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Hoi zusammen, ist mir einfach zu ruhig hier drin. Müssen mal etwas Action hier reinbringen, wenn schon das Wetter im Moment grad nicht so richtig mitspielt. Immerhin sind wir doch mittlerweile schon 4 Members hier drin  Cs Thilo |
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Oops sorry Fabio, just realised that it's not the best idea to talk german, mais mon francais cest pas trop bien, so perhaps better to go on in english  Well i just want to try to bring a little live here in our Swiss Channel. Skywatcher I allready know so whats about you. Im living in the Basel area, and normally my photo locations are in the BL and SO Jura Region. |
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| Yes, I generally tought it has more swiss people here.... |
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Hi Thilo, thanks for your message. Yes you can say it, weather is shit actually. I'm sad because it's been a couple of days that we had nice weather all day long but cloud in the evening :-( Bad and frustrating situation. To tell a bit more about me, I'm from Lausanne but I'm actually living in France, just across the boarder with Geneva. I'm Lucky because I'm on the country side and even if I have light pollution from Geneva I can still manage to get good pictures. I'm 35 and bought my first telescope two years ago in June 2014. It was the beginning of my Madness for astronomy and particularly astrophotography. I started astrophotography in August 2014 as I was a bit frustrated to miss details and colors during visual observing. Now I have several scopes :-) One newtonian Skywatcher 200/800 for visual, one Maksutov 180/2700 for planetary and moon, one RC 8' for galaxies and planetary nebulas and my last baby is a Takahashi FSQ85 for wide filed and nebulas, still in the box since three weeks, waiting for the motor/focuser to come next week. Unfortunately we can say that we are not in the right country to really enjoy our passion but we take what we can no ? And you guys, when did you started astro ? Ich kann Auch ein bisschen deutsch reden, schreiben, lesen aber ist mir immer besser in English. Dann kann ich alles 100% verstanden :-) SChönen Abend Fabio |
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Hi Swiss guys My little story: First, I'am 37 years old and I started with visual observations with an Schmidt Cassegrain 8" scope before 5 years or so, which I borrowed from a working-buddy. No Goto-Control, everything manually. I observed about 2 years with it, most of the time the Moon, Saturn and Jupiter. But no astrophotography. He wanted the telescope back someday and after a while I decided to buy my own telescope in May 2015: a Skywatcher Explorer 130P SynScan. After a few nights with it, I wanted to photography all this things in the sky. After a few tests I realized that this scope definitely is not for AP... It has an azimuthal mount... I really had absolutely no idea about AP  In August 2015 I decided to start with the Star Adventurer and a 200mm f/2.8 lens. And here I am: I still use the Star Adventurer mount, but auto guided (RA only), now a 400mm f/5.6 lens on my modified Canon EOS 70D(a). I think, for the next time I will countinue use this setup, I love this little Star Adventurer mount. Very fast setup time and with the auto guider and a good polar alignment very accurate. Probably some day an EQ5 or 6 mount and a newton telescope Good night, bonne nuit und gute Nacht ;-) Karol from Derendingen, Solothurn |
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Hi Karol, Thank you for the presentation. What you're achieving with your DSLR + Star Adventurer is amazing, congratulations to you ! I was just looking at your gallery, it's very nice ! Is your DSLR modded for astro ? Congratulations for your job ! Buona note |
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Hi Fabio and Carol, so now ist on me. am 48 and from Riehen BS. Started with astrophotografie exactly 1 year ago. I alway was fascinated by astronomie, but never get the kick to start with. Then i was with my wife in a restaurant on the Grimsel, and after the dinner i went out and saw the milky way, like i never saw it only by eyes. Got my camera, so this was my kick. Target was from beginning to do astropgotographie, so 2 months later i was in Bern to buy my first equippment. It was an Skywatcher 100ED refractor and an NEQ6 Mount. After some unsuccessfull session to align it correctly (always made som moon shots when i failed ), the 4th session i managed it, and my first deep sky Picture of Orion was catched.you can see it on my page here, but i really want to see the difference to the next one, probably next month Well in the last time i sold all my beginning equippment and replaced it with an EQ8, an 80/480 and a 107/700 Refractor. right, on the Limit for mobile but works fine, and the EQ8 is really incredible... Just thinking of a Little more focal lenght for next year. The mount is no longer the Problem Fabio, very nice to see you have all, i thinking about. i had 3 options. Newton, an RC or an SC. The newton was out very early (because of my limited Knowledge) and only the SC and RC were in the race, yes