SharpCap Forums

Thanks Robin, Can't argue with your comment about refractors. I think that I just like the diffraction spike effect, colour faithfulness and low cost per photon of Newts. Thanks for your comment on image quality. It was exactly the blooming that I was mainly seeking feedback on. I like the look of t...

Given that the above was undersampled (1.55 arc sec pixel relative to seeing which must have been around 2.5 arcsec or less) and also dithered (using SharpCaps non guided dither) the data provided an opportunity to compare Debayering with CFA x1 and CFA x2 drizzling. It is always nice to see that th...

Hi Robin, Just to comment that I have been using this and it seems quite useful. The contour markings are a bit hard to see (yellow perhaps rather than red?) Wonder whether the analysis might (depending on exposure length) sometimes be better applied to integrations of a few aligned frames rather th...

That looks a fascinating little engineering project. Thanks for sharing it. I'd never heard of Arduino before but the link provided a good introduction. With that and a 3D printer the world of designing and controlling things via software looks like it's open to the hobbyist. Above my head though --...

Recently - in the very few hours of clear sky available - I have been attempting to analyse and improve the performance of my old William Optics 110 mm tmb F 7.0 apo refractor in combination with a Flat6A III 0.8X reducer flattener. Most of my experience has been with Newtonian reflectors and I am l...

That is a very good find Menno! I must admit that when I too quickly read your script I did start wondering where the obscure constellation 'Stellarium' might be before I realised that you meant the planetarium software . Tim

Many thanks Robin, Looking at the images more carefully you choice is right I think and not only aesthetically. Overly suppressing green to get closer to a pre- conceived notion that the nebula should look a deeper red distorted the overall colour balance and reduced the SNR. The bright blue does lo...

For some objects it is relatively easy to make choices about the most appropriate coloration. Star clusters and galaxies - RGB plus optionally NB enhanced HA features - or Wolf Rayet nebula for example where just OIII and HA narrowband will suffice to capture most all of the 'interesting' visible li...

Like it ! I think that being able to do observational EEA to that sort of quality in a Bortle 8 zone within only 10 min plus capture a half decent instant image is one of the great strengths of Sharpcap -- now enhanced in 4.1 with better stretching. Tonight I was out on a cold night teaching a newbi...

Thanks Douglas, I'll bear those comments in mind in pursuing further variables. Interesting to see the increase in activity! Tim