G3M678M

IMX678 High-Speed USB 3.0 Mono Planetary Camera

Regular price $299.00
Shipping calculated at checkout.

Powered by Sony's STARVIS 2 IMX678M monochrome sensor (2.0µm pixels), G3M678M is purpose-built for ultra-sharp planetary, lunar, and solar imaging. USB 3.0 and a 512MB DDR3 buffer deliver up to 1500+ FPS in ROI mode, while doubling as an ultra-sensitive guide camera for OAGs and guide scopes.

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Compatibility / Requirements

The Standard Version uses a C-mount for standard accessories and telescopes. The Extended Version uses a CS-mount with a shorter flange focal distance for broader OAG compatibility. Both versions accept 1.25-inch filters when connected through a 1.25-inch extender.

Delivery and Shipping

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Warranty and Support

For setup support, software downloads and warranty service, contact ToupTek Astro support with your order information.

Reviews (12)

  • 5 stars: 11 (92%)
  • 4 stars: 0 (0%)
  • 3 stars: 1 (8%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
D
Dirk Schwarze
Great for H-Alpha full disc imaging of the sun

Using it for H-Alpha photografie with a Acuter Phoenix Elite Telescope, the Sun fits perfectly on the sensor. Picture quality is very good

G
G
Good value for the money

Good value for the money. Very versatile camera for finder scope, guide scope and as the main camera for planetary imaging.

y
youngho kim
This is a truly excellent monochrome planetary camera

This is a truly excellent monochrome planetary camera. Its performance is outstanding, and I was especially pleased with the option to order it in my choice of color. It's even better that you can purchase an LP filter and lenses together for Milky Way photography! Highly recommended!

H
Harald Becher
G3M678M is a great little camera

G3M678M is a great little camera. I use it with my solarscope Acuter Phönix which matches perfect for the full disc while revealing great detail.
Have a look here: https://www.instagram.com/p/DYG-GOyDVHS/?igsh=NXJvZWlzbzZvcW1t

M
Martins Eihvalds
G3M678M perfect for Solar imaging

Very top of the line camera for hydrogen alpha solar imaging. That was the right choice. I recomend this camera for all solar imagers.

S
Spas Slavchev
Wonderful camera

Here are some photos taken with my Celestron SCT C8

E
Edgar Prellwitz
Excellent camera

Very quick shipment. Excellent camera.
I use it with the ML Astro SHG700, good match.
No problems as guiding scope as well (PHD2).

D
Dragos Matachescu
Awesome camera

Awesome camera. Using it for solar, better than my old 178M.

F
Frank R.
Superb Guidng Camera

This Camera is basically as sensitive as the 662M, but with a marge larger field of view and resolution which is important for multistar guiding. Originally I though maybe I need to go for binning...nope. I seldomly had such a clear, wide sky in phd2. My new favourite, I guess I will buy some more.

C
Carlos Uriarte Castilllo
The perfect camera for planetary use and more aplications

This is my best camera for combine with my planetary setup. C11 and a lot of filters for planetary capture. Especially for Saturn, Jupiter and others...in few days you can visit my youtube channel for a review. (astroterrat youtube channel)

A
Arto Könönen
Excellent product

Superb products

M
Manuel
Aún no he recibido mi pedido

No puedo opinar porque no he recibido mi pedido. Si algún día lo recibo actualizaré esta nota con mi experiencia.
Siento no poder dar una opinión más útil.

Full Specifications

  • Sensor: Sony IMX678 Mono (1/1.8")
  • Resolution: 3840×2160 (8.3MP)
  • Pixel Size: 2.0 μm
  • Image Area: 7.68 × 4.32 mm
  • FPS (USB 3.0): 24 FPS @ 3840×2160 (12bit)
    47 FPS @ 3840×2160 (8bit)
  • FPS (USB 2.0): 1.9 FPS @ 3840×2160 (12bit)
    3.8 FPS @ 3840×2160 (8bit)
  • Max SNR: 41 dB
  • Dynamic Range: 74 dB
  • Read Noise: 2.55 – 0.5 e-
  • QE: >83%
  • Full Well: 11.6 ke-
  • ADC: 12 bit
  • USB: USB 3.0 / USB 2.0
  • Camera Weight: 0.07 kg
  • Back Focus Distance: 17.5 mm (standard) / 12.5 mm (extended)
  • TEC Cooling: Passive heat dissipation

Meet G3M678M

Unmatched Sensitivity & High-Speed Performance

Powered by Sony’s advanced IMX678 monochrome sensor, the G3M678M features exceptional Quantum Efficiency (QE) and extended Near-Infrared (NIR) sensitivity. Unrestricted by a Bayer color filter array, this monochrome camera captures 100% of incoming photons across all visible and NIR wavelengths, dramatically boosting image contrast and detail.

