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Old Scopes and Modern Imaging

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#301 TerryWood

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Posted 28 February 2019 - 07:12 PM

Thanks JW, and everybody, for the likes! I really appreciate the encouragement and putting things in perspective. I tried some film astrophotography a long, long time ago, all pretty basic stuff. The wait to get the pictures developed, then to find out that only a couple were worth saving....yeah, today's cameras and processing technology sure makes it a lot more fun to me. Plus the instant gratification spurs me on to keep trying to improve. Thanks again! V/R Terry
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#302 TerryWood

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Posted 12 March 2019 - 03:29 AM

I stayed up late in hopes of clear skies and the Moon setting so I could attempt some deep sky with the Tele Vue Genesis (non-sdf) and Sony A7S camera. Well, lots of passing clouds showed up which made it a real challenge. The only part of the sky half way decent was near the Big Dipper. So, I tried for M51 Whirlpool Galaxy. I could only manage 30 captures shooting at ISO 6400 at 25 seconds each. Some still had clouds in it. Anyway, this is what I came up with. It is heavily cropped so not as crisp as I would like. But, still nice to get capture something tonight. Another hiccup was with the GP DX mount. The gears started making lots of clicking noises and weren't engaging all the time. Not sure what's going on with it. Final image cropped and downsized, then converted to jpg for posting. Still pretty blurry.

 

V/R

 

Terry

Attached Thumbnails

  • wp tvg cn2 jpg.jpg

Edited by TerryWood, 12 March 2019 - 03:30 AM.

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#303 shredder1656

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Posted 12 March 2019 - 04:10 AM

I stayed up late in hopes of clear skies and the Moon setting so I could attempt some deep sky with the Tele Vue Genesis (non-sdf) and Sony A7S camera. Well, lots of passing clouds showed up which made it a real challenge. The only part of the sky half way decent was near the Big Dipper. So, I tried for M51 Whirlpool Galaxy. I could only manage 30 captures shooting at ISO 6400 at 25 seconds each. Some still had clouds in it. Anyway, this is what I came up with. It is heavily cropped so not as crisp as I would like. But, still nice to get capture something tonight. Another hiccup was with the GP DX mount. The gears started making lots of clicking noises and weren't engaging all the time. Not sure what's going on with it. Final image cropped and downsized, then converted to jpg for posting. Still pretty blurry.

 

V/R

 

Terry

Wow!  That is beautiful!


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#304 TerryWood

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Posted 12 March 2019 - 08:37 AM

Thanks a lot! wouldn't you know but it cleared up later. By then it was just too cold and windy to stay out for long. Might try again tonight after midnight. The motors on the mount are giving me real problems, so I may have to go to plan B. V/R Terry

#305 DreamWeaver

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Posted 12 March 2019 - 11:01 AM

Nice shot for 25 second subs!


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#306 Thomas77

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Posted 22 March 2019 - 10:55 PM

I was looking for my first telescope, but i'm in college right now and didn't have too much money too spend. While I was looking around I found a Pentax 85 for $400 a few months ago for the scope and mount. I used it for just looking around the sky for a couple months then I thought it would be cool if i could make it track. I got lucky and found the original Ra motor and picked up an astrophysics dual axis drive corrector with the auto guider. A few days ago the sky cleared up and I took everything outside and took some pictures of the Orion nebula and the moon. The motor seemed be a bit fast so for Orion I was only able to do 25 sec exposures before the stars looked too blurry an then stacked about 40 in deep sky stacker. Its not great but its better than with my 50mm lens on a regular tripod. Hopefully if the auto guider still works i'll be able to get longer exposures. For the moon I think I stacked 30 exposures in AutoStakkert. This image of the moon is better than the first time I took it.

Orion nebula with Pentax 85
Moon with Pentax 85

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#307 Compressorguy

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Posted 24 March 2019 - 10:10 AM

Image from my 2011 post with a Unitron 150 with early style ALT/AZ mount and hand held camera. Very challenging!!!

 

2011 Post

“I went a different route with the video capture this evening. In the spirit of Jason H, I captured the video with a little Nikon S220 10Meg point and shoot camera in video mode, hand held over a Meade 6.7 UWA eyepiece. I was able to capture about 600 frames before Jupiter drifted out of view. Registax did not like the AVI codec so I went on line and found a neat little program called Virtualdub which converted the Nikon video to a bitmap. I then imported it into Registax and Viola! This may work for other point and shoots as well. Now the only problem is that the little point and shoot does not give you alot of manual control of gain, saturation, gamma etc, but I think the image turned out OK considering the capture method. Not to mention, the seeing was not very good as we have a front approaching. Anyway, it was very challenging and alot of fun.

