How will the SVBONY SV705C's 2.9µm pixels perform on Jupiter with an 8" f/10 SCT?
At 2032mm, the 2.9μm pixels give about 0.29 arcseconds per pixel, which suits average to good seeing. A 2x Barlow takes it to f/20 and about 0.15 arcseconds per pixel for steady nights.
Can I use the SV705C for Electronically-Assisted Astronomy (EAA) on the Orion Nebula (M42)?
Yes, the SV705C is well-suited for EAA on brighter deep-sky objects like the Orion Nebula (M42). It is intended for EAA and nebula imaging, with ≈90% QE, read noise down to 0.7e and no amp glow. As an uncooled camera, thermal noise will build on very long individual exposures, but its strength lies in stacking many short exposures (5-30 seconds) to build up a deep image in near real-time.
What is HCG mode on the SV705C camera?
HCG (High Conversion Gain) mode is a digital noise reduction technology built into the SV705C's sensor. When you increase the camera's gain setting past a certain point, HCG mode automatically activates. It greatly reduces readout noise while keeping a high dynamic range, down to 0.7e.
What do the 6.5mm and 12.5mm back focus options on the SV705C let me do?
There are two back focus values, 6.5mm and 12.5mm, with no note of which setup each applies to. Measure your train with the adapters you use before setting spacing to a reducer or other corrector.
Is the SVBONY SV705C suitable for long-exposure deep-sky astrophotography?
The SV705C can be used for imaging brighter deep-sky objects, particularly for EAA as mentioned above. However, for traditional long-exposure astrophotography of faint galaxies and nebulae, a dedicated cooled camera is generally recommended. The SV705C is uncooled, so thermal noise will accumulate during multi-minute exposures. Its primary strengths are planetary, lunar, solar (with a proper filter), and EAA.
What software do I need to use the Svbony SV705C?
The manual gives setup steps for SharpCap and for PHD2 through the ASCOM platform, with drivers from the SVBONY website. Supported systems are Windows, Linux, Raspberry Pi, macOS and Chrome OS.
Does the SVBONY SV705C have amp glow?
The SV705C has no amp glow at long exposure times or high gain.
How does the 128M onboard buffer on the SV705C help during imaging?
The built-in 128M DDR image buffer acts as a temporary storage for frames before they are transferred to your computer. This helps if your computer's USB port is briefly busy during a fast capture.
Can I use the SVBONY SV705C for solar imaging?
Yes, with a proper solar filter mounted at the front of the telescope; never point it at the Sun without one. The high frame rate helps catch moments of steady seeing on sunspots and granulation.
What is the benefit of the SV705C's enhanced near-infrared sensitivity?
The enhanced NIR sensitivity allows the camera to capture light at wavelengths longer than the human eye can see. This is particularly useful for planetary imaging. For example, an IR-pass filter can reduce the effect of turbulence on planets. Using a methane band filter (which is in the NIR) can show high-altitude features in the atmospheres of Jupiter and Saturn.
Can the SVBONY SV705C be used as a guide camera?
Yes. The SV705C includes a standard ST4 guide port and is compatible with guiding software like PHD2. It is supported by PHD2 and the ASCOM platform.
Do I need an IR Cut filter with the SV705C?
For color planetary imaging, an IR cut filter is common, since infrared light can soften the image and shift the color balance. SVBONY offers the SV705C with its 1.25-inch UV-IR cut filter.
