Kitsunegari

for these particular captures i was using the IMX287 basler camera,   

The .ser files were set to 10,000 frame captures.  7GB each file.  captures were set to 10 second intervals.

attached is the data.txt for the capture.      

33 minutes ago, Ibbo! said:

Which camera are you using - some are more prone to NR's than others.

Try cutting back to 20 to 50 frames for flats I have very mixed results using flats.

Cut down the AVI or SER capture to 30 to 45 secs and stack less frames., I use between 51 and 350 for a stack.

For time lapse I have done 10/15 secs capture every 1-2 min using a stack of 50 frames in the past but it did involve some tweaking to line up to produce the final result.

I have a tilter in place for NR but remember every tweak you make tends to alter something else.

Thanks for the advice Ibbo:  i will attempt using capturing a cascade of flats next session, at 10 frame increments up to 1000.

Mars_161133.txt

52 minutes ago, Star101 said:

I dont think its flats causing the issue. 

Have you tried without flats?

 

yea,   the newton rings are throwing back alot of errors during stacking with autostakkert.    In my full disc shots the limb is totally void like it cannot align.  In the above sample you can see the lower right of the image lost all its detail as well.

My 2x barlow has less newton rings;  but they are still slightly visible.   i used registax on this barlowed shot because i didnt want to waste another couple hours on AS3! again.   The flat does no good in registax either.

I wish i could use registax for everything here, but there is no automation process like AS.       There is a batch setting, but i dont think its any good for stacking stuff.   

My main focus is time-lapsing, and now im losing hours to errors on what is otherwise very detailed data.   I guess ill just take the suckers way out and get the camera tilter.

Hey look, the double solar limb truly is eliminated with this new blocking filter.      

pst etalon + 1 angstrom Apollo Lasky blocking filter.

1 hour ago, Star101 said:

flats are measured in ADU's else by taking a Flat and watching the spike on the Histogram is only 1/3 from the left. i.e ].....iIi..........[   If that makes sense!

 

well i will have to try making sense of it, or else i need to fork over some money to the camera tilter.;   these software issues are pretty annoying.  Now i am getting errors in autostakkert thats cutting off half my image!

I have some great data and autostakkert is being stubborn with it.

So my flats effectively are not functioning properly in any program i use.  What could i be doing wrong?

The flats are 10,000 frames , the image is 3000.

test2.tif 0001.bmp

Good news!  The 1 angstrom blocking filter testing has begun.  Although I have some sag in my new extensions that is visible in the bottom portion  my second image,  the first light is clearly superior to the standard coronado blocking filter.

This was a short session to get everything in order, i was bombarded by 40mph gusts and lots of clouds.

I used this visually and the filaprom was simply stunning, the contrast over the limb was awesome.      I will have more testing done as soon as i can but my first impression is probably the best it can be. This filter is superior to my 5mm coronado blocking filter and 15mm blocking filter.;   

I do not own a lunt blocking filter,  but i have no reason to beleive their 8 angstrom filter will outperform this along the limb.    I will post a direct comparison to the coronado blockers as soon as i can.  I will also try this with a couple different etalons.  Particularly an SMII 40mm and lunt ls50c.

   I have to purchase some better extensions to get the slop out of my full disc, and probably the camera tilter to eliminate the newton rings;  However this optic is a winner right out of the box.  I am very anxious to image at high magnification.

IF anybody knows how to fix my flats problem with autostakkert, i am all ears!  I have tried 10,000 frames with a translucent grocery bag but this still has not removed my dust spots.  I believe they are on the imx174 camera sensor and i do not really want to risk damaging it by wiping it down.

127mm x 1200mm telescope + pst etalon + 10mm x 10mm  1 angstrom blocking filter supplied and mounted by Apollo Lasky

First image is from the 600fps sony imx287 sensor    https://www.baslerweb.com/en/products/cameras/area-scan-cameras/ace/aca720-520um/

second image is from the 160fps sony imx 174 sensor.  https://www.baslerweb.com/en/products/cameras/area-scan-cameras/ace/aca1920-155um/

I tested something different today, it  did not turn out as expected but still proceeded to capture because activity was there.    

Still cannot get my flat fields to process correctly for some reason

after something like 10 hours of waiting on autostakkert, there  are now 57 frames    (the surface detailed version is a work in progress, i am getting lots of noise on the backround from my failed image flat)

This display is very nice  for "solar minimum";  There is clear motion/activity and "puffs" across the entire limb now.     

57videos at 7000 frames each   ;     2000 frame stacks.      Total capture time of just 1 hour.

If anyone has any suggestions for my next sunny day, i am open to apply your thoughts!

okay i have to redo this,  this flat ruined my raw!  Sorry guys, ill try again.

raw 2 of 50

eww this flat is no good i need to rebuild it!

everybody has a different style of processing,  give it your best shot and share it here!

