Cartes du Ciel query - finder rectangle

[lukebl]

Hi, can anyone tell me how I set up the finder rectangle in Cartes du Ciel, so that it accurately shows the field of view of my camera's chip? I can't find the info on the help files.

The default setting on my version is for two cameras (see screenshot below), but I would like to set it for my Canon 450d at prime focus on my 250mm f/4.8 Newt. How do I work out the width/height settings for this setup?

[Bizibilder]

Luke, I used CCDCalc to get the FOV settings and put them into No3. Then uncheck all except No3 and check "mark at centre of chart" - this keeps the square centered. Then click on and centre your chosen object and zoom in to see what's going on. You can just see the rectangle in the screenshot. (Now all I've got to do is get rid of the Telrad!)

CCD cacl can be found here:

http://www.newastro.com/book_new/camera_app.php

[gfletcher]

Hi Luke

I believe your FOV settings are:

63.6 mins X 42.6 mins

Graham

[lukebl]

Thanks gents. Think that's sorted it.

How about the orientation, though? I guess it will be a bit of trial and error to work out what angle the camera is set at. I generally have it in the same position, at right angles to the OTA.

[steppenwolf]

The following from my book may assist with your 200P. This assumes that your focus tube is pointing towards the mount:-

[lukebl]

Thanks Steve, that is generally how I orient the camera when imaging. What I meant was the setting of the orientation of the rectangle in CdC. I compared it with an image I'd taken, and it seems that the orientation angle needs to be set at 40 degrees in CdC.

[steppenwolf]

I compared it with an image I'd taken, and it seems that the orientation angle needs to be set at 40 degrees in CdC.

I choose my object in CdC then chose the reticule that matches the camera I intend to use for the image. I then adjust the reticule's orientation to best frame the object and then rotate the camera to match that. This means that there is no one 'correct' orientation angle, it is object dependent.

[alcol620]

Long time since a post on this subject. But just started to use CduC and have managed to input the data on the chart for the camera but can't see any instructions on how to get the camera description text added

Help required

Thanks

[steppenwolf]

Long time since a post on this subject. But just started to use CduC and have managed to input the data on the chart for the camera but can't see any instructions on how to get the camera description text added

Click on:-

Setup

    Display

        Finder Rectangle

           Enter Camera name in 'Description (last column as shown below)

[alcol620]

Hi Steve

Coming to my rescue again!

I am able to put the values in and compute the FOV but can't see anywhere that allows the entry of the description.

Best regards

Alec

[steppenwolf]

Can you show me a screen dump of the dialogue box where you are entering the values in?

[alcol620]

Hi Steve

I have attached the two images. The smaller one is where I input the data and it calculates the FOV and put them into the table on the larger image. No where can I see where to add the description.

thanks for your input

Regards

Alec

[martin_h]

Just click in the box and type.............

[beckemd]

As far as removing the Telrad...just go to Finder FOV tab before the FInder Rectangle and unclick the 3 boxes that make up the telrad...

[alcol620]

Thanks Martin, just went and sorted it.

How stupid can I get. Can't believe, but then I can, that I couldn't sort it myself.

Regards

Alec