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  #1  
Old 12-10-2005, 07:54 AM
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Tassie Mars

I think i know how ice felt when he tried his 5x televue!

My new equipment was processing tips courtesy of ice and rumples riot.

This one is for you guys!

I know in later months, when I get better results, i will look back and get embarassed as dedicating this small image to the two planet masters, but the gesture is in recognition of their fantastic help and how happy it has made me.
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  #2  
Old 12-10-2005, 08:06 AM
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h0ughy (David)
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well done, at least you made the effort. I haven't been game yet because I have no skills.
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  #3  
Old 12-10-2005, 08:11 AM
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thanks houghy, skills easily fixed, have you heard of snake valley???
lots of pros there to help!

there is a guy on this forum with his signature full of snake valley stuff.

yowie or yoffie, or something like that.
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Old 12-10-2005, 08:19 AM
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Quote:
Originally Posted by davidpretorius
thanks houghy, skills easily fixed, have you heard of snake valley???
lots of pros there to help!

there is a guy on this forum with his signature full of snake valley stuff.

yowie or yoffie, or something like that.
unfortunately I have already been to 2 star parties this year (next year it will be 3).
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  #5  
Old 12-10-2005, 08:22 AM
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argh, but ken and i weren't there,

we will teach you how to break a toucam in frustration!
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  #6  
Old 12-10-2005, 08:28 AM
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Keeping on topic, I will be giving my LPI and DSI a go shortly, so i will see what I can get. Although i have no 5x powermate!
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  #7  
Old 12-10-2005, 08:30 AM
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mike will have his new 5x at star camp!!!!
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Old 12-10-2005, 08:51 AM
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Quote:
Originally Posted by davidpretorius
mike will have his new 5x at star camp!!!!

Yes one will have you scatter the rose petals for these demi gods to grace your presence. Dare you speak to one , grand master Ken will perform the initiation ceremony, and the sacrificial Toucam offered to the gods for their apeasement! I can see it now, they will be in overload from questions from mugs like me.
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  #9  
Old 12-10-2005, 08:56 AM
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roffy you don't need a 5x powermate, as your 12" scope has a huge focal length as it is. A 2x or 2.5x is all you need.

Great attempt Dave, well done on the dob image.
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  #10  
Old 12-10-2005, 09:05 AM
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Quote:
Originally Posted by iceman
roffy you don't need a 5x powermate, as your 12" scope has a huge focal length as it is. A 2x or 2.5x is all you need.

Great attempt Dave, well done on the dob image.

I was actually toying with the idea of eyepiece projection. i have a 2" MaxView DSLR II (see gratuitous pictures below) and will be trying this method to see if it will work.
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  #11  
Old 12-10-2005, 09:20 AM
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Quote:
Originally Posted by h0ughy
Yes one will have you scatter the rose petals for these demi gods to grace your presence. Dare you speak to one , grand master Ken will perform the initiation ceremony, and the sacrificial Toucam offered to the gods for their apeasement! I can see it now, they will be in overload from questions from mugs like me.
by appointments only.

i also get these flashes of Wayne's World---> "We're not worthy, We're not worthy"
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  #12  
Old 12-10-2005, 10:36 AM
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Nice 1 Davo! Your gettin' betta with every pic taken mate!
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  #13  
Old 12-10-2005, 10:51 AM
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Good try and image looks nice and crisp.

Two things though. You should get more frames 75 is a little light, so back of the quality a little and try again. More frames will help with reducing the grainy texture and help when you resample. Next thing you need to get is a barlow or powermate. You know the results will be bigger and better to work on.

Much improved though and well on your way to getting fine images. Beware though, you are now heading down the path of perfectionism.

Keep em coming.
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  #14  
Old 12-10-2005, 11:07 AM
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good one davo!
go dob power!
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  #15  
Old 12-10-2005, 11:36 AM
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thanks all for your comments



Quote:
Originally Posted by rumples riot
Good try and image looks nice and crisp.

Two things though. You should get more frames 75 is a little light, so back of the quality a little and try again. More frames will help with reducing the grainy texture and help when you resample. Next thing you need to get is a barlow or powermate. You know the results will be bigger and better to work on.

Much improved though and well on your way to getting fine images. Beware though, you are now heading down the path of perfectionism.

