 72 mm - ≈ 70 g
OS & SDK	Windows / macOS / Linux - Cross-platform SDK

Performance & uses

Planetary Moon, Jupiter, Saturn at high frame rates (full 4K sensor and very fast ROI).
Solar H-alpha/continuum (suitable filters), excellent SNR.
Self-steering : port ST-4high sensitivity, ideal for OAG.
IR-pass very good near-IR response (685-850 nm filters, CH₄).

Window	Typical data rate (USB 3.0)
Full sensor 3840×2160	≈ 50-60 fps
ROI (e.g. 1920×1080)	> 100 fps

Software & compatibility

Drivers	ASCOM, INDI - DirectShow - Native SDK
Acquisition	SharpCap, FireCapture, ToupSky, MaxIm DL, AstroArt
Guidance	PHD2 via ASCOM or port ST-4

Integration & mechanics

Body 1.25″ compatible with most ocular holders, drawers and OAGs.
C/CS adapters supplied for industrial lenses and compact setups.
Short backfocus ideal for tight OAG.

Box contents

G3M678C camera (1.25″ body)
Nose 1.25″
C and CS adapters
USB-A → USB-C (USB 3.0) cable
Cable ST-4 self-steering

Content may vary by batch/region.

Why choose the G3M678C?

Because it combines sensor STARVIS 2 modern (2.0 µm), high speed, very low noise, USB 3.0, buffer and ST-4 in a very compact 1.25″ format: an excellent color choice for high resolution and guidance.

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