focal lenght was the reason. I compared a lot of pictures here, and also because of dew Problems, the SC was out. So since 2 months i am checking the RC options. Until i checked the Pictures here a Little better.. now the newton came back. And i found moe reasons what speaks for the newton. F4 or 5 compared of F8 (or better 9.25). And i found nor that the sharpness and contrast of a good photonewton comared to an RC seems to look better. A 1500mm f5 newton is my faforit at the moment. I really like the refractors, but a 1200mm potografically usable with <f7 is more than 10k... really too much. So nearly all RC pictures i found here, are a Little bit, how to say, not unsharp, but like washed... and Spikes are also there. The newtons seems to be more sharp, near to an refractor i found the last days... The other Thing. f5 or F9.25... this is nearly 3-4 times more exposure time... At the moment the main reason i tend to an newton, because i run always mobile... Ok, with reducer also the 10"RC has f5.35 but only 1340mm, but still the newton Pictures looks more sharp. Fabio, i saw you have all of them. What do you think about this? I think the newton you dont use photografically. How is your feeling with the RC? Today i checked a Little the newtons, and this one looks really nice to me. TS ONTC 303 mm f/5 Newton, or TS ONTC 303 mm f/4 Newton 1200-1500 mm fits perfectly. ok 1500 i prefer, and f5 , still good... Regards Thilo |
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Hmmm look at this... perhaps a moonlight focusser on it... nice http://www.teleskop-express.de/shop/product_info.php/info/p8972_GSO-12--F-4-M-LRN-Truss-Newton-Teleskop---Carbon-Gitterrohrtubus.html Ok.. only 1200mm, would prefer 1500... well we really have a hard life  |
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| Hi Fabio. Thanks for your words. Yes, I've a astro modified dslr. My last 4 images are made with it. Interesting thread here ;) Clear sky, Karol |
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Hi Karol and Thilo, Thilo, to answer your request, I will say that both are really good. I cannot say one is better to another. What you're saying about RC is correct ... but ... :-) it's important to keep in mind two important factors : seeing conditions and pixel scale. For example my pixel scale is at the very bottom limit with 0.58 arc sec / pixel. In our region it's better to look at 1 arc sec / pixel to 3 arc sec / pixel maximum. But, my scale is for example very good for very faint and small objects such as planetary nebulas and galaxies. Form reflection nebulas it's another story, the picture is never very "clean" and missing sharpness and contrast, I agree. The thing is to find the right CCD cheap with the right pixel size to reach this 1'' / pix to 3'' / pix knowing that 1.5 '' / pix should be the best option. I'm know reflecting on a new CCD cheap to optimize my pixel scale with the RC and also have a larger fov with the FSQ85 and I'll maybe choose the KAF-16200 cheap that we can find by Moravian, QSI or soon by Atik. With the RC in bin 2x2 I'll reach the 1.5'' / pix and have plus or minus the same resolution. We'll see actually I'm trying to spare money :-) Concerning Newtonian, there is nothing more to prove, they are really good. Thing is to choose the right one with right optic, a good coma corrector and a good focuser. The one you show us through your link seems to be good and I must say that I'm really happy with optics from GSO. I saw some tests in review and they have a good reputation. But don't forget the RC ;) It's just a question of pixel scale. For sure, newtonians are much more faster Astro is always difficult, a lot of choice :-) ahah Have a nice evening Fabio |
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Hi Fabio, you are absolutely right. I have the 8300, and the pixels are too small for this long focal lengt and the 8300 sensor has a Problem in binned mode, so this is no option. The Asi 1600 i only use for widefields. Binned mode is perhaps possible there, but i need to check first. ist pretty new and i only used it a few times. Dont worry, i do not forget the RC i think it will still need a longer time until i can buy a new one, because the WAF is a Little bit low today. waf? "womens acceptance factor" A the moment both are in the race. RC hast some Advantages, focal lenght, build (easier to handle with the focuser on the bottom), smaller, also a good point, theoretically no flattener neccesary, but i think in 80% of all cases i will use an reducer. The newton, f, Picture Quality, exposure time. but very long and focal lenght is smaller, and i want to use it mainly for small objects and galaxies. Yes really hard. The result always change. Both are available in truss design, i think also an advantage for mobile users. At the moment i prefer the short exposure time of the newton, one of my real most important points at the moment , but..... Well lets see what happen. At the end also an 150mm or better 160mm refractor is an option, but this really would hurt in my purche ;) oh yea, a TAk or TEC would be nice And i will check your photos tonight, was too late yesterday. Perhaps there i can find some nice RC Pictures . Cs Thilo |
