(meteorobs) OT -Question to Cloudbait Observatory.

[stange]

Updated IR website page. +Acknowledging Chris's invaluable technical help.

http://www.geocities.com/stange34@sbcglobal.net/IRExperiment

YCS


----- Original Message ----- 
From: "stange" <stange34 at sbcglobal.net>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2008/12/20 11:29
Subject: Re: (meteorobs) OT -Question to Cloudbait Observatory.


> WOW! Great information!
>
> I did confuse the two terms. I had no idea the PC164C(already paid for),
> could be modified! I have done a lot of work on surface mount boards on
> prior webcam modifications so it will be easy for me(IF I am careful
> still)....
>
> Looks like my tasks will never end..... I will now search for the mods 
> which
> are probably on QCUIAC website.
>
> Thanks MUCHO Chris!
>
> Larry
>
> ----- Original Message ----- 
> From: "Chris Peterson" <clp at alumni.caltech.edu>
> To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
> Sent: 2008/12/20 11:14
> Subject: Re: (meteorobs) OT -Question to Cloudbait Observatory.
>
>
>> Larry-
>>
>> Do not mistake shutter time for frame rate. All conventional video 
>> cameras
>> operate at a fixed frame rate of 30 fps (or 25 fps). But the frame
>> exposure
>> time can be much less- that's a main method of exposure control (the 
>> other
>> being adjustment of the video amplifier gain). The PC164C has an exposure
>> time of around 1/100,000 second when the electronic shutter is enabled 
>> and
>> the average video level is high. While the PC164C does not have an
>> external
>> control to set the shutter time, it is an easy modification that is
>> documented on a number of web sites. Some cameras provide a dipswitch or
>> other mechanism to directly control shutter time. Any frame grabber will
>> work for you. While the 30 fps limit will determine your time resolution,
>> the shutter time will determine how much or little motion blur you get in
>> an
>> individual frame.
>>
>> Since you are interested in bright events, you don't really need a 
>> PC164C.
>> Something like a PC32C might be a better choice, because it's one of the
>> easiest cameras to modify for manual shutter speed control.
>>
>> Chris
>>
>> *****************************************
>> Chris L Peterson
>> Cloudbait Observatory
>> http://www.cloudbait.com
>>
>>
>> ----- Original Message ----- 
>> From: "stange" <stange34 at sbcglobal.net>
>> To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
>> Sent: Saturday, December 20, 2008 12:01 PM
>> Subject: Re: (meteorobs) OT -Question to Cloudbait Observatory.
>>
>>
>>> Thanks Chris I will check on the coatings.
>>>
>>> Would love to speed it up....  My cheap capture card won't allow 
>>> anything
>>> faster than 30 FPS. Eventually I must get the right hardware and do it
>>> right...... (sigh)
>>>
>>> Larry
>>> YCS
>>
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