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I like live stacking as I can see the image develop and it saved my hard drive being cluttered up with thousands of images.
The downside, I have found is that if a cheeky wisp of cloud comes over, it often gets included (in spite of trying to clamp down the FWHM settings). Some of my images then have a like a grey smear over them.
Then after and hour of live stacking I find it looks just like a greasy smear over the picture- which is a real pain to try and post process out.
Always seems to happen when I pop indoors to make a drink etc.
I noticed that there was a setting on SharpCap. to save the stack- save and reset. Which I have not used yet.
So Im thinking maybe I should do shorter live stacks eg. 30s for 5-10 minutes and then stack the results in A!S or DSS, so I can weed out the poorest sets, and I least I get something.
Gives me a chance to do any slight re-adjustment too.
Is a stack of stacks the same as doing a longer stack?
My rusty school maths says it should be - but thought I'd see if anyone else does this.
(I guess the setting wouldn't be there otherwise)
Hi is anyone using Regim to stack using a dslr modded , currently trying to work out the settings in regim , im using a modified canon 1000D , do i need to set up libraw within regim ? if anyone has good success in using regim i would be interested in hearing what settings you are using .
By R26 oldtimer
This is probably silly, but anyway here it goes....
What would happen if say someone intended to shoot 100 of 60sec subs of orion nebula or Andromeda, and clouds rolled in the middle of the session or just got bored and stopped for a hot beverage.
Now this poor fellow is left with only 50 subs and starts thinking of copying and renaming these 50 subs in the same folder (unaltered or with slight denoise or slight Gaussian blur) and stacking all of the 100 subs?
We were lucky enough to spend two weeks over Xmas and New Year on La Palma with the family. It was my first visit to the island and loved the place. First week we stayed at the Northwest (Puntagorda), that coincided with full moon, so did not do much imaging wise. However, a very memorable moment was when stepping outside between the main curse and dessert of Xmas eve dinner and within 5 seconds of looking up, I saw a large fireball meteor sweeping accross the sky and breaking up into several pieces.
Second week we stayed about 10mins drive from Santa Cruz, so was worried about light pollution from the capital, but the first night it become obvious that the sky was still one of the best I've ever seen. The small light pollution is in the form of sodium lights, so can be dealt with by filters (apart from some flashing LED xmas lights around).
The equipment I took was a Fuji X-T1, modded Canon 6D, Samyang 135mm and 35mm lenses, and Fornax lightrack II. Unfortunately, at the end I couldn't use the Canon as I found out there that its remote release connector is different, I use a Canon compatible intervallometer for the Fuji, and just assumed it was the same for the 6D. At home I've been using the 6D with the laptop, which I did not take with me to minimise the amount of kit. Learnt the hard way that everything needs to be tested before the trip and assume nothing. Anyway, I was enjoying using the X-T1 / 135mm combo on the Fornax, it was very quick to set up and worked very well. Fast lens meant that max exposure I needed was 2mins, which the fornax coped with easily.
We visited the GTC and was hoping to see one of the other telescopes, but I've messed up the booking and bought tickets for the GTC twice, so that will have to be another time.
Also drove up to the observatories in the evening and was hoping to do some imaging, I unpacked the equipment, but was so cold with strong winds (at some point I had 3 jackets on) that I basically bailed and just did some very wide field shots. The fun bit was when we got too cold and was ready to go down, the car wouldn't start. ? It was around 10pm, nobody around, no moon, so pitch dark. I'm still not sure why the car battery went flat, I run the Fornax off the cigarette lighter socket, but its power consumption could not be the reason. To have voltage in the cigarette lighter, the key had to be turned to ignition on, so I guess in that state something was taking current in the car, we did not have any interior / exterior lights on. We thought we might have to sleep in the car, when after about 20mins I saw a car driving down, jumped in front to ask for help, and the chinese couple inside very kindly helped to push the car to jump start it. This was a major struggle as the parking platform was lower than the road, so the car had to be pushed up the ramp. When the car eventually started I was ready to hug those friendly people but they were in a hurry...
The sunset and the views of the milky way were amazing up there, still I've decided after this adventure that I rather put up with the little light pullution I have on the balkony of the nice warm house and my bed nearby.
So, overall a few mishaps, but it just means that I definitely have to go back again in the summer, timed so that it coincides with new moon.
Anyway below are some of the quickly processed images I took, also have some 46P data but haven't managed to process that to give anything decent yet. All processed in Astroart / Gimp, however my processing skills are not very advanced, still need to learn about layers, masking, etc.
So here's a thing - it seems to me that astronomy is one of those not very straight forward hobbies.
Last night I though it would just be the same as Friday night - set up, look at the moon take some pictures! Simples...
Aw but not to be!! I'm good at setting up in the daylight, get my mount bang level (checked with electronic level app on phone...) Get it facing north with my beautiful brass compass and enter coordinates back to Kidderminster from Thame, then you would think just observe...
Nah! Moon very wobbly with tinges of green on the edges... Barlowed it and got some superb views of Gassendi and the Hippalus Rilles albeit a bit wobbly... Then the tree came so I thought check out Jupiter the other side of the tree with the camera. Once again folks it appears I have a great deal of Astro luck! Couldn't find Jupes at first, camera in and out of diagonal, EP in and out of diagonal... Shall I just go to bed?
Then just before my capitulation - Boom she appears as a large white circle! Mmm something to work on I thought... Messed with the Gain and Exposure, what's Gain mean? Now it's a smaller white ball no moons... Then after another stop and start - Boom!! a ball with bands on... Hello Jupiter my old friend I whisper like a sniper lining up a kill!
Brainwave, blue filter! in she goes and Boom again deffo a Jupiter view (although very wobbly) Quick action - click the 'take a picture or million' button... Next quick, take a video or million button.
Amazing here I am with a table chair laptop wonderful AVX mount and my Starwave 102 doing EAA....
It's not that clear and it looks like a black spot just above the main band... Er it couldn't be could it? Could it be? Not another transit surely.... Run indoors get the phone check my Jupiter moons app and Bingo is Io, only Io transiting Jupiter... Wonderful how lucky am I?
I call my girlfriend down out of bed, look look she's sat at the table looking and and "can you get the image any sharper? Oh that's funny I thought the band's go horizontally".. a quick turn of the camera in the diagonal and she's happy! Flipping heck is it me how can she not be doing the I've just bagged a great target dance??
Amazing, another example for me of when things don't go perfect at the beginning, decide it's better to just give up and then a little while later having a wonderful moment.
This hobby never lets me down!
So today the result of all that is I have a million pictures (exaggerate a bit there) and not a clue what do so with em apart from maybe trying something I heard of called deep sky stacker... Should be interesting later.
What a fun night in the end... never give up hang in there the joys are just a moment away.....