Celestron Nexstar 8SE with 6.3 focal reducer SV 90mm SVT Raptor APO Triplet Refractor Celestron AS-GT (Hypertuned) Orion SSAG/Mini-guider Canon T3i DSLR modded with Baader UV/IR filter Backyard EOS/Deep Sky Stacker/Photoshop CS5
Quote:to our CCD imagers that are, well, quite naive
Quote:That outcome is wonderful Tel and thank you for the same. I also thank Tom who helped out. Did you use the first image ( without auto levels ) or the second one? I assume you used Photoshop CS to do this as with Elements 9, I am not sure if the outcome will be as neat. As I informed you earlier, I tried doing the alignment with 'quick tool' and the outcome was murky ( I must have spent more than an hour for sure ). This one you did is really neat and does not even look as if the layer has been merged. No artifacts present.Would it be appropriate to request listing down step by step process, if not a short video on youtube. Thanks again.Don Quixote btw. ( too much guinness )
Truth is the cubed root of Verbosity.
Live Life Right. Aim High, Think High
Zhumell Z8. C6-SGT / ZEQ25GT. AR102 / WO Z71.
Celestron 15 x 70 / Nikon 10 x 50 action series. Modest range of eyepieces, TV Barlow, Diagonals, FR's. Skytracker / Astronomik CLS II.
Canon 70D / 550D.
Quote:Quote:That outcome is wonderful Tel and thank you for the same. I also thank Tom who helped out. Did you use the first image ( without auto levels ) or the second one? I assume you used Photoshop CS to do this as with Elements 9, I am not sure if the outcome will be as neat. As I informed you earlier, I tried doing the alignment with 'quick tool' and the outcome was murky ( I must have spent more than an hour for sure ). This one you did is really neat and does not even look as if the layer has been merged. No artifacts present.Would it be appropriate to request listing down step by step process, if not a short video on youtube. Thanks again.Don Quixote btw. ( too much guinness ) Hi Haseeb,Once again my apologies for my slow response: nowadays, I seem always to be playing "Catch Up" !In answer to your questions though, yes, I used P/Shop CS2 and yes, the first, non-auto-levelled 15 second image. However before layering it into the 30 second image, I stretched it a little, manually, using "Levels" to bring up the core, but not so much as to lose what detail there was of the Trapezium and the three relatively bright stars near to it. This image was also quite "noisy", (jpeg format ?), which I removed as best I could by selecting "Filter" followed by "Despeckle".Turning to the second 30 second image, I downsized it slightly to match that of the 15 second exposure and then proceeded to layer the 15 second exposure over the 30 second exposure.This can be done in many ways but like Milby's layering/masking video showed,http://www.youtube.com/watch?v=THlwDf4zDDowith the 15 second exposure "on top", I pressed "Control A" to "Select" followed by "Control C" to "Copy".I then brought the 30 second exposure to the fore on screen and pressed "Control V" to paste in the 15 second image.I now had a dominant 15 second exposure on the screen which I adjusted by means of the "Opacity" slider to bring the 30 second exposure through. All this, by the way, can be gleaned from Milby's "You-tube" video.Once the 30 second exposure had emerged to a suitable intensity but one that preserved the elements of the Trapezium et al., the two overlayed exposures needed to be aligned.Again, Milby's You-tube video demonstrates how this is done using the "Zoom" feature and the "Move" tool. Following then a satisfactory alignment of both 15 second and 30 second images, the composite image was reduced to normal size and "Layer Flattened" for the usual further processing: (Levels, Curves, Sharpen, Colour Balance, Hue and Saturation etc.) In this instance I did not use a "Mask".Finally, I should say, with I hope no offence caused, but that I could only work from the basic images supplied least of all in the not too beneficial jpeg format. I'm sure therefore, you'd agree, such is not the best ? Consequently, and like you, I found the layered image initially "murky" or dull and as such, despite manipulating the above P/Shop "tools" plus a little cheating by passing the composite image through the processing part of my "Nebulosity" capture software, what I produced was the best I could, given all other constraints, time being the greatest.Haseeb, I hope the above helps and is clear but if not, please let me know and I'll try to clarify as best I can.Once again apologies for the delayed response.Best regards,Tel
Quote:Hi Tom,Thank you for taking the time out to do this. If I understand this correctly, you merged both images but performed a sort of 'eraser' on the core? At least this much I know I am capable off. I really need to up my processing skills.Btw, I like the rotated image.
