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Everything posted by Aenima

  1. Aenima

    jupiter redspot X3

    From the album: 2013/2014 planetary

    from another session with the ASI120MC and a 3x barlow.
  2. Aenima

    Jupiter & moons

    From the album: 2013/2014 planetary

    First light with the ZWO ASI120MC planetary camera.
  3. update; Many thanks to the above posters for great advice, ive not visited SGL for a while but the knowledgeable advice is something i remember it for. I went with the ZWO ASI120MC in the end and very glad that i did. - its a huge improvement over the spc880nc and the long exposure feature - while it might be noisy for DS imaging - is extremely useful for getting good focus with a bahtinov mask. A 3 second exposure is enough to get diffraction spikes on small stars and with a fast scope maybe even the tiny jovian moons will show the bahtinov spikes well enough to get focused. The framerates are stated as 30fps + but most of my AVI's so far are around 14fps, however this doesn't seem to hold the camera back at all and the sensor - mine is the colour version - picks up a lot of detail. I used it with the f5 200p newton with a 3xbarlow and could easily see the dark areas on Mars live onscreen before any stacking or sharpening. I just need to learn about the camera and get the best from it, the sensor has a lot of resolution and can use many different shapes and sizes at a time. I believe its called region of interest? ROI? Which is very useful in saving disk space when the planet only takes up a small area the rest is just blackness and uses up gigabytes of HD. Thanks again to the above members for the help, here is a few images from my first efforts with the ASI120MC used with my 200p newt and 3 x barlow.
  4. yeah same here, thank you for the info on the planetary cameras - and the realistic suggestions about not needing to necessarily buy the most expensive one you can, when there are less costly cameras that will do the same thing just as well. Thanks
  5. Which ATIK would you say was as good or better at both types of imaging ?
  6. To be honest the idea is starting to get through to me that this camera might be too much of a compromise - good at both but not excellent at either one. I certainly want a deep sky ccd but this time -and this budget- is probably not the right time. You are right that for the high end DSO imaging a better mount and bigger telescope is the way to go. My priority is planetary, and getting the IMGOH might be a let down for the main purpose i want it for. I just for a while hoped that i could get a decent planetary cam and an introduction to DS CCD imaging in one easy step, but it will be a long time until i can get this money again so i need to make it count.
  7. Thank you. I should say that if my webcam ever fails as a guide camera the lumenera lu070m would take its place so really not in need of a guide camera, How about those small DSO objects that would be dots in the FOV in both my 80mm and 200mm scopes? I am fascinated by the tiny galaxies and would love to get closer to them with imaging, but the dslr and telescope combination is a big field of view where these objects get lost in - do smaller chips increase magnification/focal length having the effect of seeing smaller object better? Thanks for your help
  8. I did see the review, thank you I think - if i understand correctly - that if the IMGOH was to be used the cooling wouldn't be effective because it would still need to be very large numbers of short exposures rather than a few longer exposures? I thought the thats what the cooling would be for. I guess i'm not looking for amazing resolution but for larger objects the dslr is good, but for smaller objects i'm stuck with a huge frame around the edge that gets cropped, and the remaining image is very low res. I would ideally like a camera that is good at both, but I would still have the widefield and mid-size by using the dslr with the 80mm/200mm. The point was originally to get a planetary imaging camera- I just came across the QHY IMGOH and considered saving up for a better camera all together which is what I hoped the IMGOH would be -but maybe it is just 'okay' at both types of images but not excellent at either planetary or deepsky. where the ASI120mc is at least excellent at one (planets)? I assume the ASI120mc would suffer noise at long exposure (without being DIY modified) more than the QHY IMGOH? I'm not sure i fully understand why the cooled CCD would need many much shorter exposures, especially when compared to the uncooled CMOS of ASI120.... ? Thank you for the input btw - its an area i'm not exactly familiar with.
  9. hello there, please help I am looking to take the next step in astro-imaging and to improve on my set-up. First, my current kit is a 200p newt f5 on an EQ5 goto. I love both planetary and deepsky, and use a modded 350D and a spc990nc for these, and recently obtained a ed80 refractor for extended DSO's regarding larger FOV. So, with my interest in planetary imaging my focus was on the ASI120MC as its good price and popularity seem to speak for it rather well. The idea that it 'might' do long exposure was a huge bonus to my plans as even with the 8"newt at 1000mm focal length I find smaller nebula and galaxies difficult with a wide sensor dslr. And the noise can be a bit over powering with the older canon. And when I saw the review on the QHY IMGOH my immediate reaction was to put my liver on the black market and hit 'ADD TO BASKET' ! I