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Some summer NV videos to share....

DIY EAA NV
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#1 Lambda

Lambda

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Posted 14 August 2019 - 04:57 AM

Hello. smile.gif

 

I wanted to share with you small humble video results obtained with two DIY configurations, said results coming from a small "summer star crop" made in the South-West of France during holidays, ...

 

The first setup is the following one:

 

Objective: F=90 mm, F/D=1, brand "De Oude Delft"

Tube: Old marked with ghost image MX10160, but still brave smile.gif

Camera: Sony DSCHX1 coupled to the tube with afocal/relay lens system (one achromat f=80 mm. f/d=2 in front of the built-in Sony's zoom objective)

 

For more details, see here:

http://www.astronomi....php?f=11&t=326

and

https://www.youtube....h?v=xKm75PWsNiw

 

 

The second setup is the following one:

 

Objective: F=50 mm, F/D=0.75, brand "Litton"

Tube: venerable P8079HP

camera: Sony DSCHX1 directly coupled to the tube's screen in simple macro mode.

 

For more details, see here:

https://www.cloudyni...8079hp-project/

 

And here are the bunch of videos, both made without using any narrow band filter on both tube:

 

with the MX10160

 

 

M8 and surrounding

https://youtu.be/w2reeAywinQ

 

M51

https://youtu.be/cn1IWO4Tr2w

 

M31 and surrounding

https://youtu.be/FT1NNCFK2E0

https://youtu.be/o-Fw9_yB_z0

 

again M31 with double cluster in Perseus

https://www.youtube....h?v=tFk3gwMM2o4

 

Sagittarius area...

https://www.youtube....h?v=VuWeteUQ2a8

 

NGC7000

https://youtu.be/kkYaoTmTjnQ

 

A bit of P8079HP

 

NGC7000

https://www.youtube....h?v=KjrksolR1bM

 

M13 and surrounding

https://youtu.be/abZ6A2Kb-Ig

 

Milky way promenade

https://www.youtube....h?v=KjrksolR1bM

 

https://www.youtube....h?v=xxrPSzw-5Ps

 

https://www.youtube....h?v=MWjGJjqAFG8

 

One of these sessions was made with Joko and his Dobson+ nv system, great session with a lot of fun and discovery with his configuration and explanations....

 

Again, nothing extraordinary according the standard here, but always bringing a lot of fun and learning process.... :)

 

Clear skies.

 

Lambda


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#2 GeezerGazer

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Posted 14 August 2019 - 10:26 PM

Nice job Lambda. 



#3 Lambda

Lambda

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Posted 15 August 2019 - 06:20 AM

Thank you GeezerGazer! smile.gif

 

I am in a permanent learning curve, in this domain, and like a child in front of a Pandora box... smile.gif

Plenty of possibilities to explore with NV!

 

What I would like to do is to combine with a proper gen 3 a high resolution "video" camera and making some integration in real time, like for instance 4X1/25 sec, with substracting for each resulting integrated frame a master dark.... in a compact and "portable" setup:

 

Nothing really new in the EEA world, far away, but could be interesting to test it when combined with NV tech, for obtaining an increased SNR for real time video....

 

The final idea is not to "simply use" the camera for witnessing observations, but really to enhance/magnify the capabilities of an observer on the field: observer+ nv device (with standard eyepiece) VS observer + camera (on screen) + nv device (with relay lens)

 

I did this kind of experiment with an other P8079HP and my old WATEC 120n+ (already mentioned in previous posts...), using a slow Mak (f/d=7 for f=700 mm). The principle works, but I am lacking of resolution: acceptable results for terrestrial monitoring, but poor results for astronomical applications...

 

Here a recent terrestrial test with this very "vintage" configuration:

https://www.youtube....h?v=nIhCrnUrBHk

 

And the last status of the current "prototype": changing CCTV lens for minimizing vignetting and increasing a bit the sampling, including a video analog/digital converter (sooo much more convenient for sharing here or elsewhere....)

 

4.jpg

5 - Copy.jpg

thumbnail.jpg

 

And a "family photo"...

13 copy.jpg

 

Again sorry... not so much astronomical videos/EEA results to show, more "workshop activity"... bigblush.gif

 

Clear skies.

 

Lambda


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