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I recently spent my Xmas money on an L-Enhance filter as I have seen amazing results with this filter.
I took it for a test run on the Y Cas Nebula last night (not the best night, but when is?)
I managed to get around 43 mins of time.
I normally shoot 1 min exposures with my 1000D modified camera but I thought I'd go for 90 seconds as the filter would reduce brightness? (any thoughts on exposure times here would be great)
The results were not as great as I was hoping for - see below.
O over stretched it just to see if I had captured the 'ghost'. He's there, but it turns out really grainy and not the nice subtle wispy nebula that I see from other folks.
So my questions are:
- is this a tricky nebula target?
- What exposure times should I run?
- Is 43 mins way too little for this (or any) target?
- any other advice???
Canon 1000D - modified
Skywatcher 72ED Telescope
Skywatcher AzGTI mount (AZ mode at the moment until I can get polar alignment working with SharpCap)
Any thoughts, hints, tips greatly appreciated!
Thanks in advance!
Hi! So Ive found some pictures from an arxiv report in a database which I need for my project and converted them to fits files (The picture on the left). The one that was used in the arxiv report (picture on right) is a zoomed in picture of a galaxy in that picture, where its clearly visible. However when I try zooming in on the exakt coordinates of the galaxy in the fits image, its just plain black. I want the picture "raw", that's why I saved it as fits and not their pdf picture from report. Someone suggested first stretching the image for a more detailed image but some filters had to be used though... the only thing I can find on the tables of the images is that filter F160W was used. I have no idea how to move forward now, completely stuck. Would appreciate some help!
By Anonymous Astronomer
I'm looking to buy some NB filters and wanna make the best decision.
1. Does the size of the filter impacts the quality of the image? (is it a big impact?)
2. I know that lower HBW is best, but... for example: does the difference between 35nm and 7nm is worth the price?
3.Can you recommend some H-alpha, OIII, SII?
Thank you in advance!
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 100.
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 150
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>