Got this through some holes in the clouds:”

 

E5D96700-5DB4-461C-AB7C-ED3E45D1F62F.jpeg

 

another image, same method iirc

 

64B0222A-50AB-4673-919C-0C89B70265B0.jpeg

 

 

 

 

 

 

 

 


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#308 Bomber Bob

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Posted 24 March 2019 - 01:41 PM

Great Scott!  [sorry - couldn't resist!]   Seriously, those are great shots with a hand-held.  My hand isn't steady enough for it -- the results are a blurry mess.

 

I don't think I did any imaging with that Unitron 152, but I did get Jupiter & the GRS with the Model 142:

 

Unitron 142 - Jupiter (GRS) 20180607V05A64R51.jpg

 

Not too shabby for a 1950s 3" F15 achromatic.


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#309 TerryWood

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Posted 31 March 2019 - 12:18 AM

Wow, the images above are all pretty amazing! Inspired me to get out there tonight. The weather did not call for any clearing, but looking at the radar showed there was a clear space before the rain moved in. The wind was gusting over 20 mph and I don't have much to block it since I live on a ridge top. I really didn't think the scope and mount would be able to handle that, but I wanted to try anyway. The scope was a TeleVue Genesis (non-sdf) on a Great Polaris DX mount. Camera was a Sony A7S shooting at ISO 6400 for 38 frames at 25 seconds each. That was the most I could get before clouds took over. 

 

I went a little overboard on the labels...

 

This still looks a little fuzzy because I had to crop it heavily to zoom in. Processed in DSS, Lightroom and Gimp, then downsized and converted to jpeg for posting. 

 

I appreciate you having a look!

 

V/R

 

Terry

Attached Thumbnails

  • TV Genesis Mar 31 2019 jpg.jpg

Edited by TerryWood, 31 March 2019 - 12:31 AM.

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#310 Bomber Bob

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Posted 11 May 2019 - 09:14 PM

I gave my Swift 838 to our youngest grandson.  Here's a raw image from that remarkable little scope:

 

S838MOON20170402V06_g5_ap15.png

 

(It's all sturm und drang tonight, so I'm going through all my astro-imaging folders.)


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#311 Bomber Bob

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Posted 11 May 2019 - 09:22 PM

Tried to capture the Moon occulting Aldebaran with the Dakin 4:

 

DAK4OCC20170305V02_g5_ap15_conv.jpg

 

 


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#312 Bomber Bob

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Posted 11 May 2019 - 09:30 PM

Capturing & Removing false color from images made with my Edmund 4" F15:

 

Edmund 4 - Moon 20170707V01AR01.jpg Edmund 4 - Moon 20170707V01AR13.jpg

 

It's almost always in the brightest parts of crater rims, and often the peaks / ridges at (or poking above) the terminator.


Edited by Bomber Bob, 11 May 2019 - 09:32 PM.

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#313 Van Do9:3

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Posted 12 May 2019 - 12:35 AM

JW, beautiful lunar images. Have you tried imaging the lunar wall, or Rupes Recta? Visually good around 1st and 3rd quarter moon.


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#314 Bomber Bob

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Posted 12 May 2019 - 09:51 AM

Thanks!  Yes, after years of digital imaging, I've captured The Wall.  The problem?  I didn't label most images with a highlighted feature, so finding an example...  would be tough!


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#315 TerryWood

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Posted 12 May 2019 - 10:32 AM

I really like those rays and the occultation! Nice images!

 

I wasn't going to post these, but thought "oh, why not." 

 

Here are a few from May 7th of Jupiter, Saturn, and the Sun using my TeleVue Genesis (non-sdf), B&L 6000 (Dynamax 6), and pre-Meade Coronado 60. The seeing was looking steady at the very beginning of imaging but quickly went downhill, so the final images did not come out nearly as good as I had hoped. The h-alpha image has a big dust bunny in the lower right corner that I did not remove because I'm lazy today.

 

V/R

 

Terry

Attached Thumbnails

  • J1 TVG LR jpg.jpg
  • 05_04_02_g4_ap26 SATURN TVG jpg.jpg
  • 03_42_53_g4_ap25 Registax 1 Jupiter D6 jpg.jpg
  • 07_26_32_g4_ap1372 S2 Coronado 60 jpg.jpg

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#316 Dartguy

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Posted 01 July 2019 - 02:43 PM

I had some decent skies for once, this weekend, and tried a few attempts at Jupiter.  No idea why it turned out in black and white, no idea why it took over 30 minutes to find the dang planet in the camera, and no idea how I had the patience to keep at it for that long.  But here is the weak attempt.

