M20 & m21

[IanP]

One of NOT MANY photos this winter from the west:

M20 & M21 (FLT132+D810a)

Higher-res @
http://westcoastpics23.blogspot.com.au/?view=magazine

[strongmanmike (Michael)]

Lovely field, colours look excellent Ian, nice.

Mike

[Atmos (Colin)]

Nice FOV and colour. The D810a does quite a nice job with the Ha emission too.

[Placidus (Mike and Trish)]

Very fine image, Ian. Agree with Mike and Colin.

We like the pairing with the more mature cluster, and the thick dust about the place.

Best,
M & T

[RickS (Rick)]

Excellent work, Ian. Nice colours and pick up of the background Ha.

[Ryderscope (Rodney)]

A very nice field and fine colours.
A good one to keep Ian.

[IanP]

Many thanks Atmos, StrongmanMike, Placidus, RiskS and Rhodney!
Colours and field may look fine, but this is just the centre of the heavily cropped frame.

I’m not sure how other users of the D810a handle the mismatch of the Nikon-F-type-connector and the D810’s full-size sensor (35.9mm x 24.0mm) that in my opinion is congenital (porthole-effect). I’d like to hear from others on this issue ...

[multiweb (Marc)]

Very nice colours. Well done.

[Atmos (Colin)]

Originally Posted by IanP

I’m not sure how other users of the D810a handle the mismatch of the Nikon-F-type-connector and the D810’s full-size sensor (35.9mm x 24.0mm) that in my opinion is congenital (porthole-effect). I’d like to hear from others on this issue ...

What is the connector doing to your images in the wider field?

[alocky (Andrew lockwood)]

Originally Posted by IanP

Many thanks Atmos, StrongmanMike, Placidus, RiskS and Rhodney!
Colours and field may look fine, but this is just the centre of the heavily cropped frame.

I’m not sure how other users of the D810a handle the mismatch of the Nikon-F-type-connector and the D810’s full-size sensor (35.9mm x 24.0mm) that in my opinion is congenital (porthole-effect). I’d like to hear from others on this issue ...

Hi Ian, nice Trifid!
I use my 810a at f5 and f3.6 on the back of the FSQ and see very little vignetting in the flats. Part of that is probably due to the very low profile Tak f mount camera adapter that goes straight to 2" and seems to allow a lot more through than other t-ring adapters I have.
Cheers,
Andrew.