Dam

Thank you for sharing this information i dont think i will ever take one apart as i am not qualified to do so but it is good to know there is dedicated tool for that task. However even if it is only glass damage i will need to find a dedicated near by astronomy place shop to do it for me or the camera place (providing they can do that in safe environment). Thank you.

Yes thank you very much and i shouldn't have known that but sort of trusted thr sellr according to their reviews on ebay and the fact that it was good deal i should have be more suspicious but lesson learned. I am only hoping that it is a glass damage rather then sensor but will try and get more pictures at different angle to see if it shows up. Thank you very much.

Thank you, you are true gent thanks for checking that for us. I just need to confirm somehow that it is not sensor but the filter galss and too scared to take it off in case dust goes in

You are very correct sir and it is an ebay sale so am.hoping am having some kind of cover via paypal but wouldn't hold my breath as seller did state no returns so will dispute it as not fit for purpose . However i wonder if i should attempt to take a ring out and inspect as it seem to be a IR clear filter from what i can tell so hopefully there is no damage to sensor but dont want to expose sensor to dust.

Agree its hard to tell from pircture but having shined the light on it looks like its a mark on the actual glass / filter as it has a coating on. Email sent to seller just now. Will co tact altair see if they sell those as individual piece.

Yes bought it as used unfortunately and am guessing am stuck with it now. Yes looks like it a very nice improvement 😄 overall. Wonder if this filter can be replaced with new one? Any thoughts?

Its Altair Hypercam 183C Pro. I had it recently purcahed (used) tho.

Just a quick update i took my train apart and found this on camera glass😱?? Is this damaged coating or just a dirt? Not sure if this is culprit but looks very bad.

Ahh will do indeed thanks for pointing out.

Indeed it is very intense area and cant really pinpoint where it is in imaging train. I have tried flats calibration but to no much succes it is still very much there not as dark put still prominenet. My cam is hypercam 183c pro and has this glass element filter screwed on top of sensor. Should i take it off and lean it with microfiber cloth or just blow the dust off?

Thank you for your reply. Yes its very bad 😔 i could not see anything on the refractor lens but the normal dust particles however did not check the camera sensor as am scared to touch the glass filter in case i damge coating. There is a flattener in a train which is brand new and got it out of box first time i took this image but will check it regardless. Thank you for advice 🙏 much appreciated.

Hey all, Hope everyone is ok. I need help please, does anyone know what those dark spots in my images are? Is this a dust or damaged coating on my refractor lens? I am getting a dark smudge on all of my pictures. It's in the top left corner of the picture I have here. Is this just dust on the sensor? Or perhaps something worse? Thanks for any help you can provide. p.s apologies in advance if posted in wrong thread wasnt sure where to post. Br, Dam

Thank you.

I assume you are referring to a #8 Yellow Filter ?

Many thanks Ollypenrice , that i didn't know thanks for pointing that out.

Hi Vlaiv, many thanks for the pointers much appreciated, note taken of all of them. Really appreciate time you taken to get this down. This indeed will help me to get on the right leg and start in right direction. One thing am sure it certainly is very expensive learning curve i would say but very rewarding too . I think i have a lot there to start with so hopefully get some clear skies soon as it been constantly cloudy and rainy . Once again, many thanks.

Hi Both, Thank you for the welcome and thank you for the prompt replies and advice. @Dave thanks for the link i have seen that on the FLO website but i wasn't sure if that was the correct for the telescope, thanks for clearing that up @Vlaiv thank you for welcome and many thanks for reply. Yes, it does have 4 lens actually and i also have got semi apo filter which i hope it will cancel some CA 😐 . I have taken a picture of the Moon other day and have noticed some faint blue around the Moon but i wasn't using filter and took image with my mobile phone thur eyepiece only. Could that be the reason maybe why (sorry i am not an expert and just trying to figure things out)? Visually i couldn't notice any CA. Would you guys recommend any other accessories / equipment that i might need to purchase that will be needed in a long run? Mnay thanks...

Hi There Good People, Hope everyone is well and safe. Not sure if this is correct place to post in since am newbie here and it is my first post so i hope it is ok. I have a question or two that i need a help / advice with and i can't figure it out for the life of me which focal reducer/flattener will i need with my setup? I have recently bought Brassier AR152S/760 f/5 telescope with HEQ5Pro mount and few other accessories so i can do visual observing and at some point, do AP. However, was told that having a reducer/flattener in my optical train is a must have for AP and have since been browsing internet for more info on what is the correct focal reducer / flattener but i can't seem to figure out which one would work best with my refractor. I have Altair HyperCam 183c and some people suggested that i don’t need the flattener with my setup some people do and am confused now which one i would need lol. I hope that someone here can shed some help and advice and set things straight for me lol, i would appreciate that very much. Mnay thanks in advance and looking forward to repsonse. Best, Dam