Thank you for your reply, I was specifically looking for some info on the kind results in practice obtained by subtracting the "continuum" from the "weak" ...
Gerd, Par focal? Ha with RGB? Up to what focal ratio and what is th ebandpass? thanks Brian ... Have a look at ASTRONOMIK. (www.astronomik.com) We do offer...
Hi Brian ! ... The H-Alpha is 15nm. All filters are made of 1mm thick glass, and the tickness differs only by something like 1/100mm. That´s "parfocal enough"...
I have a new SKY 90 fitted with a filter wheel, both used tonight for the first time. I inserted just two filters, a Lumicon Light Polution Filter and an ...
Hi Peter ! What you have seen is normal physics :-) When you insert a piece of glass the focus is shifted outward. The ticker the glass the more is the focus...
Super stuff. I really liked IC1396, but then I saw the Rosette image - exquisite. Ron Wodaski author of The New CCD Astronomy http://www.newastro.com ... From:...
Hi Richard, Those are really beautiful. I've seen your work before but I've never emailed you, they are really good. How do you determine subexposures for...
... never ... subexposures ... Thanks for the comment Ron. I do pretty much like you do: I expose to just short of saturation typically. Sometimes I will let a...
... image - ... Thanks Ron. I was really pleased and very surprised just how those two turned out. Using this weird filter combination is sort of like...
this past weekend I shot color using emission line filters with my dream machine used on my telecompressed traveller (F=457.5mm baseline). With the 1" x 1"...
Hello everyone, I was out the other night and imaged IC 1805 in Ha. I tried to get the color also but the moon spoiled the time I put into it, so I guess I ...
Hi Everyone, I decided to give the RGB data I took last week another go. I used the technique Russell Croman describes on his excellent web site for ...
... <rwstanley@l...> wrote: I think it turned out ... the ... be ... image ... Nice job Ron. Your focus and guiding are good and so is the processing. That is...
Thanks Richard, Those are beautiful images on your site. I like the SXV a great deal, its sensitivity allows me to shoot shorter unguided exposures with my ...
... deal, ... my ... pixels ... to ... the Dream Machine is my favorite camera. I also have an ST10XME and an ST7E. It is sort of specialized with the huge 24...
Hi, I have just received my Astronomik filter drawer set. It looks very good ! I want to insert it between a ST8 and an AO7 ... I have tried combinations of...
I finished my Rosette mosaic project last night. The previous shot I posted was a taste of the final result. I ended up with a total of 6 hours and 40 minutes...
Hi, I have got the new Astronomik 6 position filterwheel with 34mm clear aperture for using with a newly purchase 2nd hand water-cooling Genesis KAF1602E CCD...
... clear ... image ... that looks good Edward. You have good focus and guiding. Maybe you can brighten the object a tad with the curves command in Photoshop ...
Hi Rich, Thank for the kind comment. I am using a LCD monitor on my home computer (which I do all my processing), and it shows shadows slightly brighter than...
I decided to shoot some Hbeta last night and turned my attention to NGC1499/Calif Nebula. It was interesting to me to see no [OIII] at all yet pretty ...
Nicely done, once again! Your narrow-band work is inspiring. I wonder if there is a source of general info on the spectral makeup of various deep-sky...
Some useful links along this line: http://www.blackskies.com/links.html http://cf.williams.edu/public/nebulae/ Ron Wodaski The New CCD Astronomy Book web site:...
... of ... Thanks for the comments. Actually there are lots of spectroscopic studies of various nebulae out there. I have found some on the web, and have a...
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