Michael Angelo had an epiphany

[marc4darkskies (Marcus)]

Originally Posted by Paul Haese

It seems to be a consensus on this and I can see everyone's point. I struggled with the framing in my planning too. The small emission nebula is not well shown in the sky6 and my sensor only covers about 1.89" per pixel. Perhaps it needs a mosaic or maybe I need a bigger sensor. Mosaic might be easier.

I guess the rule of thirds suggests you should lift the framing up a tad. Since that's not possible - just crop it! That's even easier!!

[gregbradley]

Really nice result from that setup. Very 3D and I like the colour scheme. NB is definitely the way to go with this object.

I think you got as much as you're going to get with that unless you do a mosaic which is tough.

My opinion is the 8300 chip is not the ideal camera for your TSA102. Your STL11 is.

The "problem" with the 8300 chip is it is quite small and so you get a digital zoom factor and this stretches the resolution of the 4 inch APO too much and you are asking it to capture beyond its resolution limits so the result can look slightly strained.

Look at the many FSQ106/STL11 images that are sensational. Large chip sensors with 9 micron pixels take the pressure off the 4 inch APO to perform more like a 140mm + APO. Its like a sweet spot and the image comes alive as a result and you get more territory in the one image.

Just my opinion. Whack your STL onto the TSA and see how it goes.
I think you'll be pleasantly surprised.

KAF8300 seems to fit best in medium focal length (1500-2000mm) with larger apertures like 8 inches and above. It doesn't perform well either in the longer focal lengths - 2500mm + without an AO or super seeing.

Greg.

[Leonardo70 (Leonardo Orazi)]

Congratulations Paul .. this is a fantastic shot ...

All the best,
Leo

[Paul Haese]

Originally Posted by gregbradley

The "problem" with the 8300 chip is it is quite small and so you get a digital zoom factor and this stretches the resolution of the 4 inch APO too much and you are asking it to capture beyond its resolution limits so the result can look slightly strained.

With respect I disagree with this statement Greg. With the 8300 I am getting a resolution of 1.89" per pixel with the reducer. That is hardly what would call giving a slightly strained look Greg. It is entirely possible my processing on this image is causing that look. If you look through my other images with the TSA there are plenty of them that look natural and many of those are with hours in excess of 7 hours. This image only has 4.8 hours and hence looking not well finished.

Anyway horses for courses.

[Peter.M]

Nice work Paul, I see you have rotated the image slightly since you last presented it. I love the planetary in the image.

[gregbradley]

Originally Posted by Paul Haese

With respect I disagree with this statement Greg. With the 8300 I am getting a resolution of 1.89" per pixel with the reducer. That is hardly what would call giving a slightly strained look Greg. It is entirely possible my processing on this image is causing that look. If you look through my other images with the TSA there are plenty of them that look natural and many of those are with hours in excess of 7 hours. This image only has 4.8 hours and hence looking not well finished.

Anyway horses for courses.

\

Strained look is probably a poor choice of words. Its more the broader field that gives the image a different look. Anyway try your STL 11 out on it someday and see if like it or not.

Greg.

[Gem (Grant)]

Wow! I love it!

[Paul Haese]

Originally Posted by gregbradley

\

Strained look is probably a poor choice of words. Its more the broader field that gives the image a different look. Anyway try your STL 11 out on it someday and see if like it or not.

Greg.

Yes that makes sense Greg. I have done one mosaic so far and ought to investigate this further at some point.

I don't think the STL will work as I think the focusor will vignette the sensor too much. However I will give it a go, once I get the RC12 sorted.

[Paul Haese]

Thanks Grant, Leo and Pete, appreciate your thoughts.

[Poita (Peter)]

I really love the colour scheme on this, the upper quadrants look fantastic. It has a beautiful ethereal look to the image.
I'd buy a print of it, no question.

I would agree with you on gaining a bit more data to reduce the noise, it is a cracking image with so many hours invested in it that I reckon it is worth finishing off and getting it pretty much perfect.

It is so good that it really does scream out for a mosaic, but man that is a lot of committment...

[Paul Haese]

Thanks Peter. Hmmmm maybe a mosaic is a necessity in the next year or so. Beauty of my setup is that I can get repeatable results now and image from year to year so long as I don't rotate the camera. Even then I can plate solve and get the camera into the same orientation again.