Re: [M]: IR control for LX200
| Subject: | Re: [M]: IR control for LX200 |
| From: | Kyle McDonald |
| Date: | Sun Jan 04 03:50:48 1998 |
Graham,
If I have been following this thread correctly, there are some people who
would like to build an IR connection between their computer and the LX200.
This is a great idea as long as:
a) you dont need to send IR commands while a shutter is open
b) there is no one around you trying to take pictures either
I am pretty sure, if you have a shutter open on a CCD pointed at a dso and
imaging it - and there is IR blasting about, there will be some record of
it in the exposure. Someone this morning said that a CCD should use an IR
filter, but I am not really sure that would work if you are sending IR
signals to a scope many feet away.
Maybe someone who has an IR filter could try shooting a TV set remote
contol at their telescope/CCD and see if it affects it negatively?
Kyle
>In message , Kyle McDonald writes
>>How about if I mention this again. Has anyone thought about the IR
>>affecting film or CCD ? For instance, take your remote control for a
>>television and flick it about while you have an image exposing. It really
>>shows up on a CCD....
>>
>I saw this comment first time round and am still confused as to whats
>going on here :(
>
>IR cannot pass through a the body of a metal CCD camera or photographic
>camera, rather like visible light. I presume youre not inadvertently
>passing the IR through the optical system either directly or by
>reflection off a surface!
>
>Can you provide more details of your experience (camera, etc.).
>
>Puzzled,
>Graham
If I have been following this thread correctly, there are some people who
would like to build an IR connection between their computer and the LX200.
This is a great idea as long as:
a) you dont need to send IR commands while a shutter is open
b) there is no one around you trying to take pictures either
I am pretty sure, if you have a shutter open on a CCD pointed at a dso and
imaging it - and there is IR blasting about, there will be some record of
it in the exposure. Someone this morning said that a CCD should use an IR
filter, but I am not really sure that would work if you are sending IR
signals to a scope many feet away.
Maybe someone who has an IR filter could try shooting a TV set remote
contol at their telescope/CCD and see if it affects it negatively?
Kyle
>In message , Kyle McDonald
>>How about if I mention this again. Has anyone thought about the IR
>>affecting film or CCD ? For instance, take your remote control for a
>>television and flick it about while you have an image exposing. It really
>>shows up on a CCD....
>>
>I saw this comment first time round and am still confused as to whats
>going on here :(
>
>IR cannot pass through a the body of a metal CCD camera or photographic
>camera, rather like visible light. I presume youre not inadvertently
>passing the IR through the optical system either directly or by
>reflection off a surface!
>
>Can you provide more details of your experience (camera, etc.).
>
>Puzzled,
>Graham
