Would this work

[SionR25]

Hi everyone,

I have a heritage 130p on a supatrak mount and want to do dso imaging but i'm not sure if the metal focuser could support the weight of my 7d. Instead I was thinking of attaching my 500mm camera lens to the supatrak mount. It has a handle that fits into the dovetail holder. I was just wondering would this be a good start in astro photography without me having to spend more money?

I'll attach the picture of the lens.

[RikM]

I don't think the focuser would support the weight of a 7D or reach focus even it it could. Mounting the camera on the Supatrack mount might get you started but you will have to keep the exposures short or field rotation will start to blur everything.

For deep sky AP you really do need a sturdy equatorial mount to stand much chance of getting a decent image.