NGC 6188 in Narrow Band with Atik 11002M

[Hagar (Doug)]

Originally Posted by Paul Haese

Interesting stuff Doug. Did you find any vignetting in the image with this camera and the RC8's narrow rear opening?

This image covers a huge field and I am happy to see that the stars are nice and small too. Think more about the STL11 if this is the case.

It was an interseting exercise. There was some vignetting but flats controlled it pretty well. I did have some trouble with the OIII flats when using my EL panel and think I will have to give Pete a job to make me a light box for the 8".
I am really impressed with the 11002 chip and it's capabilities. The increase in field of view is about double that of the 8300 CCD.

[Paul Haese]

That sounds great Doug. Perhaps a 35mm sensor is on the cards next, now for the price to drop remarkably. Yeah right.

[davewaldo]

Hi Doug, great image! I love how the contrast really emphasises the detail.

It looks to me however that there is quite a bit of aberration off axis...? Is that flattener not doing its job for the large chip?

[Hagar (Doug)]

Originally Posted by davewaldo

Hi Doug, great image! I love how the contrast really emphasises the detail.

It looks to me however that there is quite a bit of aberration off axis...? Is that flattener not doing its job for the large chip?

The camera had quite a serious tilt as a result of the clamp up connectors and now that I have a serious camera I will be getting some screw together connectors made to suit.

[davewaldo]

Originally Posted by Hagar

The camera had quite a serious tilt as a result of the clamp up connectors and now that I have a serious camera I will be getting some screw together connectors made to suit.

Nice

[Hagar (Doug)]

Originally Posted by Paul Haese

That sounds great Doug. Perhaps a 35mm sensor is on the cards next, now for the price to drop remarkably. Yeah right.

I am surprised how well this camera performs and believe me the prices of this chip are dropping quite rapidly. Should be some real bargains in the near future.

Originally Posted by davewaldo

Nice

Thanks Dave.

[RobF (Rob)]

I'd missed this one Doug. I love the striking contrast along the edge of the neb cloud in the red one. Was that a bit of Ken Crawford-style selective High Pass masking perhaps? Whatever you've done, we want MORE!

[Hagar (Doug)]

Originally Posted by RobF

I'd missed this one Doug. I love the striking contrast along the edge of the neb cloud in the red one. Was that a bit of Ken Crawford-style selective High Pass masking perhaps? Whatever you've done, we want MORE!

Thanks Rob, lots of selective masking and for once I actually achieved what I set out to achieve.

No more images from me until early Sept when I get back from Qld holidays.

[Octane (Humayun)]

Doug,

Sensational effort. This has been the most difficult object I've encountered thus far. I've never truly been happy with any of my efforts.

I love the red version. : )

H

[Hagar (Doug)]

Originally Posted by Octane

Doug,

Sensational effort. This has been the most difficult object I've encountered thus far. I've never truly been happy with any of my efforts.

I love the red version. : )

H

Thanks H,,, Not sure which one I like best but I am sure more exposure and a little less fgocal length would improve this image of this hard target.