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Hi! I've recently acquired a new Astromodified Canon rebel XT and I've tried to take pictures of nebulas using it but I've noticed that there are these weird black artifacts that keep appearing in my images. Would like to know if anyone has experienced this before? Or are these dirt/dust specs on the camera, filter, and telescope glass? I've attached some of my edited and raw pictures for your reference. The black artifacts can already be seen in the raw image of the horsehead nebula and after stacking I think it got amplified. Anyway, advance thanks and I hope everyone's doing well.
It was a tough decision to let this go, but I hope it will find a good home and get used as it should.
There are many threads on SGL containing the observations I had with this telescope. Here is a collection of my reports with this telescope: astrojournal_by_date.pdf
1. TeleVue-60 f6 with short Vixen dovetail, the TV60 soft case, original bag, TeleVue hat, and booklet signed by Al Nagler. Asking for £600.
2. Manfrotto 190 aluminium tripod, TS AZT6-GR mount head with TSPKM dovetail clamp. Asking for £190. This is sold as a package.
Payment via bank account transfer, PayPal (as friends or buyer pays the fees), or in person. Collection in person is preferred, but I can dispatch the items using parcelforce at buyer's risk. Shipping costs will be arranged.
This may be an artifact, but I took this shot of the Orion Constellation from the Canary Islands and it showed a small nebula around Beteleguse. Do you think this is real? The shot was taken with a dual band filter which brings out the Ha. I initially assumed it was a camera artifact, but I took more shots with different camera positions and it was still there. There are some on-line articles about such a nebula. My first reaction was to edit it out, but I think it might be real and only visible because Beteleguse has dimmed by over 50%. What do you think?
These are my last images of 2019 taken with my ED72 and 183mm pro to be replaced by a 533pro
These targets are not easy due to location trees etc except M1 , there was a bright moon as well so are all lucky shots
but at last i have taken them warts and all . My guiding was all off as well
Anyway a merry Christmas to you all and a Happy new year