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17 sec (x1024) Camera Sony 960h Exview HAD CCD2

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#376 GlennLeDrew

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Posted 08 December 2012 - 12:29 AM

The only real thing of note I see going for this camera is the low price. It's fine for getting a feel for video imaging, if one is uncertain about taking a deeper plunge. If example images shown here so far are a reliable guide, it's limited to brighter targets and/or colder operating conditions. If performance 'out of the box' is lacking and requires tinkering, then it's a tweaker's project to me. Or an as-is, low-cost learning tool (for the deep sky; probably just fine for solar system work.)

#377 nytecam

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Posted 08 December 2012 - 11:49 AM

Glad to have you aboard Matt - sounds if you could tweak this cam into the fast lane for real performance :grin:

#378 yaesu77

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Posted 11 December 2012 - 04:56 PM

my first test last night Skywatcher 80/600 Reduction 0.5 X

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#379 slipfit

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Posted 11 December 2012 - 09:59 PM

Not bad. What were the settings that you were using?

#380 mattflastro

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Posted 11 December 2012 - 10:49 PM

here's a real quick screen shot taken a couple of nights ago (literally a screen shot of a 7" LCD screen). The uneven brightness is due to the viewing angle of the screen and its uneven backlighting . Taken with a Meade 8" SCT , x.33 reducer in alt-az mode, with the unmodified LNTech cam .

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#381 euphony

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Posted 12 December 2012 - 02:58 AM

Both of those look promising, especially considering the price this little camera is!

Be interested to see what results are achieved when it's modified! :D

#382 yaesu77

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Posted 17 December 2012 - 12:37 AM

Not bad. What were the settings that you were using?


Agc off,sens up 256X,exp. manual,az mount.Filter ir remove.
I am sure that the next acquisition will be better. ;)

#383 yaesu77

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Posted 18 December 2012 - 05:23 PM

Better not?

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#384 euphony

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Posted 19 December 2012 - 02:37 AM

That is very good! Is that just a single shot of the screen?

#385 nytecam

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Posted 19 December 2012 - 06:31 AM

Better not?

Nice M42 result - here's my similar M42 crop via my Canon 1100d in 30s exp :grin:

#386 yaesu77

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Posted 20 December 2012 - 12:42 AM

That is very good! Is that just a single shot of the screen?


Thanks guys, for now I am very pleased.
It 'a 28-second video processing with registax and photoshop, it's just a few adjustments

Other processing:

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#387 mattflastro

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Posted 20 December 2012 - 04:15 AM

HALF second M42

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#388 mattflastro

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Posted 20 December 2012 - 04:19 AM

1 second M42

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#389 mattflastro

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Posted 20 December 2012 - 04:20 AM

4 second M42

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#390 mattflastro

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Posted 20 December 2012 - 04:38 AM

The half second, one second and 4 second M42 images are actual LNTECH screen shots taken with my SLT A33 (the screen was a 7" older LCD ) .
No filters of any kind , just scope , reducer and camera .
More importantly, the images are taken with a modified LNTECH camera .
For now the mod consisted only in disabling the AGC functionality that adjusts the A/D converter gain and replacing it with a circuit that allows manual adjustment of the gain in small increments.
The way this camera model was used by people (unmoddded) is with the AGC off (gain set to 6dB, which is minimum) .
OTher setting for the unmodded cam result in washed out images.
In these images the gain was up to about 36dB with 6dB more to go and no sign of color washing out .
At this stage I wasn't interested in lugging a laptop outside for pretty pics, all I wanted to determine was if the camera has potential and if the major drawback of using it as minimum gain could be circumvented .
That's why I didn't try to increase the signal to noise by doing a wider field . That and the fact that I was in a hurry and couldn't find the correct spacer between camera and reducer .

Next step is adding a temperature regulated Peltier and a few other odds and ends such as a higher resolution output .S-video is on the way after Peltier .After that I will integrate a USB interface for image capturing if the S-video shows enough improvement over composite .This is fun .

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#391 mclewis1

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Posted 20 December 2012 - 09:30 AM

Very nice.

Those modified 1-4s exposures do indeed show real promise. I look forward to what some noise reduction (cooling) will do.

Will you consider documenting your AGC disabling circuitry (and any other mods)?

#392 barbarosa

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Posted 20 December 2012 - 01:56 PM

:applause: :jump:
I wish you great suceess with the mods. I like this little cam, but the firmware limits are annoying. Your work shows the potential for a high performance to cost ratio. My skills might not be up to doing the mods, but I do hope that you share in detail. :bow:

#393 yaesu77

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Posted 20 December 2012 - 02:05 PM

I hope to do further tests in the coming days on an object more difficult.
I am very pleased with the small camera. :)

#394 euphony

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Posted 20 December 2012 - 02:16 PM

Mine arrived today :)

Although I am not going to be able to use it for at least a week according to the weather forecast!:(

Looking forward to having a little play with it

#395 mattflastro

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Posted 20 December 2012 - 09:19 PM

Very nice.

Those modified 1-4s exposures do indeed show real promise. I look forward to what some noise reduction (cooling) will do.

Will you consider documenting your AGC disabling circuitry (and any other mods)?


The mods are a work in progress right now . A partial list includes cutting some board traces under a microscope , soldering surface mount fine pitch parts , downloading some code into a microcontroller .
However, this breadboard is just a proof of concept .
I will add cooling and depending on how these all perform, a remote control , S-video and USB for computer capture .
I'll keep the forum posted as to the tests and work progress .

#396 GlennLeDrew

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Posted 21 December 2012 - 06:58 PM

Any idea of the cost of additional components, and the number of hours of work required? I wonder how this would compare to purchasing something ready-made like the Mallincam Jr. Or a cooled MC, if cooling is added here.

#397 euphony

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Posted 22 December 2012 - 06:50 AM

I had a quick play last night as there was roughly half an hour gap between clouds. Seeing was terrible as there was a lot of moisture in the air and that seemed to be emphasizing the moons glow across the sky. Anyway, it showed promise, so am looking forward to a moonless night.

The one thing I was struggling with was the colour. Everything had a tinge of red (even the noise! :lol: )
So I tried to adjust it and the blue looked too much then, I couldn't get a decent balance.
What have people on here used as the colour settings? Whatever I tried didn't look natural at all.

#398 James Cunningham

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Posted 22 December 2012 - 07:54 AM

Try getting the color close during the daytime on a terrestrial object.

#399 euphony

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Posted 22 December 2012 - 09:04 AM

Oh yeah, I never thought of that! D'oh! :lol:

#400 John59

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Posted 22 December 2012 - 10:25 AM

mattflastro, I am really impressed with how you are working with this camera to improve upon its abilities. I am very happy with mine and have found the limitations as you have mentioned to be annoying as well. However in really dark skies I found that it was exceptional. It's ability to perform in light polluted skies is very degraded especially when using AGC. Please keep up the great work and keep us posted.

Thanks again I always believed this had great potential ever since I found this smaller model a while back. (Earlier posts)






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