Jup 10

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#317 Peter_D

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Posted 05 July 2019 - 04:31 AM

Some really inspiring photos on here!

A couple of nights ago, used my r114m, Huawei P9, 25mm Ortho and a Barlow x5 to take a short video of Jupiter. The heat and Jupiter's low elevation  ensured conditions were not the best.

 

Was only able to get a short video but used PIPP to convert the mp4 to avi and then used Registax 6.

Baby steps I know but an improvement on my last attempt. 

Attached Thumbnails

  • IMG_20190705_112835.jpg

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#318 Peter_D

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Posted 05 August 2019 - 05:20 AM

Hi,

 

Last Saturday evening, I observed Jupiter in the evening twilight. I used a Vixen r114m and Huawei P9 smartphone to take a short video.

 

Sorry for the size and quality but interesting that I captured Europa transiting (21:57 CET). Europa is just visible as a white speck on the Jovian limb just past 6 o'clock and its shadow is at 3 o'clock. I wasn't sure what moon it was so used the app Moons of Jupiter to confirm.

 

Seeing was still poor but comparatively better than recent weeks.

 

Clear skies

Peter

Attached Thumbnails

  • IMG_20190804_133837.jpg

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#319 Kokatha man

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Posted 07 January 2020 - 08:51 PM

Resuscitating this old, long-running thread! lol.gif

 

Last night, determined to use modern 1.25" ep's on my little Pentax 50mm f12 I used the approach of sliding the 1.25" chrome barrels over the outside of the Pentax' 0.965" focuser tube...

 

My recent thread, particularly my lucky outcome in attempting to unscrew the prism without removing the almost invisible, tiny locking grubscrew makes things very difficult - my 0.965" to 1.25" unit just adds too much to the imaging train's length & I then don't get enough in-focus adjustment. frown.gif

 

I'm a little bemused by the pamphlet that came with the scope ("manual" would be far too grand a word to use for it! lol.gif ) where it states <"equipped with rotary diagonal prism for easy astronomical observations.">

 

Now I appreciate that you "could" loosen the grubscrew & re-position the angle of said prism but that certainly isn't "easy" & in fact I abhor that type of locking device because regardless, these grubscrews invariably damage the fine threads they act upon, regardless - they are something a factory installs & should then be never touched except in exceptional circumstances imho! frown.gif

 

But regardless, slipping the 1.25" ep's over the output tube worked & I even thought there was a slighter better "sweet spot" attainment via the focuser for these larger ep's...although I have no idea why that should be! confused1.gif

 

The fact that they tended to slip slightly over the rounded part of the prism casting lip where the 0.965" barrel screwed into the prism helped a bit in keeping the larger ep's stable but there is no doubt that are more secure fit would benefit their use on the little Pentax. wink.gif

 

To that end I will have to make a small sleeve to go onto the outside of the 0.965" focuser output sleeve, although if I play around tonight I might employ an appropriate-sized rubber O-ring as a first port of call to take up the slop... wink.gif

 

Trying to hold the iphone steady over the ep without knocking the delicate balance I had with these ep's last night was very difficult, especially with the gusting winds that were quite severe! frown.gif

 

Also, I still haven't delved too deep into the more arcane mysteries of converting .mov files from my phone into ones that AS!3 will accept - specifically using PIPP & those shorter f/l ep's where only part of the Lunar disk is visible on the phone screen...

 

I know that with some modifications & more experience with PIPP that iphone pikkies of the Moon through this little Pentax using standard 1.25" ep's can be much, much better - but for now here are 3 images reduced down in scale to 90% or 67% of their full scaling, ie roughly 61% of full scale to fit within CN guidelines.

 

Hopefully with some little mods & more experience I can produce better outcomes...but I do find these attempts strangely challenging & interesting, especially as a diversion from hi-res planetary imaging while the planets pUll themselves together in the New Year..! lol.gif

 

Clockwise bottom left to right a generic 9mm Plossl...a Celestron 40mm E-lux & a 20mm Erfle: not the best processing either but the last few days have been a bit of a strain.

