QHY10 Camera

QHY10 Camera – the power of simple processing in GIMP2

As you can work out, I am very new to this astrophotography thing – I am simply recording my journey on this blog!

So.……now I have discovered the power of even very simple processing in software like GIMP2 used below.

Andy

Original image of trees at bottom of my garden – QHY10 single shot colour camera on Sky Watcher Equinox Pro 80mm OTA taken with EZCAP_QT software and debayered (colour shown) using Deep Sky Stacker (below):

In the image below, the image above has had its curves tweaked in GIMP2:

In the next image, the image above has further been sharpened using unsharp mask in GIMP2 (OK – it is over-sharpened but it shows what can be done!):

QHY10 Camera with Teleskop Express Flip mirror-off axis guider 16/6/2019

Teleskop Express (https://www.teleskop-express.de/shop/index.php/language/en) produce a combined flip mirror-off axis guider & I think this is going to be perfect for the QHY10 camera.

I tried the combination tonight – and it works – with an extra extension on the 1.25 inch port (3x15mm in total but one needed on this device at least to act as eyepiece holder), the illuminated finder becomes parfocal with the camera and the pillar can be taken in to turn the device into a flip mirror for finding purposes or out to use as off axis guider.

So far only tried on the house beyond end of my garden – will need more in focus for focusing on the sky but the telescope has 2cm left do I hope this is enough!

Andy

Successfully obtaining colour image with QHY10 camera

Success! Colour image obtained with QHY10 camera. I made an aperture mask for the Sky Watcher Equinox Pro 80mm OTA to reduce light so that EZCAP_QT did not white out when the image was taken and then took the following FITS image:

As before, the image appears in black and white.

However, it turns out the is due to the need to select an appropriate Bayer matrix in astrophotography software – the following screenshot shows the above image appearing in colour when a particular generic Bayer matrix setting has been chosen. The pop box is obtained by clicking on “Raw/FITS DDP Settings” under <Options> in left hand menu options in Deep Sky Stacker (DSS) software:

Focus point on Equinox 80 to focus on trees/swing at bottom of our garden:

Aperture mask on Equinox 80:

Settings on EZCAP_QT software:

First light QHY10 single shot colour camera 15/6/2019 & determining the focus point on Vernier scale on Equinox Pro 80mm for QHY10

Pointed at window on distant house (curtains closed so no peeping but does have light behind it to give some contrast & help me to find focus point on Sky Watcher Equinox Pro 80mm telescope!).

I was surprised how long the exposures needed to be to get bright image – although less bright images could be manipulated in GIMP2 but using curves to bring out detail.

The size of the senor is large – three fourths (slightly larger than APS) giving enormous image compared to tiny sensors I have used in past, but clearly less sensitive than for example my QHY6 camera.

What I don’t understand tonight is that the images appear to be monochrome on a single shot colour camera – I can’t see setting in the software to make the images colour……I think I can sort this tomorrow by taking image during day when clearly colour around. Perhaps I am saving the images in wrong format or exposure not long enough to obtain colour data?

Tonight the focus point for the QHY10 camera on the Sky Watcher Equinox Pro 80mm with the nosepiece & Altair self centring 35mm extension tube that came with the camera & my own additional 50mm extension tube was 44mm on the Vernier scale on the Equinox’s focus tube – note this is likely to be slightly longer than will be needed for sky as the window below is closer than the sky which drives the focus point further out from the telescope.

Andy

Oringal image = 3896 x 2612 pixels, 10 second exposure using Nebulosity 4 software & selecting Nebulosity’s own in-built driver for QHY10 camera (below):

Above image cropped = this image looks like it has colour data but I think this might be artificial from my playing around with GIMP…..

The following image was taken using EZCAP_QT (recommended by QHY for this camera) – just under 4 seconds exposure with increased gain:

Image 2 – 60secs on Nebulosity 4 – as far as I can tell this is saved as B&W image: