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By Anthony RS
I'm selling these 2 filters since I'm getting a mono astro cam. The filters are barely used and in perfect condition, no scratches, no fingerprints, not even dust. They are both amazing filters, probably the best investment I've made. I've attached some images
taken with these filters, using a 100$ celestron newtonian, a 250$ Canon 500D and the infamous AVX. Also attached are images of the filters showing their perfect condition.
Astronomik CLS-CCD Canon Clip in Filter: https://www.astronomik.com/en/filter-gegen-lichtverschmtzung-filters-against-lightpollution-lpr/cls-ccd-filter/clip-filter-eos-mit-astronomik-cls-ccd.html
Original price including VAT is 155 Euros (around USD 182). I got it for around USD230 including VAT, shipping and custom taxes.
Selling for USD 120.
Astronomik Ha 12nm Canon Clip in Filter: https://www.astronomik.com/en/clip-filter/clip-filter-canon-aps-c/clip-filter-eos-mit-astronomik-h-alpha-ccd-12nm.html
Original price including VAT 194 Euros (around USD 228). Got it for around USD 270 including VAT, shipping and custom taxes.
Selling for USD 180
I am willing to ship them on my own expense using LibanPost (from Lebanon). Shipping might take time; if you would like to use some other shipment method please contact me to discuss the price.
Feel free to buy one or both together.
Let me know if you have any questions.
You can also contact me on <private email address removed>
Unfortunately, I will be moving from my Bortle class 3/4 skies overlooking the Cotswolds, to somewhere with class 6 skies 😫
Does anybody with any local knowledge around the Stotfold area have any observation site suggestions? Away from any local light pollution at least. It would seem driving east maybe productive according to https://www.lightpollutionmap.info
Hi, I'm a beginner and I want to buy something for my telescope. I have a Bresser 6 inch Newtonian(750mm focal length) I have 2 lenses, 9mm, 25mm, a moon filter and a 2x barlow. What would be the next thing to get? I was thinking maybe a solar filter, a light pollution filter since i am stuck at home, idk. What are your thoughts on this?
I'm not experienced with LRGB imaging, so thought i'd give it a go on M81. However, when i combine the 4 individually processed integrations i end up with horrible colour hues across the image - they're all aligned and wotnot. Am i running into the issues of light pollution (inside the M25), which i can only remove with aggressive DBE application? Individual files attached.
Just finished work on a sky quality meter with built in wifi. The device is based on the ambient light sensor TSL2591 and the wifi board ESP32. Communication between the two boards is through I2C. The device has a 40 degrees lens.
The light sensor is programmable, which means you can set integration time (from 100 to 600 ms) and gain (from 1 to almost 5000, in 4 steps). I implemented automatic adjustment of these parameters to allow for the highest dynamic range (600M:1 accoring to the spec sheet).
The device shows Sky readings as a web page. It is connected to a local wifi network, although it could also create its own access point. So far I haven't been able to calibrate the sqm yet, partly due to eternal cloud cover. But it should only require one parameter to be adjusted.
The code is available on GitHub. Sky-Quality-Meter
Here are som pictures.
The parts connected:
The finished device:
This is how output is presented: