Hi

Has anyone done the above?

When I attach my Canon to the ETX 125 how do I set the exposure, focus and 
apeture settings etc ?

Steve

Steven Gill wrote:
> Hi
> 
> Has anyone done the above?
> 
> When I attach my Canon to the ETX 125 how do I set the exposure, focus and 
> apeture settings etc ?
> 
> Steve
> 

Hi,
I'm sure many people have done that. I have relatively limited 
experience with a Canon 300D/ETX125.
I use a vey nice program called DSLR focus 
http://www.dslrfocus.com/home.html
to drive the camera from a laptop.
It is very useful to adjust the focusing, since it's very difficult to 
see if you are in focus on the small camera screen.
For exposure, well, i guess I just experiment, depending on the subject.
Hope this help you a little bit
Philippe

Thanks Philippe, I'll give it a go

Steve



"Philippe Gautier"  wrote in 
message news:ErOtk.49539$E41.36410@text.news.virginmedia.com...
> Steven Gill wrote:
>> Hi
>>
>> Has anyone done the above?
>>
>> When I attach my Canon to the ETX 125 how do I set the exposure, focus 
>> and apeture settings etc ?
>>
>> Steve
>>
>
> Hi,
> I'm sure many people have done that. I have relatively limited experience 
> with a Canon 300D/ETX125.
> I use a vey nice program called DSLR focus 
> http://www.dslrfocus.com/home.html
> to drive the camera from a laptop.
> It is very useful to adjust the focusing, since it's very difficult to see 
> if you are in focus on the small camera screen.
> For exposure, well, i guess I just experiment, depending on the subject.
> Hope this help you a little bit
> Philippe

Steven Gill wrote:

> Hi
> 
> Has anyone done the above?
> 
> When I attach my Canon to the ETX 125 how do I set the exposure, focus and
> apeture settings etc ?

Almost everything that you need to know
should be on this site:-
http://www.weasner.com/etx/menu.html


Assuming that you are operating at prime focus,
then you must put the camera in Manual mode. 
The apeture is decided by the ETX.  There is a pc 
application (Canon Remote ??) that comes with the
camera.  It allows exposures up to 30 seconds,  which
is fine for getting started.  Set the iso about 800, 
or even 1600.   The higher the iso, the noisier the 
image will be.  
The biggest problem is focussing.  If the moon is out,
then you may be able to do a rough focus through the
camera's viewfinder.  Otherwise, try some medium sized jpg 
shots of a star, at say 2s exposure, while you adjust focus.
Once you think that you 
are at focus, then set the camera to large format
jpg and fine tune the focus.
At this point set the images to RAW mode, and start
taking images.

Check focus every 30 minutes.

HTH


Donal
--

On or about 2008-08-29,
Steven Gill  illuminated us with:
>
>
> Thanks Philippe, I'll give it a go

I've done it successfully using an ETX-105. I use some ankle/arm
training weights (like beanbags with shot in them) to counterbalance
the tube. That may ne be necessary on the -125 as it's a bit larger.

-- 
Mark
            Real email address           |               Fortune Cookies:
                is mark at               |            You love Chinese food.
              ayliffe dot org            |

Steven Gill wrote:

> Hi
> 
> Has anyone done the above?
> 
> When I attach my Canon to the ETX 125 how do I set the exposure, focus and
> apeture settings etc ?

http://www.astropix.com/
http://www.astropix.com/HTML/I_ASTROP/TOC_AP.HTM

On or about 2008-08-29,
Mark Ayliffe  illuminated us with:
>
>
> On or about 2008-08-29,
> Steven Gill  illuminated us with:
>>
>>
>> Thanks Philippe, I'll give it a go
>
> I've done it successfully using an ETX-105. I use some ankle/arm
> training weights (like beanbags with shot in them) to counterbalance
> the tube. That may ne be necessary on the -125 as it's a bit larger.

Oh, and if you're serious about it, you'll want to use polar mounting,
not the default alt-az. The latter is OK for quick snaps and possibly
lunar shots, but you'll not get anything of reasonable quality in the
draker areas because the drive isn't smooth enough. Or so I've found.

-- 
Mark
Real email address | Nothing takes the taste out of peanut butter quite like
    is mark at     |              unrequited love.-Charlie Brown
  ayliffe dot org  |