View Full Version here: : Rho widefield Redcat 51
gregbradley
10-06-2019, 09:05 AM
Another image from that series using the new Redcat 51.
I plan to do a more panels and form a mosaic.
https://pbase.com/gregbradley/image/169325610/large
Greg.245039
Peter Ward
10-06-2019, 09:50 AM
Colour is a little bright, but, gee that's a uber-sharp piece of glass. Most excellent :thumbsup:
Atmos
10-06-2019, 11:11 AM
It looks pretty sharp there Greg :thumbsup:
Does the focuser have a way of correcting for tilt? It looks like you have some on the left side of the frame. With the star size difference you may find it difficult getting a nice merge between the frames for a mosaic.
gregbradley
10-06-2019, 11:16 AM
Yeah I am finding my feet here with regards to colour with these DSLR type images. A lot on the net tend to be very colourful. I've pulled it back a little and it may still be too colourful. A hard call sometimes.
With a mosaic I overlap at least 25% and by then the stars are good, it won't be a problem.
No the lens itself is like any lens but it does end in an M48 male threaded end. You attach your T ring and mount it in your camera.
I have bought a tilt/tip adapter for it from Teleskop Services and will be adding it to before the T ring. I think I'll get one of those new copper T Rings William Optics are selling as well for even stronger and more accurate attachment. This type of optic is going to be sensitive to tilt and also its quite long and slightly heavy so that will put pressure on the mount.
On my ML16 I have it fully corrected and supported so round stars to the corners there.
Greg.
Retrograde
10-06-2019, 11:53 AM
Another very nice image with the Redcat. Looks like you're having a lot of fun!
Yep probably a little over-saturated - mostly in blue though I think.
Atmos
10-06-2019, 12:32 PM
That's interesting to note. I've usually been dealing with 10-15% overlap myself and found that tilt leads to irritating registration errors when merging the panels together. An external tip/tilt adapter will certainly help :)
The focuser on my Sky Rover has 3 screws on it that allow for the change of focuser collimation. They're fiddling and don't fine tune well out in the field but I've found doing it inside with a 2" Glatter and circular holographic a quick and easy way of getting it bang on at F/5.
The_bluester
10-06-2019, 01:19 PM
Great to see some real world images, I came very close to buying a Redcat. Maybe next year.
Paul Haese
10-06-2019, 03:09 PM
Great colour Greg, certainly a crowd pleaser this region.
strongmanmike
10-06-2019, 05:37 PM
Now that's what I call colourful :thumbsup: sharp too! Lovely
Looks like a pogo horse :D
Mike
gregbradley
10-06-2019, 07:03 PM
That's interesting about adjusting it inside. I'll have to check that out.
With the Microline I had to pack out the Redcat 51 about twice as much as I had to with the Pentax 645 lens.
Greg.
Stevec35
10-06-2019, 09:38 PM
Nice one Greg. The colour might be a bit intense for some but I think lots of colour works well for this object.
Cheers
Steve
Placidus
11-06-2019, 07:04 AM
Yum.
Interesting to see how the dust at the back totally obscures the distant stars, even where there is lots of foreground emission.
topheart
11-06-2019, 09:01 AM
Beautiful Greg!!
Like fireworks in the sky!
Cheers,
Tim
gregbradley
11-06-2019, 05:21 PM
Thanks Steve.
Its easy to overdo the colour on these stock mirrorless camera images as they do colour so well.
I imagine even though its blocking the light the dust is still parts per million type density.
Thanks Tim.
I like it so I intend to do a mosaic next time at my site.
These mirrorless and lens type images are only like 2 hours total so you can do a few each clear night.
Greg.
Greg.
vlazg
11-06-2019, 07:01 PM
Nice Greg, an awesome and colorful part of the sky.
I will be doing a 2 part mosaic of this area if i get a chance
multiweb
12-06-2019, 07:05 AM
Super deep and colorful. That lens is indeed very sharp. :thumbsup:
gregbradley
12-06-2019, 06:53 PM
Thanks. Its a great area for a mosaic.
Cheers Marc. I've been having fun with the super widefield stuff and more fun to come but I am looking at getting the Honders back in action shortly.
Greg.
Lovely colour, Greg, I like it a lot.
gregbradley
15-06-2019, 07:36 PM
Thanks Bart. I am glad you like it.
Greg.
Ryderscope
15-06-2019, 07:54 PM
A clear and definite statement with bold colours Greg :thumbsup:
gregbradley
16-06-2019, 11:00 AM
Thanks Rodney. A clever way to express it.
I'll be doing a 2nd panel to get the Blue Horsehead which I think completes the area next time I am at my dark site.
Greg.
Slawomir
23-06-2019, 06:52 PM
There is so much going on in this image and so many details to explore - I really like it Greg :thumbsup:
gregbradley
23-06-2019, 06:56 PM
Thanks Suavi. Next time I am at my dark site I am planning to extend it into a 2 panel mosaic to capture the Blue Horsehead that is above the top of the image. It'll balance the image out.
Greg.
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