This is to the left of the Rho Ophiuchi complex. I also took a very widefield image of it for my existing Rho Ophiuchi image to form a mosaic to be posted another time.
CFF 105 F6 oiled FPL55 triplet. Wow I am really liking this scope. The optics are probably the sharpest of any scope I have had. The Feathertouch focuser seems even nicer than other ones I have had. If you are looking for a high end APO consider CFF as they are really at the pointy end of perfection here.
Proline 16803, (round stars to the corners thanks to the also very well made field flattener and precise adapters from Joshua Bunn here).
LRGB image, -30C, 10 minute subs, 70, 40 40 40 all 1x1 binned at my dark site piggybacked on a CDK17 on an AP1600 with ridiculous jerry rigged counterweights (whatever was nearby that was heavy).
Did you know there has been a run on gym weights?? I have ordered some from Ebay to neaten up my mount.
Nice work Greggles and the degree of correction and star quality looks pretty much as good as my FSQEDX4...it's so easy to image with these sort of scopes, they just deliver
That’s come up quite nicely Greg, it’s on my to-do list
The CFF is correcting for the 16803 very nicely.
It had a very specific metal back distance of 77.4mm. I measured everything carefully and added the extra 1mm for the 1/3rd of the 3mm thick Astrodon filters. Joshua Bunn made me 2 very precise adapters so I am at the exact distance. Thanks Josh. I have one for both the Proline and the Microline 16 which I have yet to use on it. I wonder if the smaller pixels will be noticeable.
Quote:
Originally Posted by strongmanmike
Nice work Greggles and the degree of correction and star quality looks pretty much as good as my FSQEDX4...it's so easy to image with these sort of scopes, they just deliver
Mike
Yes they are a pleasure to use and make imaging so much easier and really more fun.
Quote:
Originally Posted by Andy01
Nice field Greg!
Sharp too - I wonder if for aesthetic's sake if it would be worth punching up the yellow stars for some colour contrast?
Great stuff - congrats on a new toy that works as it should!
That's a good idea Andy. I did a small amount of that and it does look a bit nicer. Thanks for the tip.
Quote:
Originally Posted by Bart
That is a nice image, Greg.
Cheers Bart. This area of the sky is really one of the night sky gems.
My FSQ106 got taken out of mothballs last week...just waiting on the 645 reducer to arrive ('aint cheap but a 16803 field at 380mm f/3.6 was too seductive )
Images like the one you have showcased here certainly have a wow-factor that
is most worthy of emulating
With my image scale (3.5"/pix) seeing is never a big issue, I think that's a big part of making it seem so easy, subs rarely look soft/bad
Mike
That's true.
Quote:
Originally Posted by Retrograde
A really nice Blue Horsehead Greg.
Wow this thing is big - you only just fitted it in with the refractor & FF chip.
Yes it is big. The chip is actually 50% bigger than full frame. Even so I couldn't get all of Rho Ophiuchi in one image and didn't really have time available to do a mosaic of it so I chose this instead.
Quote:
Originally Posted by JA
Superb corner to corner Greg....
Best
JA
Thanks JA. Correct spacing and a little adjustment for tilt and it was all good.
Quote:
Originally Posted by marc4darkskies
Nicely done Greg! Quite a haunting image.
Cheers Marcus. It is a bit of moody area. I also imaged this widefield with a Canon EOS R and a 14mm lens to add to the Rho image I did already.
My FSQ106 got taken out of mothballs last week...just waiting on the 645 reducer to arrive ('aint cheap but a 16803 field at 380mm f/3.6 was too seductive )
Images like the one you have showcased here certainly have a wow-factor that
is most worthy of emulating
I'd love the 645 reducer for the FSQ (although a bit of pain to switch in and out of course) but it's just so expensive there will just have to be enough fields that the F5/16803 suits for some time yet ...besides, preeeetty sure I would get an easy to read facial expression, if I was to ask....
As far as I know CFF don't make a reducer for it. They might if I asked. Suavi has the same scope and he has the Riccardi reducer. There are 2 sizes of the Ricarrdi reducer. One I think handles full frame so it might handle the 16803. The other is smaller and I think meant for APSc sized sensors. At this stage I am not really interested in a reducer as I have a Redcat 51 which is 250mm and the Pentax 300mm F4 EDIF not that either of those would match a reduced 105 F6. Later on I am sure I will want to experiment. It would be handy for the very wideview objects like Rho Ophiuchi, Orion and Horsehead, Vela, LMC and SMC etc.
I'd love the 645 reducer for the FSQ (although a bit of pain to switch in and out of course) but it's just so expensive there will just have to be enough fields that the F5/16803 suits for some time yet ...besides, preeeetty sure I would get an easy to read facial expression, if I was to ask....
Mike
I think there are 2 reducers. I used one that from memory cost about US$600 and it went inside the end of the scope on a bucket adapter which I think I still have.
It gave round stars to the corners of the 16803 so no need to get the super expensive one. I see them sometimes on Astromart.
there will just have to be enough fields that the F5/16803 suits for some time yet 
