First Light With New Scope M27

Looks fairly solid Carl. What is the distance between the t-adaptor on the field flattener and the ccd chip? I read it should be 49.5 mm. Your set up looks like it may be slightly more given that the Atik filter wheel is 19.5 mm but its hard to tell from a photo.

Hi Kieran,

I just went out to measure the field flattener to ccd chip and it is 55mm.

Carl,

That's a fine first time image taken with your new set up. It's also good considering the circumstances re conditions, ie. Moon.

I find it interesting how you can obtain such a scale and close up of the nebula with the combination of camera and telescope. I've seen images before with larger telescopes in the range of 12 to 20 inches at much longer f ratios in particular with focal lengths of near 160 inches with results comparable to yours. It seems a lot of details can be yielded with smaller instruments of high quality refractor and the right small scale pixel/arc sec combined camera.

Well done!

Eamonn A
MPC J62
www.kingslandobservatory.com

There is usually a bit of tolerance either side of the best distance. It's +/- 4mm with the Televue 0.8 reducer I have. Might be worth trying a shorter extension between the filter wheel and ccd to get as close as possible to what WO recommend.

Opps just checked the WO site and the distance is 46.45mm

www.williamoptics.com/accessories/images...tener_ChiptoLens.gif

There is usually a bit of tolerance either side of the best distance. It's +/- 4mm with the Televue 0.8 reducer I have. Might be worth trying a shorter extension between the filter wheel and ccd to get as close as possible to what WO recommend.

Opps just checked the WO site and the distance is 46.45mm

www.williamoptics.com/accessories/images...tener_ChiptoLens.gif

As you can see by the photo above that is the closest I can get the CCD to the flatner without removing the filter wheel.

Carl,

That's a fine first time image taken with your new set up. It's also good considering the circumstances re conditions, ie. Moon.

I find it interesting how you can obtain such a scale and close up of the nebula with the combination of camera and telescope. I've seen images before with larger telescopes in the range of 12 to 20 inches at much longer f ratios in particular with focal lengths of near 160 inches with results comparable to yours. It seems a lot of details can be yielded with smaller instruments of high quality refractor and the right small scale pixel/arc sec combined camera.

Well done!




Eamonn A
MPC J62
www.kingslandobservatory.com

Thanks a lot Eamonn for your kind comments