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Hello together, I just started with astro-photography, but the weather in the "Mittelland" is as expected for winter. Fog for days and days... so unfortunately I only had one short chance to collect some photons. As a newbie, I still try to get used to my equipment, especially trying to get a proper polaris alignment. I own an unmodified Nikon D7100 with several lenses from 11 to 300 mm and just bought a used Orion SkyView Pro with tracking motors but without auto-guiding, which is supposed to be similar to an EQ-5 mount. Before that I tried taking pictures with very short exposure with an ordinary camera mount, but this was not very satisfactory. I am quite happy with the results of my first "real" session, but there is a lot to optimize and to practice. Greetings from Lausanne, Jan |
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Hello Jan Same here, the weather is really terrible (I'm from Derendingen, Solothurn)... since weeks... With your mount it would be worth to take time for accurate polar align. Then you can push your exposure time to a few minutes per image. It would surely make a difference. To your Orion picture: you have to check the color balance in a image editing app to remove the pink tint (Lightroom, Photoshop, PixInsight...) Greetings from Solothurn Karol |
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Hi Jan, Welcome here yeah the weather ;) Last weekend, if you move over 700m the weater was nice but cold. I agree with Karols statement, check the color balance, but for your first try, ist a really good result. But this photo, you still can enhance with a little processing in the software you use. In my opinion, this one of the nice things of our hobby. There are 2 impotant parts. Picture acquiring and then the processing at home. Both is really important to get get the result you want to achive, if you plan your session. My firts deepsky picture was also Orion, you can find it at the begin of my photo list. Well, i was and still are happy with the result, but your first try is even better than mine Polar alignment also made me a lot of trouble when i started. You can see this also in my photo list. Always when i failed correct polar alignement, when starting with Astrophotography, I choose the moon as target after a few frustrating hours ;) This works also manually.... Well go on... it used for me 3-4 sessions until i got it, but the learning curve going up very steep in the beginning. The next target for me after polar alignement worked, was the autoguiding. Here again I used a few night until i got it. but the result will enhance every night outside. Greeting from Basel Thilo |
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Grüezi again, first of all, thank you for your warm welcome! For sure, both of you are right... polar alignment is critical. I just had to hurry to get some shots in between the clouds, next time I will take more time for that. If there will be a next time, still sitting under fog. I chose M42 as a first object because with the millions of beautiful shots it is a worthy target to compare your result to others. I am currently playing around with Photoshop and also got the trial version of Pixinsight, I realize now that you spend at least the same time in front of your computer. Best wishes, Jan PS: I enjoyed your photos, amazing work! |
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Hoi Jan, ohhh first steps in PI.... <3 I also got the Trial version but after one night i stopped and used some "easier" software. But then i realised , that most of the people here use PI, so i made a second try. I took some raws, i already processed in Astroart, and processed them in PI according an Video tutorial i found. Already the first try enhanced my picture dramatically, so i started to use only Pi and photoshop. Check the difference. M81/82. I also tried to get a better result in Astroart, but failed. Today, i only use PI, because many features in PS only work with 16 bit, and you will see the difference in faint objects. But still have a lot to learn with PI, because you have so many possibility to process and enhance there, but makes a lot of fun to see how i get better and better If you have any questions or problems , just ask here ;) @Karol Hey, must be really bad wheater on your location, so you have a lot of time to preprocess "old" Pictures CS Thilo |
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Yes, the weather is terrible. Last weekend looked good but I was bound at home because I had 7x24h on-call service (my job...) so I tried my luck with M101 at home. And I reprocessed some images (Rosette Nebula, Orion Nebula) because I processed it to much before. The images looks much better if they are softer. But finally its a taste thing. @Jan: I also realized very fast, that the image processing after shooting would take at least the same time like the shooting itself. The image processing is a very important part of the whole process. And I'm with Thilo, it is worth to take you time to learn PixInsight. I was very surprised as I reprocessed M45 Pleiades with it: DeepSkyStacker/Photoshop/Lightroom:  PixInsight/Lightroom:  CS, Karol |
