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daverave83

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Everything posted by daverave83

  1. Awsome image Tried last night and failed due to cloud very frustrating .....
  2. I wanted to do the cone nebula but need the longpass 495nm Filter to get rid of most of the CA with my scope. However the Skywatcher Quattro f4 Imaging Newtonian is the scope i want, when i have the funds that is!
  3. It's just on a standard goto, Saving up hard for an HEQ5 Pro & APO Scope, eventually the SLT102 Will come my guide scope
  4. Opps wrong way round M37 & M35
  5. Hey Guys. Thought of getting some clusters, due to Fog. Couple of subs on ISO800 & ISO1600. Enjoy M35 M37
  6. I am doing the some clusters tonight M35 & M37 should be easy targets. fog is early tonight 11pm.
  7. Hey there, Luckily enough i have a Serial to USB adaptor, i was thinking of a 10meter USB cable with the 4 usb connections not the greatest ideal but better than running in and out the house the check the images are processing.
  8. What i need is a long/Wireless USB hub. All Connections go into the hub, with the wireless dongle in the Laptop.
  9. It's a simple goto, untill i upgrade to the HEQ5
  10. Hey Guys, As the post says is there a way to control the camera and goto scope wirelessly? at the moment i setup my laptop outside and with my laptop and noticed that damage can occur if the temprature dropped below 0'c, at the moment i leave the laptop running over 2 hours whilst it takes pcitures so not the best route. What I am looking for is a simple setup and shoot, to all the normal procedures i.e. 2 star align and focus, then do the rest of the imaging in the comfort of my home, this will save in my laptop getting damaged. Security wise - a webcam should suffice?
  11. Last night was worth it, 2 hours of data of IC 443 but my oh my hard target or what!! Tried both OII and HA filters just can't get the nebulosity. Also had a problem with my laptop, does anyone get this problem that if it's too cold it stops responding???
  12. Awsome image, love the colours. Wish I had a portable dob, that would make things easier
  13. Hey Guys, This was definitely a harder target to capture, image processed as follows 15 x 60 secs ISO 800 15 x 60 secs ISO 1600 30 x 60 secs OII 30 x 60 secs HA I believe that more nebulosity would be better on longer exposures but limited with a goto.
  14. Well the first night in a lonnnnng time, i am making the most of it. Who else is making the most of it???
  15. Hey there. I didn't say that a filter would turn an Achro into Tak, however it is proven that a Longpass 495nm does reduce CA upto 80-90%, these filters were specially made for Achro due to it's limits hence the reason why they also brought out the semi apo also, so people dont have to spend vasts amount of money on a tak and still get good performance. http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/6294607/Main/6294607 check the 3rd image, for an achro that is impressive, so understand how you can disagree and that is your opinion however proof is in the pudding as they say and good quality images can be done but not as superior as a tak.
  16. Thanks Mac Baader Fringer Killer does indeed only remove 50% of the CA, and the price of them is about 50 quid. However reading various forums Baader Longpass 495nm filter can almost turn an Achromat into an AP, the only difference is the stars are either orange/yellow instead of the normal contrast. http://www.cloudynights.com/ubbthreads/showflat.php/Number/5047210 http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/6113911/page/0/view/collapsed/sb/5/o/all/fpart/1 My experiment is to see if at low cost you can get near enough the same images you get from an APO, eventually i will go for a Skywatcher Evostar Apochromatic ED80 Pro on a EQ5 Pro Mount, but that is a long term save. This the detail i have found Application: Suppresses the secondary spectrum (blue) at achromatic refractors. Image definition is increased.
  17. I own the SLT 102 GOTO And overall they are not bad scopes visually and some short AP if you learn about field rotation. They do stay with the object however they are not as superior as the GEM of EQ5 and above, i see this as a learning curve to understand of how to align and what is required. So what can you get imaging? a maximum of 70 sec exposures maybe more depending on when the goto re-aligns, the results i had that 2 images out of 5 has field rotation after 65 secs, which i think is great of you want to understand what AP is all about to give you an idea see below. what are the dissavantages? Scope does get the full affects of CA (chromatic aberration) which causes halos around bright objects, however fringe killers filters > filter out the wavelengths to reduce the affect. Goto isn't as good as GEM / EQ5 however overall best for beginners
  18. Thats an amazing result for a single 90s Sub. I understand what your saying about make use of the night, but sometimes some objects need more than just one sub to bring out the nebulosity, but that's just my humble opinion. I wish i could just take one sub of an image and be happy with it, but sometimes some obstacles get in the way that hinder an image. for example cloud, wind, trailing, field rotation out of focus. An average night for me is 2hrs Minimum, but i let the Autotimer do the work, all i keep an eye on is the weather and that nobody wants to pinch my equipment.
  19. Agreed that you can't remove the wavelength completely as this due to the glass and the way it bends colours, but looking to ways to minimise it with a low cost. Looking at the prices of APO's and EQ5 you are looking at spending 1k+, however if you are thinking of dipping their feet into AP at a low cost i want to look at filters that can reduce the amount of CA to semi APO standard.
  20. That kind of makes sense. I currently have an HA Filter, so this means i would have to refocus on the blue spectrum? the question is how would i do this? So lets say i got M42 in my live view on my DSLR and got the focus to a pinpoint star, i would assume that it is looking at the Green/Yellow wavelengths how would i refocus on the Blue Wavelengths? could a OIII filter do this?
  21. Apparently the Wratten 8# and Baader Long pass 495nm filter reduce CA on stars upto 80-90%. for Example M42 Notice how the blue stars can't focus properly, this creates an Halo affect Another example is IC434 - Flame and Horse CA is alot more distinctive.
  22. Hey all, i am looking at different filters to see which results reduce CA, hopefully by the end of my investigation i can provide people who have Refractor Scopes better imaging views particulary on Deep Sky Objects. So what is Chromatic Abbreviation? This is where the spectrums of light don't focus at the same length, for example the focus is correct for Yellow and Green, but the out of focus is Blue/Red which is why you get Purple Halos. I have searched all over the internet for guides and way around to remove the CA, unfortunately there is no way to remove 100% of this, unless you focus on each spectrum of colour which can be very time consuming and expensive. Whats Filters will be the investigation? Wratten 8 = Baader Longpass 495nm = Baader Finge Killer = SkyGlow & Moon Filter = Once the weather clears i will try out each filter and post the final result.
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