just thought that with my old dslr being not bad at deep sky (for now at least) maybe the main reason for buying the CCD was planetary imaging. And want to really get to know the few cameras ive got in mind. I know the mono chips are better but I tried with the lumenera lu070m and didn't get the magical results i'd hoped for, so if the quality loss is not too severe it'd be my preference to go colour all the way . So i'm looking at comparing the following.; 1 ASI120MC - its mainly for planets and lunar but how does the longer exposures turn out? and does the smaller chip increase 'magnification' or focal length so that smaller deepsky objects are better photographed re quality and detail compared with massively cropping a small dot or blue patch from a dslr sensor image? The imaging source cheaper models ... - lets say the 399 for the IMGOH is maxxing out the budget they are popular and well regarded for planetary, not sure if they do long exposure at all, and although its the secondary factor in deciding on which camera the idea that small DSO's can be within reach of the otherwise dedicated planetary imager is very appealing to me. QHY IMGOH - on paper this seems like the perfect choice even with the kidney i'd need to sell, but does it have many bad points? are the planetary capabilities as good as the above cams considering there may be compromises in design to fit the features of deep sky AND planetary imager into a relatively competitive price ? There are the other QHY cameras, imaging source, zwo - and some ive missed entirely, so if anyone can add to the info or just help with the tech stuff - ive no idea about pixel size or quantum efficiency etc. and can live without the knowledge as long as the camera works well in my scope Thank you muchly for any input or advice (in advance)
  10. Wow, Zakalwe those images are amazing! - I can see the definite improvement over the OSC but unfortunately my scope seems to struggle to give me that kind of detail to work with Might be collimation or something but I'm lucky if my filtered color channel shows detail between the two bands or even the red spot in bad conditions - I think i'd need a much better scope to start getting the full benefit from the more complex techniques of mono imaging. EDIT: there is also the cheaper filters i'm using - in fact with electric filterwheels etc. it looks like budget is another limiting factor for me. I'm in the process of trying to collimate a C8 which is slow progress but one day it might take over from my 200p newt as a planetary scope. Thank you for the link, very good stuff and helpful comparisons
  11. I think my problem is trying for the convenience after fumbling with filterwheels and focus then stacking three different lots of data, may even be laziness in disguise I did try the mono cam with the results being worse rather than better when compared to the spc900.. - see above images - so when i put the ease of use and fun of webcam imaging with the idea that mono chips only give a limited amount of edge over colour I really find it worrying to invest that much money in a mono camera that will end up giving me similar hassle and results as the lumenera experience. I dont have any doubt that mono has the advantage - more sensitivity, each colour using the whole chip, processing having great control and flexibilty over each channel independently etc. but there is so little clear skies and time to practice, and even then the atmosphere might be against you. The one shot colour seems to hold more allure despite the sacrifice of the extra quality - is it really a big difference? I am l.ooking at the zwo ASI120 colour - but there has been mention of the QHY IMGOH - it looks pretty good even compared to the ASI120 ---- Its a little over budget but is it worth it?
  12. I like the idea of a OSC camera, there is less to worry about during capture and its a technique im familiar with from using the webcam. I will certainly keep the filters and lumenera in case it does just come together one day, but as it is i cant improve my images that way and really want to start trying to get more serious about it. A good colour camera is something i think will make it a bit more enjoyable as well as helping to improve my images. I really appreciate the advice and input from this thread thank you Regards Aenima
  13. Yes webcams get sold for loads on ebay. People forget they are just webcams I think seeing as there doesn't seem to be any benefit to getting the ASI034 over the ASI120 the choice is pretty easy.? There's the 130 though which is interestingly similar except for a larger sensor.... this might lessen the planetary side of things while helping with deep sky stiff? Not sure on that but I use a canon 350D for deepsky so i'm doubtful the ASI130 will be better ....possibly? I use the baader absorptive 'beginner' set - about 70 pounds - so maybe the filters are letting the rest of the optics down a little. I did want to try long exposure with the RGB filters, maybe the ASI120MC will be suitable for some targets -and without the need for filters? ah, well one thing at a time.