Equipment... Uncle Toms cabin observatory. some of this, some of that and some of the other! I am made of Star stuff, nothing more! Light Polution is so bad here, i call it the "twilight zone".
Nexstar 8SE, Celestron MAK C90, Skywatcher Backpacker 80, ES 102 ED, Orion XT4.5, Celestron 15x70 binos Baader Maxbright Binoviewers, ES 82*-6.7mm, 8.8, 14, 14, and 24mm EPs, Celestron zoom EP CGEM DX mount, ASI210mc, Canon T2i More stuff than I care to add!
CPC800 XLT SVR90T on an M1 Mount Canon XSi Ethos 13mm, Televue Plossl 25mm, some other eyepieces and filters.
Quote:I posted my first picture of Jupiter on the original AP thread and asked the following. I used a 2x powermate with this capture how much is practicle with the 8se, 3,4. or 5x? Thamks.
Quote:I think I get it now. I know PSE has that opacity slider. I will try to merge both images and see if the opacity works. I assume I would require to use the quick tool to highlight the core.
Either way, I don't know what to say except thank you wholeheartedly for taking time out to explain things.
Astronomy compels us to look upwards and leads us from this world to another.
CPC1100 NexStar 8SE
E.Ps:-1.25"..6.3mm 15mm 25mm & 40mm - 2" W.A..26mm 30mm & 38mm - Zooms:- Baader 8 x 24mm & AE 8 x 24mm
Finders:- RACI 9x50, 8x50 & GLP
Filters:- 2" Polarised, UHC, & OIII + Solar
Bits&Bobs:- 2" X2 Barlow, Dew Shield, Motor focuser, 0.6 Focal Reducer, 17Ah power pack.
Dream Maker Observatory SkyShed P.O.D
Look up and behold a wonderous sight! ********************** Meade ETX105 & NexStar 6SE Hyperion 8-24mm, MRF and 8x50 RACI finder. Canon EOS 550D (T2i) DSLR, SPC880 & 900 webcams for AP
Skip Celestron NexStar 6SE Orion SkyQuest XT10i Intelliscope Lots of cheap (inexpensive) glass and a bunch of other astro-stuff. Fort Worth Astronomical Society Austin Astronomical Society
Clear Skies, TonyScopes: Celestron 150mm SCT, ES 102mm refractor, 114mm Newt, Circle T 80mm refractor, Cel./Vix. 60mm refractor "the Brute" EP's: Various and sundry along with barlows WO and ES Dielectric Diagonals Filters: DGM Optics NPB, Orion SkyGlow Filter, color and longpass AstroZap Dew Shield, Vibration Pads etc... AstroPlanner V2.1, SkySafari 4 Plus, Vortex 8X42, 60's 7X35 Binocs Astronomy in the Orange Zone! ...73 de KM5JH...
Quote:Well after a month of truly awful weather here in Devon, I finally had a clear night tonight
I've also got my 5SE tracking really well (it seems to be running more smoothly now, or perhaps I'm just getting better at aligning it!). Anyway, I know it's nothing near what you guys have acheived but I'm quite pleased with this.
Single exposure, ISO 6400, 25 secs, EOS 550d
Full version here: http://www.flickr.com/photos/69979581@N03/8438419963/in/pool-bbcskyatnight
Are there any good tutorials for using DSS? I had a 'dabble' with it a couple of weeks ago, but the result was a total mess!!!