127mm x 1200mm + pst etalon + 15mm blocking filter  +  basler 1920-155um

1500 frames out of 7000

looks like you caught the "Tadpoles"

https://www.space.com/solar-tadpoles-discovered.html

love it

here are the raw unprocessed files aligned if anyone wants to try modifying this.

Mars_125940_g4_ap1127_aligned_aligned_out.zip

added a second process to this , i like this setting ;  but i think the  imppg gamma setting is blanking out the edge of disk with over exposed saturation and i cant figure out how to prevent it.   

any body have any ideas to get that over saturated edge out of there, so its nice and clean?

full disc gamma 1920 third partc.xml

127mm x 1200mm achromat = 15mm coronado blocking filter = basler 1920-155um camera 

Forty, 5000 frame video captures, 10 second interval delay.     1000 frames stacked per capture.   processed with two passes on imppg.   .XML files attached.  (next time i will take extra time to process an image flat)

6 hours of automatic batch file processing in autostakkert. (1920x1080 original .ser  @ 16bit x 22gb each)  (quad core 2.2gz intel i5 with 16gb ram / windows 10)

share link on flickr (https://live.staticflickr.com/65535/49958192892_9afd08a1a7_o.gif)

share link on astrobin (https://cdn.astrobin.com/images/53858/2020/11e8b708-705c-4a9a-9cf7-bb98d0337e76.gif)

full disc gamma 1920.xml full disc gamma 1920 second part.xml

i love prom animations, they are always spectacular.  Great processing 

I fixed the first image up a bit.   I tend to be lazy with my processing;  I usually do not stick to one set method and just wing it.  But now i have a good imppg filter.xml saved for this particular etalon setup so i should get some great consistency.

I have attached the xml file if anyone wishes to borrow it.    *sorry about the dust bunny, i tried to blow them off today but i guess i missed one, it may be between my etalon plates*

full disc gamma 1920.xml

nice!    I plan to setup my high mag soon,    full disk is simple fun but seeing stuff like this always provides a sophisticated wow!

Excellent capture and processing.

125mm x 1200mm + Coronado pst etalon / 15mm blocking filter = Basler 1920-155um

Just a guess but maybe the mac handles the global shutter a bit slowly with camera refresh rate and data capture rate? 

IF monoP  stands for "progressive", then this could relate to image flicker and scan line writing.    Back in the early days of hdtv's , interlacing was a big problem where the image was made of individual odd/even lines that refreshed a bit slow so you could see them visually.   Then progressive scan came out, but the rate of refresh took a while to catch up with it and special hardware had to be adapted to allow quicker image processing .     (most nvidia cards have no problems reproducing the video and all the video encoders are built into the windows devices by default)      Mac's are a bit slow on industrial standards, and are typically proprietory based so they have issues with 3rd party software development that doesnt pay for some patent or trademark support. 

https://en.wikipedia.org/wiki/Progressive_scan

Not sure on the video writing / handling of mac, but i know there are tiny bugs like this in reference to how the images are refreshed on the screen in apple products compared to microsoft products.  Basler pylon is not exactly an industry standard program that apple would be looking at for compatibility.  You may have to rummage through the "pylon guru" settings for an interlace button, or rate of refresh button.

for starters you need a "c-mount to 1.25' nosepiece"  attached to the dmk camera.

https://www.amazon.com/1-25-nosepiece-mount-adapter-FAP201/dp/B01HQR5NUG

Secondly, you need to pull out the lunt b600 diagonal outward about 1cm and lock it there with the thumbscrew.

Thirdly adjust the camera height while watching the screen, you should see the solar image become sharper as you pull the camera out.     You will noticeably see the solar image getting larger and dimmer if you go out too far away from focus.

The image will get brighter as you get closer to the focus.     Make sure your exposure level is at about 5ms and the gain is set to 0( or at least below 3).    if you are using too much exposure time/gain, the image refresh rate will be too long, and the over saturated image will always be blurry.  It will look like a solid white blob if your exposure is too long.

I hope this helps,  you may not need the barlow,;  i am fairly confident you just pull out the blocking filter a bit.     (i do not recall the ls35 having a focuser on it and it relied on the thumbscrew only)

Small scale over exposure timelapse of the nice prom.

I am thankful to be a tester on a new prototype blocking filters. 

1-angstrom bandpass with a single cavity design, OD4 blocked Xray to FIR.    Going to be a fun summer if the rain ever stops!

The end goal is to eliminate/reduce the "double limb" and function as a cheater double stack system for imagers.    Typical blocking filters are 8 to 10 angstroms, so there should be an immediate difference on the first light while using this.

Its good to know there are still people in the world that are willing to stray away from the herd; and take a chance experimenting with new things, 

For comparison, here is a scan of a 3 angstrom filter, that is not single cavity.   The difference is immediately obvious.

There is considerable transmission loss on the out of band portion, 

both graphs overlapped are a great representation to the elimination of excess/unwanted bandpass .