ZEUS 455C PRO (IMX455) USB3.0 Color Cooled Camera

Product Overview

The Player One Astronomy ZEUS 455C Pro is a cooled full-frame one-shot-color USB3.0 camera built on the 61-megapixel Sony IMX455 CMOS sensor. The IMX455 is a 35 mm full-frame sensor (43.3 mm diagonal, 36 mm × 24 mm, 9576 × 6388 pixels) with 3.76 µm pixels, a 71.6 ke- full well, and a true 16-bit ADC. A two-stage TEC cools it 35°C ± 2°C below ambient, and an integrated adjustable anti-dew heater keeps the optical window clear. This is a large-format camera for wide, high-resolution deep-sky imaging.

Who It's For

This is a good match if you image wide deep-sky fields at high resolution and want the reach of a full-frame sensor in one-shot color. The 61 MP resolution and 43.3 mm diagonal capture expansive nebulae, large galaxies, and mosaic-scale fields, paired with an imaging refractor or astrograph that covers the full-frame circle.

Key Features & Design

• Sony IMX455 full-frame color sensor: 61 MP at 9576 × 6388 across a 43.3 mm diagonal.
• 16-bit ADC, 71.6 ke- full well: wide dynamic range and smooth tonal depth for demanding data.
• Read noise down to 1.27e-: a low floor for faint signal on long exposures.
• Two-stage TEC, 35°C ± 2°C below ambient: controls dark current across the large sensor.
• Integrated anti-dew heater: adjustable power keeps the window clear in humid conditions.
• M54 and 2″ interfaces: larger thread to illuminate the full-frame circle without vignetting.

Optical / Mechanical Design

The IMX455 is a back-illuminated full-frame sensor whose 3.76 µm pixels give 61 MP resolution across a 36 mm × 24 mm area. The 16-bit ADC finely samples the 71.6 ke- full well for wide dynamic range, and peak QE is about 80% for a color device. Cooling to 35°C ± 2°C below ambient plus the adjustable anti-dew heater keep noise and condensation in check, and a D55 × 2 mm AR Plus multi-layer coated window covers the large sensor.

Recommended Uses

• Wide-field full-frame color: large nebulae, galaxies, and expansive star fields.
• High-resolution single-frame imaging: 61 MP detail that reduces the need for mosaics.
• Cooled long-exposure deep-sky: faint targets with low thermal noise.

Compatibility & Accessory Notes

The ZEUS 455C Pro connects over USB3.0/USB2.0 (Type-C) and powers its cooler from a 12 V DC input. It uses M54 × 0.75 and 2″ interfaces — the M54 thread is the one to use so the imaging train fully illuminates the full-frame sensor. Back focal distance is 17.5 mm with the sensor tilt plate fitted, or 12.5 mm without. Confirm your flattener/field corrector covers a full-frame circle before ordering.

Good to Know Before You Order

• Full-frame needs full-frame optics: use an imaging train and flattener rated for a 43.3 mm image circle to avoid vignetting and corner aberration.
• Use the M54 thread: smaller threads can vignette the large sensor.
• It is a dedicated imaging camera: it works through a computer and has no application in a visual eyepiece train.
• Spacing help: back focus is 17.5 mm with the tilt plate (12.5 mm without) — send us your optics and we will confirm the corrector and spacing with you.

Frequently Asked Questions

Is it difficult to set up?

No, though it rewards planning. It threads onto M54 or 2″, connects with a single USB3.0 Type-C cable, and takes 12 V DC for cooling. The main step is matching a full-frame-capable corrector and the 17.5 mm (or 12.5 mm) back focus; the camera is controlled in software.

What is it best used for?

Wide-field, high-resolution full-frame one-shot-color deep-sky imaging — large nebulae and galaxies with minimal need for mosaics.

What does the anti-dew heater do?

It gently warms the optical window at adjustable power to prevent condensation on humid nights.

Do my optics need to cover full-frame?

Yes — to use the whole sensor cleanly, the telescope and flattener should illuminate a 43.3 mm image circle.

Bottom Line

In short: a cooled full-frame one-shot-color camera on the 61 MP Sony IMX455, with 3.76 µm pixels, a 71.6 ke- full well, 16-bit output, an anti-dew heater, and 35°C of cooling below ambient. Pair it with full-frame optics through the M54 thread and it delivers wide, high-resolution deep-sky images, set 17.5 mm (or 12.5 mm) behind its front face.