  14. I have been using the old faithful SPC900 for planetary imaging with an 8" newtonian. Now i'm looking to take the next step because i'm hooked on imaging Jupiter and the moon. I hope no-one mind me asking about the cameras in this discussion? I have tried taking that 'next step' by using my lumenera LU070m mono camera with basic RGB filters, but the results are very below expectation compared with the hassle i put in with the filterwheel and focussing etc. I found that without the filters and wheel the lu070m gave better results than the colour webcam, but somehow this gets lost in he optical path or the filters are rubbish - baader beginner set - so the idea of staying with OSC capture and process is quite tempting now. I wish i could make the lumenera work but its not looking good. Also uk weather allows 30 seconds a week for practice so its all a bit of a mess about. The RGB filter set could one day be used for DSO's? Anyway, sorry - my question is ve3ry similar to the OP's - for my f5/ 8" newt and a limited budget which camera would be best? Budget as always is restrictive, i'm hoping to get about 300 gbp and looking at the ASI120 or the celestron neximage5..... after reading the thread the imaging source cameras have joined the potential candidates (thanks to the contributors to this useful thread btw). Can anyone toss in a few ideas on this? i havent got a clue about pixel size or the other tech stuff - all i can say is my scope is f5 8" i use a televue 3x barlow and seem to get on easier with OSC despite trying with the LU070m. Any help massively welcome, and thank you for the thread content so far - greatly useful Regards Aenima These - the first two - are examples of the images the webcam is giving compared with what ive got from the mono-RGB session
  15. Thats very nice, thank you for the comment There are more easier ways and better equipment out there but its a good feeling to get good results in spite of the disadvantages and at the end of the day (night?) if you enjoyed your session and are happy with the images its a win! This forum is full of useful info and helpful people so before you buy anything do searches and ask more questions. Anything you think i might be able to help let me know. Good luck.
  16. That is the set-up i use. You will likely be advised that the scope is overweight on that mount - and unfortunately its correct - as the tracking will struggle a little under the pressure. Having said that, there's really no reason to stop making plans to do astro-imaging - with a little attention to detail there are many fine images waiting in the sky for your set-up. I would suggest you start with lunar imaging. The two types of photography - solar system, and deep sky - need different camera types. Planetary/lunar are done with webcams or similar design cameras to give fast framerate video footage that you stack, and on the other hand deep sky needs a large sensor ( usually a DSLR) which does longer exposures. Thats why the moon is a good starting place. The tracking wont need to be super accurate and it can be done with a reasonably simple pc webcam. All the software is free as well so a good plus there. I would also recommend, if you can not stretch the budget to get the 300 buck synscan goto (amazingly useful but not essential) you look into 'Astroeq' a gadget and modification that can transform the basic RA/DEC motor kit into a fully functional goto system which will likely allow for autoguiding in the future should you get hooked and venture into 'deep' deep sky imaging. :.o But for now, the most important bit is the tracking (esp for DSO's), if you can afford the 'dual axis motor kit' for the eq5 and adapt it as per ASTROEQ instructions then you'll be able to make good use of a DSLR like the very worthy canon 1100D or 1000D which even unmodified (for nebulas some folks remove the built in IR filter to pick up more wavelengths of light) the canon dslr can catch quite a lot in just a 30sec exposure. Unless you incorporate autoguiding the exposures will be limited to about 30-40 secs before stars start to trail). But things like bright galaxies and star clusters as well as the larger planetary nebulae ie ring nebula, dumbell nebula, orion nebula etc. are all do-able with 30sec exposures, just take 30 of them and stack them in deepskystacker (more brilliant freeware) If you look at my signature and follow the link to my picz gallery it'll give a idea what the 200P/EQ5 combination will do even in very amateur hands like mine Also a link to a disscusion on astroeq: http://stargazerslounge.com/topic/188877-astroeq-for-eq-mounts/ Clear skies and best of luck. Regards Aenima
  17. From the album: The next step.

    Really happy with this lucky capture, the shadow is well placed to the left and the moon is just visible on top of the great red spot to the right. 200p / spc900 / 3x barlow

    © Aenima

  18. Aenima


    From the album: The next step.

    Trying an old favourite with new scope. ED80's FOV is perfect for this brilliant cluster and all its nebulosity.

    © Aenima

  19. Aenima

    heart nebula

    From the album: The next step.

    Waited ages to capture this as my 200p newt had way too little field of view, and even with the ED80 it didn't all fit on the 350D's sensor. Pretty happy though with the image - approx 12 lights no calibration.

    © Aenima

  20. Aenima

    bodes Sn 28th Feb

    From the album: The next step.

    Captured after the hype had died down and the supernova had started to fade, still just visible in the picture here.

    © Aenima

  21. Aenima

    flaming star nebula

    From the album: The next step.

    New object to me, new processing techniques to practice and semi-new equipment - all in all could've turned out worse. :)

    © Aenima

  22. Aenima

    lunar mosaic mono

    From the album: The next step.

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