Keep em coming.
rumples,

i started with the colour raw mod last night and using iris5.1 for capture, seem to capture fine, but had a hell of a time trying to process ie stack, align etc in iris, so backed off the raw and went back to factory setting at 5fps. Used iris again ti capture and i get 15 to 20 secs for the image to cross my field of view ie the middle 2/3's.

i took 2 passes so 150 frames in total.

followed you instructions for registax, which were great!

i went to try resampling, but i think because the image is not centred (ie due to lack of tracking) the resampling stuffs up and i get floating point errors. ppmcentre reckons there is not enough detail to work with????

also i tried adjusting exposure and gain. 1/33 and 1/50 no gain = bright white disc. 1/500 and 1/1000 seems to give the best histogram, which i included for your perusal. Is this what you were meaning getting them to the right? Is this histogram ok?

ice is sending me his two older barlows and i should have in next few days, so lets see how they go.

what do you use with your raw capture iris, k3ccd???

thanks for your help!
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  #16  
Old 12-10-2005, 01:44 PM
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Dave, the histogram was fine but you might like to get is a little to the left now, not much, just a little. Your slightly overexposing. But this is a great point to start from.

When you get the barlows the image exposure will drop back to 1/50 or 1/33.

I forgot that you don't have tracking, so this is still pretty good, just bear in mind that this will get much harder once you place a barlow in. So follow Mike's tutorial on dob imaging. He perfected it and gave a really good tut on it.

As for the raw colour mod, make usre you have the right one. There are two on the web site and the one you want is not easy to find. It just makes the image on the screen look less grainy and gives a smoother finished image after processing. I use K3CCDtools for all my image capture on planets and find it the easiest to use. Anthony (Bird) says that I will eventually get sick of my current setup and head in his direction. I suspect he is correct. Still I like a challenge and need to address a lot of other issues with my scope before I head in his direction.

I don't use Iris so I don't know much about it, nor have I ever used ppmcenter, perhaps ask Mike or Bird. Anthony wrote it and would know. When you resample try using the Mitchell Filter that seems to work better in my opinion and it was a suggestion from Anthony. As for floating point error, go to tracking in registax3 and uncheck the warning on checking. That should stop it. If not just restart it.

Stay at 5 fps where possible, you will get a smoother image as a result. On bad nights use 10. I tried using 15 but found this create bad artifacts that I could not get rid of.

Happy to help Dave, just cool it down on the hero worship stuff, I get embarrassed and it is undeserving. Bird is the man you should be praising, his work is way cool.

Regards Paul
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  #17  
Old 12-10-2005, 02:17 PM
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Thanks again, will try that resampling!

K3ccd, is that the trial version or the newer version2 ?

does k3ccd handle all the raw conversions to then produce a heap of bitmaps to feed to registax?

I like K3ccd as it also has the long exposure mod side for my toucam.


Quote:
Originally Posted by rumples riot
Happy to help Dave, just cool it down on the hero worship stuff, I get embarrassed and it is undeserving. Bird is the man you should be praising, his work is way cool.

Regards Paul
no rose petals at star camp???

bugga!

I am truly sorry to have made you uncomfortable, Ken and I will tone down with the silly bugga stuff.

But you are wrong about being undeserving, three little registax beginners have made a huge leap forward thanks to you. That is deserving and we really appreciate it.
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  #18  
Old 12-10-2005, 02:37 PM
rumples riot
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Dave I make AVI's with K3ccdtools and I only use the trial version. I got the colour mod from another site and the mod kit is called WrcMac. It is an emulator of some description and it loads the colour mod into the camera. The site is here: http://www.astrosurf.com/astrobond/ebrawe.htm

The colour mod is found on the site.
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  #19  
Old 12-10-2005, 02:47 PM
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yup, that is the one i have got. do you do anything special in k3ccd ie produce fit files for registax, or do you stack in k3ccd?
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  #20  
Old 12-10-2005, 03:00 PM
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k3ccd records avi's, you don't need FIT files. Load the avi straight into registax. Use version 1 trial version, no need for version 2 which is used for those doing serious Deep Sky imaging.

You can capture Mars for about 3-4 minutes before rotation will see image blurring at a given focal length of approx 6000mm, so at your small image scale, you could go for 5 minutes and you probably wouldn't notice rotation.

So go for a few more passes through the FOV and see if it gives you some more GOOD frames to stack. But don't stack more just for the sake of it - I always stacker fewer good frames, than more average frames. It's simple logic of course, but you'll get a better result as average frames will just blur the features. I've been known to stack as little as 20-50 frames for some of my dob work in the past. Hell, for some lunar images i've used single frames as the final result!
Yes, they were a bit noisy, but due to the bad seeing it gave the best result for me.

I'll shoot those barlows off in the mail tomorrow, hopefully you'll get them on Friday. It will give you a bigger image scale, but it will also double the frustration factor as the planet will drift through the FOV in half the time or less.
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