Rho Ophiuchi

[gregbradley]

I did some mirrorless camera imaging on the weekend.

This one was piggybacked on my CDK17 and autoguided.

Sony A7R2( 42.4mp backside illuminated full frame) on an AP1600 mount.

14 x 5 minutes F4.0, ISO640 under a 1/3rd moon.

Processed in Adobe Lightroom, PixInsight and Photoshop.


http://www.pbase.com/image/165750987/large

Greg.

[traveller (Bo)]

Great FoV and a nice image Greg.

[strongmanmike (Michael)]

Those Pentax lenses are great kit, must be fun having them mounted on your big beautiful CDK, nice result Greg

Mike

[Atmos (Colin)]

Really nice Greg
Your FOV is so much nicer than my APS-C!

[gregbradley]

Originally Posted by traveller

Great FoV and a nice image Greg.

Thanks for that. 85mm does cover a good area for this target.

Originally Posted by strongmanmike

Those Pentax lenses are great kit, must be fun having them mounted on your big beautiful CDK, nice result Greg

Mike

Thanks Mike. Yes the Pentax 67 is a good source of cheap excellent lenses that can handle a 16803. This image though was with my Sony mirrorless camera and a Zeiss 85mm lens.

Originally Posted by Atmos

Really nice Greg
Your FOV is so much nicer than my APS-C!

Thanks Collin. 50mm would be a closer match for APSc. Your image though is outstanding. I like how clear it is.So many stars in these images its a bit mind boggling.

Greg.

[Placidus (Mike and Trish)]

The colour and contrast in the Milky Way is delicious. Love the streamers of dust hanging down like ribbons from Rho-Antares.

[multiweb (Marc)]

Very punchy colours Greg. Widefield is fun.

[strongmanmike (Michael)]

Originally Posted by gregbradley

Thanks Mike. Yes the Pentax 67 is a good source of cheap excellent lenses that can handle a 16803. This image though was with my Sony mirrorless camera and a Zeiss 85mm lens.
Greg.

Aaaah yes...that would be because I peeked at your next Rho image ...which was done using the Pentax lens, then I got confused in my reply ...both are quite nice and the fields are rather grand

Mike

[topheart]

Hi Greg,
That is a lovely image!!
Wow!
Well done!
Cheers,
Tim

[RickS (Rick)]

Great image, Greg! Such a cool field.

[Retrograde (Pete)]

Looks great Greg.

Having Rho and those golden star clouds together is a delicious contrast.

[Slawomir (Suavi)]

A very nice image Greg. I really like the idea of having a lens mounted on the big scope. I am wondering if 3 cooled mono cameras each with a lens, one for red, one for green and one for blue sitting of CDK would be an ultimate wide-field solution

[atalas]

Lovely wide shot Greg

[gregbradley]

Originally Posted by Placidus

The colour and contrast in the Milky Way is delicious. Love the streamers of dust hanging down like ribbons from Rho-Antares.

Thanks for that. These mirrorless cameras have come a long way and if they were mono sensors and cooled they would be very formidable.

Originally Posted by multiweb

Very punchy colours Greg. Widefield is fun.

Thanks Marc. Widefield is fun. I've enjoyed your lens images over the years.

Originally Posted by strongmanmike

Aaaah yes...that would be because I peeked at your next Rho image ...which was done using the Pentax lens, then I got confused in my reply ...both are quite nice and the fields are rather grand

Mike

Yes that one is part of a mosaic. I was hoping to shot 6 panels but my generator pooped one night and I lost a lovely clear night. I got 4 panels at the end though. Processing isn't quite right on that one yet as it was done on my blue biased laptop.

Originally Posted by topheart

Hi Greg,
That is a lovely image!!
Wow!
Well done!
Cheers,
Tim

Thanks Tim.

[gregbradley]

Originally Posted by RickS

Great image, Greg! Such a cool field.

Thanks Rick. Its an extraordinary region. Also there are some surprises in that area that the Proline picked up. An image from that coming shortly.

Originally Posted by Retrograde

Looks great Greg.

Having Rho and those golden star clouds together is a delicious contrast.

The golden star fields are an amazing feature. I was happy there was enough field of view to capture both.

Originally Posted by Slawomir

A very nice image Greg. I really like the idea of having a lens mounted on the big scope. I am wondering if 3 cooled mono cameras each with a lens, one for red, one for green and one for blue sitting of CDK would be an ultimate wide-field solution

Hmm I have 3 cooled mono cameras. Those Pentax 67 lenses are quite cheap, under a $100 as I recall. This image though was with a Sony A7r2 mirrorless full frame camera with a backside illuminated sensor with the latest Sony sensor wizardy. If it were a mono sensor and cooled it would kick some serious goals. At ISO1600 read noise is less than 1 electron.

Originally Posted by atalas

Lovely wide shot Greg

Thanks Louie.

Greg.