G3M678M monochrome planetary camera

Flexible ROI Mode & Ultra-High Frame Rate Imaging

G3M678M 8-bit ROI capture at more than 1500 frames per second

Equipped with a high-speed USB 3.0 interface, upgraded driver architecture, and full 12-bit ADC output, the G3M678M achieves extreme frame rates up to 1500+ FPS in custom ROI modes-delivering maximum dynamic range, smooth tonal transitions, and ultra-fast capture performance to freeze atmospheric turbulence and lock onto fine planetary, lunar, and solar details through lucky imaging.

*Note: At ultra-high frame rates (≥1500fps), dropped frame probability may vary depending on the user's video capture hardware. When using performance-limited capture devices, 740fps in 12-bit mode is recommended.

G3M678M Planetary Camera Performance Analysis

The Sony IMX678 monochrome sensor extends sensitivity into the near-infrared band and records without Bayer filter losses.

Mono VS Color

Which Do You Need For Planetary Imaging?

Unlocking Planetary Details

NIR Imaging & Atmospheric Penetration

Saturn by TritonYung

Paired with an 850nm IR-Pass or 890nm Methane (CH4) filter, the G3M678M isolates deep atmospheric structures on Jupiter and Saturn, revealing subtle cloud dynamics invisible in standard light.

Why Choose G3M Series Planetary Camera

512MB DDR3 High-Speed Buffer & Sony STARVIS 2 Technology

Built on Sony’s next-generation STARVIS 2 back-illuminated technology, the sensor features reduced dark current, lower readout noise, and higher dynamic range. Coupled with an onboard 512MB DDR3 high-speed RAM buffer, the G3M series guarantees smooth, frame-drop-free data transfer while preventing sensor heating and buffer-induced artifacts during long recording sequences.

512MB DDR3 high-speed buffer used by the G3M series
G3M678M amp-glow and zero amp-glow comparison

Zero Amp-Glow

The G3M series features advanced circuit architecture that completely eliminates amp-glow at the hardware level. Whether shooting high-frame-rate planetary videos at high gain or longer exposures for autoguiding, your raw frames remain clean, pristine, and artifact-free.

G3M series cameras used for planetary imaging and guiding

2-in-1 Versatility: Planetary & Guiding

Why buy two cameras when one can do it all? G3M series serves as high-end planetary cameras while doubling as ultra-sensitive auto-guiding cameras for deep-sky astrophotography setups.

G3M678M connected to an astrophotography imaging train

Compatible with OAG and Guide Scope

Featuring a standard 1.25" form factor, the G3M series planetary camera seamlessly fits into standard 1.25" focusers, guide scopes, and Off-Axis Guiders (OAGs) from ToupTek Astro and third-party brands, making it an effortless upgrade for any astrophotography imaging train.

Standard & Extended Versions

G3M standard and extended camera versions

The Standard Version uses a C-mount for standard accessories and telescopes. The Extended Version uses a CS-mount with a longer front barrel and shorter flange focal distance for broader OAG compatibility. Both versions accept 1.25-inch filters when connected through a 1.25-inch extender.

What's in the Box

G3M678M camera and included accessories

Frequently Asked Questions

What is the difference between the G3M series and GPM series cameras?

G3M is ToupTek Astro's planetary camera series, designed primarily for high-frame-rate planetary, lunar, and solar imaging. GPM is the guide camera series, designed primarily for autoguiding. Both series can also support selected near-infrared imaging workflows, so choose G3M when high frame rate is the priority and GPM when guiding is the primary task.

What accessories are needed for infrared Milky Way imaging with G3M/GPM cameras?

For infrared Milky Way imaging, prepare an IR-sensitive G3M or GPM camera, a compatible lens, an infrared-pass filter, a stable tripod or support, a laptop, smartphone, or compatible controller for image acquisition, and the required USB data cable. For a G3M camera, remove the front C-mount or CS-mount ring, then install the LP825 filter CS-adapter ring together with the lens.

What is the difference between the Standard Version and Extended Version?

The Standard Version uses a C-mount for standard accessories and telescopes. The Extended Version uses a CS-mount with a longer front barrel and shorter flange focal distance for broader OAG compatibility. Both versions accept 1.25-inch filters when connected through a 1.25-inch extender.