First light AP RHA 305 F3.8 REPRO - Page 2

gregbradley · #21 03-05-2015, 10:29 PM

Quote:

Originally Posted by Paul Haese

Bit of a shake down yet but you're well on your way Greg. I look forward to your updates.

Cheers Paul. A few items to smooth out but yes all very promising.

Greg.

strongmanmike (Michael) · #22 03-05-2015, 11:12 PM

That one looks alright Greg...you were quite lucky with the weather

This is gunna be good watching your progress

Mike

gregbradley · #23 03-05-2015, 11:28 PM

Quote:

Originally Posted by strongmanmike

That one looks alright Greg...you were quite lucky with the weather

This is gunna be good watching your progress

Mike

I drove out of Sydney and it was overcast and patchy rain. Arrived at my dark site to perfectly clear skies horizont to horizon with no wind. An amazing sight.

The Trius was in particular out of alignment as I had been monkeying around with it trying to fit an OAG to it for the CDK and reducer with no luck. It was better on the 2nd night as I squared up the tilt/tip adapter during the day but still not perfect. As Peter said the scope really shows up deficiencies in the squareness of things. I am sure you've been though this with your AG12. They are not that dissimilar as an RHA uses Newt type mirror shapes.

The thing that impressed me about the Cent A image was not so much that its a super image as its not, but how good it was considering how widefield the original image is. Its cropped very heavily and I think it holds up detail remarkably well considering this.

Next trip it'll be more widefield - Scouts Honour!

Greg.

cometcatcher (Kevin) · #24 04-05-2015, 01:46 AM

Wonderful first light! May there be many more from this great scope.

gregbradley · #25 04-05-2015, 07:43 AM

Quote:

Originally Posted by cometcatcher

Wonderful first light! May there be many more from this great scope.

Thanks Kevin. Appreciated.

Greg.

Eden (Brett) · #26 04-05-2015, 08:57 AM

That's awesome, Greg...if that's what you can pull off in 20 minutes, your long exposures will certainly be something to brag about!

Rod771 (Rod) · #27 04-05-2015, 09:04 AM

Very nice scope Greg! Looking forward to your progress with it.

rustigsmed (Russell) · #28 04-05-2015, 09:28 AM

nice one greg, good to see it up and running - quite a FOV it has too!

Andy01 (Andy) · #29 04-05-2015, 11:33 AM

Nice to see the new toy in operation - watch out APOD when you get it all sorted to your satisfaction

gregbradley · #30 04-05-2015, 12:06 PM

Quote:

Originally Posted by Eden

That's awesome, Greg...if that's what you can pull off in 20 minutes, your long exposures will certainly be something to brag about!

Widefield is where the scope will be strongest but its also no slouch with a small chip for galaxies as Mike has shown 12 inch F3.8 is a potent formula.

Quote:

Originally Posted by Rod771

Very nice scope Greg! Looking forward to your progress with it.

Cheers Rod. Its not a bad start eh?

Quote:

Originally Posted by rustigsmed

nice one greg, good to see it up and running - quite a FOV it has too!

Yes it is quite a wide field. Not quite FSQ but close.

Quote:

Originally Posted by Andy01

Nice to see the new toy in operation - watch out APOD when you get it all sorted to your satisfaction

Well that would be cool, I have yet to get one of those. I think its pretty competitive these days.

Greg.

Leonardo70 (Leonardo Orazi) · #31 04-05-2015, 06:13 PM

Congrats Greg, for image and the new telescope, a dream for me !

All the best,
Leo

gregbradley · #32 04-05-2015, 06:29 PM

Quote:

Originally Posted by Leonardo70

Congrats Greg, for image and the new telescope, a dream for me !

All the best,
Leo

Grazie Leo. I like your recent Leo Triplet image as well.

Greg.

jase (Jason) · #33 04-05-2015, 08:09 PM

Congrats on your new rig Greg. A real performer!

I've reading the equipment post updates. For shake down images, they're pretty good but look a little rushed and abrupt. Explainable, as I would be just as excited to show it off. Should be better once you get things dialed in. Don't forget, its not what you have, its what you do with it that counts.

gregbradley · #34 04-05-2015, 09:07 PM

Quote:

Originally Posted by jase

Congrats on your new rig Greg. A real performer!

I've reading the equipment post updates. For shake down images, they're pretty good but look a little rushed and abrupt. Explainable, as I would be just as excited to show it off. Should be better once you get things dialed in. Don't forget, its not what you have, its what you do with it that counts.

Thanks Jase.

Greg.

gregbradley · #35 04-05-2015, 11:06 PM

I've done a repro of this image. Looking at it with fresh eyes it had a yellow bias and had some left in it. Also a plus I am noticing with the Honders image they seem to take post processing very well compared to other scope's images I have used over the years. Stronger signal to noise ratio I take it. What I find impressive about this image is the depth of the image for so little exposure, so little noise and also how the sharpness held up from such a heavy crop (it really is quite a widefield image and this is probably only a 1/4 of it).
Centaurus A

http://www.pbase.com/gregbradley/ima...22874/original large (looks best)

http://www.pbase.com/gregbradley/image/159922874/large

Greg.

Ross G · #36 06-05-2015, 10:31 PM

What a beautiful photo for a "first attempt".

Congratulations on the new telescope Greg.

Good luck....I'm sure some amazing photos are coming!

Ross.

gregbradley · #37 07-05-2015, 06:23 PM

Quote:

Originally Posted by Ross G

What a beautiful photo for a "first attempt".

Congratulations on the new telescope Greg.

Good luck....I'm sure some amazing photos are coming!

Ross.

Thanks Ross. You are always so encouraging. Thanks for that.

Greg.

Placidus (Mike and Trish) · #38 08-05-2015, 08:09 AM

Repro is even better colour-wise. The relativistic jet is very clear.

gregbradley · #39 08-05-2015, 11:35 AM

Thanks Mike
Its nowhere near as good as your one but its a good start.
I have another galaxy image that I am happy with
Greg