 

Image will need clicking on btw... wink.gif

 

Clockwise9mmPlossl_20mmErfle_40mmElux@90%of67%.png

 


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#320 Kokatha man

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Posted 08 January 2020 - 07:32 PM

...more of (somewhat!) the same! lol.gif

 

The Moon 24 hours fuller using the 15mm Plossl 1.25" ep...but this time with the "hi-tech" modification of wrapping several layers of masking tape around the outside of the Pentax 50mm's 0.965" focuser tube & slipping the ep over this for a firmer hold than the night before. wink.gif

 

My time spent creating an adaptor for using the ZWO camera was wasted - I still couldn't get enough in-focus so again I reverted to the "hi-tech" solution - tonight will tell if it's clear...all anyone needs in this world is a roll of good tape! lol.gif

 

Perhaps make that several rolls: duct tape, masking tape & my most recent acquisition for something completely different, "Tommy tape" silicon wrap-tape which surprises me in that in can handle temperatures up to around 260C..! 

 

Pretty confident we'll soon see what using a dedicated planetary camera will show with the little 50mm Pentax, even on its' table top tripod - but maybe not tonight by the look of the forecast. frown.gif

 

Anyway, here's Mk2 with a 1.25" ep held more secure with masking tape: not too crook seeing that a branch of our pear tree was waving across the Moon constantly for the 14 second video take. lol.gif

 

Image will probably need clicking on 'cos I've left the background large which I think suits these sorts of shots. (Moon 75% of actual capture scale btw)

 

AS_1.5xDrizPlossl15mm-HP@75%.png

 

 


Edited by Kokatha man, 08 January 2020 - 07:43 PM.

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#321 Bomber Bob

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Posted 18 March 2020 - 07:17 PM

Good Golly Miss Molly!  Just realized that my Post #311 is incomplete.  I meant to show the Aldebaran Occultation with my Dakin 4" F10 refractor:

 

Dakin 4 - Aldebaran Occultation 20170305V02F527.jpg Dakin 4 - Aldebaran Occultation 20170305V03F700.jpg Dakin 4 - Aldebaran Occultation 20170305V03F701.jpg

 

IIRC, I tried to get the lunar limb to show, but that washed-out the star.  (This was a month before my heart surgery, so I do have an excuse for my senility -- this time.)


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#322 clamchip

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Posted 16 May 2020 - 10:43 PM

I'm going to give astrophotography a try with my Cave 10 inch Cassegrain.

After looking at webcams, dedicated astro cameras, etc. I settled on a vintage

Nikon D70 DSLR.

From what I've been reading this will be a fine astro camera, with it's manual 

settings and a CCD sensor.

Talk about a fish out of water, that's me, I'm gasping for air, I don't need this.

But I want to do it.

 

Robert 


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#323 clamchip

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Posted 17 May 2020 - 08:21 PM

I picked up my camera today.

I found out why it was only $60, it had 'sticky grip' the rubber grip is decomposing and

a sticky mess.

I went on line and to clean it up use 91% iso alcohol.

It cleaned up fine and I have a Nikon T-ring so I can adapt the camera to any telescope.

I do want to use it with my Cave 10 inch DK cass and also I have a bunch of C8 photo

accessories, I might try a orange C8 first.

Before I do any astro work I'm going to familiarize myself with the camera.

It doesn't have many miles on it, if you have a DSLR you can go here and get a shutter

count,

https://www.camerashuttercount.com/

mine has 2374 shutter actuations.

 

Robert


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#324 jgraham

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Posted 18 May 2020 - 05:02 PM

1980 Meade 2080 LX configured for imaging. Note the interval timer resting on top of the tripod and the power cord for clock drive....

 

LX 2080 (2-20-2020)-3.jpg

 

 


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#325 jgraham

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Posted 18 May 2020 - 05:03 PM

M42 & 43 – The Great Nebula in Orion – Vintage 2080 LX
Telescope: Meade 2080 LX @ f/6.3
Camera: Full-spectrum Modified Canon 600D (Rebel T3i)
Filter: Highpoint Scientific IR Blocking FIlter
Guide scope: None
Exposure: 27x10sec, ISO 1600, Saved as RAW
Darks: Internal (Long Exposure Noise Reduction On)
Flats: Synthetic
Average Light Pollution: Red zone, Bortle 8, poor transparency
Lensed Sky Quality Meter: 18.4 mag/arc-sec^2
Stacking: Mean with a 2-sigma clip.
White Balance: Nebulosity Automatic
Software: Nebulosity, Deep Sky Stacker, Photoshop

 

M42 (2-20-2020)-3j.jpg

 

 


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